Hydrogenics Corporation

Canada

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H01M 8/04746 - PressureFlow 35
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1.

SYSTEMS AND METHODS FOR MECHANICAL STRENGTHENING AND ALIGNMENT OF FUEL CELL STACK ASSEMBLIES

      
Application Number 18680963
Status Pending
Filing Date 2024-05-31
First Publication Date 2025-01-16
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Cao, Hong
  • Wang, Rainey Yu
  • Joos, Nathaniel Ian

Abstract

A fuel cell stack includes a fuel cell including a bipolar plate sheet. The bipolar plate sheet includes an outer sheet edge having a first longitudinal edge and a first transverse edge, a first surface, and a first load-bearing extension arranged on the first longitudinal edge or the first transverse edge. The first load-bearing extension is configured to engage with an alignment bar or a support bar of a fuel cell stack assembling apparatus within which the fuel cell stack is compressed for assembly such that, during compression of the fuel cell stack, the first load-bearing extension engages the alignment bar or the support bar so as to transfer force loads from the alignment bar or the support bar away from the first outer sheet edge and toward a central area of the first bipolar plate sheet.

IPC Classes  ?

  • H01M 8/248 - Means for compression of the fuel cell stacks
  • H01M 8/0247 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the form
  • H01M 8/2404 - Processes or apparatus for grouping fuel cells

2.

METHODS AND SYSTEMS FOR MANAGING AND CONTROLLING EMISSIONS IN A HYBRID SYSTEM

      
Application Number 18786186
Status Pending
Filing Date 2024-07-26
First Publication Date 2024-11-21
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Beinborn, Aaron William
  • Genter, David P.
  • Joos, Nathaniel Ian
  • Koti, Archit
  • Ji, Guangji

Abstract

The present disclosure generally relates to a system and methods for managing and controlling emissions produced by a vehicle and/or powertrain, which includes one or more power sources selected from a fuel cell, a fuel cell stack, a battery, and combinations thereof, a processor, one or more inputs, a controller, and one or more emission control devices.

IPC Classes  ?

  • B60W 20/16 - Control strategies specially adapted for achieving a particular effect for reducing engine exhaust emissions
  • B60W 10/26 - Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
  • B60W 10/28 - Conjoint control of vehicle sub-units of different type or different function including control of fuel cells

3.

DILUTION CIRCUITRY FOR FUEL CELL VEHICLES WITH COMBINED FUEL CELL EXHAUST SYSTEMS

      
Application Number 18573315
Status Pending
Filing Date 2022-07-20
First Publication Date 2024-10-17
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Zaag, Nader
  • Sorbera, Sonia

Abstract

A method and system includes operating an air blower at an inlet of the fuel cell stack such that a portion of hydrogen in a combined exhaust of a fuel cell system, in all operating conditions of the fuel cell stack, is less than a predefined threshold.

IPC Classes  ?

  • H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
  • H01M 8/0438 - PressureAmbient pressureFlow
  • H01M 8/0444 - ConcentrationDensity
  • H01M 8/04537 - Electric variables
  • H01M 8/04791 - ConcentrationDensity

4.

SYSTEMS AND METHODS FOR REDUCING COSTS AND PARASITIC LOADS WHEN USING AN EJECTOR WITH A FUEL CELL

      
Application Number 18572393
Status Pending
Filing Date 2022-06-20
First Publication Date 2024-08-29
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Teene, Eero Andresson Aherma
  • Forte, Paolo

Abstract

The present disclosure generally relates to systems and methods for optimizing the use of a venturi or an ejector and reducing costs and parasitic loads associated with using the venturi or an ejector with a recirculation pump or blower in a fuel cell, fuel cell stack, and/or fuel cell system.

IPC Classes  ?

  • H01M 8/04007 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/04701 - Temperature
  • H01M 8/04746 - PressureFlow

5.

NON-UNIFORM REACTANT CHANNELS IN BIPOLAR PLATES FOR FUEL CELLS

      
Application Number 18561586
Status Pending
Filing Date 2022-06-03
First Publication Date 2024-07-18
Owner HYDROGENICS CORPORATION (Canada)
Inventor Ranieri, Salvatore

Abstract

The present disclosure generally relates to a fuel cell having a membrane electrode assembly, a gas diffusion layer, and a bipolar plate. The gas diffusion layer is adjacent a side of the membrane electrode assembly. The bipolar plate is adjacent the gas diffusion layer. The bipolar plate includes more than one anode channels and more than one cathode channels.

IPC Classes  ?

  • H01M 8/0265 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant the reactant or coolant channels having varying cross sections
  • H01M 8/026 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
  • H01M 8/0267 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors having heating or cooling means, e.g. heaters or coolant flow channels
  • H01M 8/241 - Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes

6.

SYSTEMS AND METHODS FOR OPERATING A FUEL CELL COMPRESSOR AS A COOLANT HEATER

      
Application Number 18526962
Status Pending
Filing Date 2023-12-01
First Publication Date 2024-06-13
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Rizzi, Justin Roberto
  • Forte, Paolo
  • Ranieri, Salvatore
  • Tripathi, Sumit
  • Malhi, Prabhsimran

Abstract

The present disclosure generally relates to systems and methods for operating a fuel cell system, including a coolant stream flowing through a fuel cell stack, a compressor configured to flow in a first air stream comprising a first air temperature and flow out a second air stream comprising a second air temperature, a charge cooler comprising the coolant stream configured to flow in the second air stream comprising the second air temperature, further configured to decrease the second air temperature, and flow out a third air stream comprising a third air temperature, along with a controller configured to regulate operation of the fuel cell system, including the fuel cell stack, the compressor, and the charge cooler.

IPC Classes  ?

  • H01M 8/04014 - Heat exchange using gaseous fluidsHeat exchange by combustion of reactants
  • H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
  • H01M 8/0432 - TemperatureAmbient temperature
  • H01M 8/04746 - PressureFlow

7.

BIPOLAR PLATES WITH FLOW CHANNELS FOR DIRECT DIFFUSION LAYER REACTANT INJECTION

      
Application Number 18503975
Status Pending
Filing Date 2023-11-07
First Publication Date 2024-05-23
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Ranieri, Salvatore
  • Rizzi, Justin Roberto
  • Joos, Nathaniel Ian
  • Ge, Nan

Abstract

A bipolar plate assembly for a fuel cell includes a first bipolar sheet having elongated lands formed thereon each defining secondary channels therein. The first bipolar sheet further includes primary channels formed between adjacent elongated lands. The first bipolar sheet includes an active area at which fluids flowing through the primary and secondary channels electrochemically react with an adjacent gas diffusion layer of the fuel cell. Top surfaces of the elongated lands include injectors formed as a hole in the top surfaces and located in the active area of the first bipolar sheet. Fluid flowing through the secondary channels is forced through the injectors, subsequently into the adjacent gas diffusion layer, and subsequently into and adjacent primary channel.

IPC Classes  ?

  • H01M 8/0265 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant the reactant or coolant channels having varying cross sections
  • H01M 8/04082 - Arrangements for control of reactant parameters, e.g. pressure or concentration

8.

SYSTEMS AND METHODS FOR OPTIMIZING AN EJECTOR DESIGN TO INCREASE OPERATING RANGE

      
Application Number 18390113
Status Pending
Filing Date 2023-12-20
First Publication Date 2024-04-18
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Teene, Eero Andresson Aherma
  • Forte, Paolo
  • Tripathi, Sumit

Abstract

The present disclosure is generally directed to a design geometry of a venturi or an ejector that is optimized in systems and methods for increasing the operating range of the venturi or the ejector in a fuel cell system. The present disclosure is also generally directed to fuel cell systems and methods for sizing and/or integrating a recirculation blower with a venturi or an ejector in a fuel cell or fuel cell stack. The present disclosure is further generally directed to systems and methods of operating a fuel cell system comprising more than one venturi or ejectors during transient operations.

IPC Classes  ?

  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • B01F 23/10 - Mixing gases with gases
  • B01F 25/312 - Injector mixers in conduits or tubes through which the main component flows with Venturi elementsDetails thereof
  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
  • H01M 8/04746 - PressureFlow

9.

HYDROGEN RECIRCULATION PUMP HEATING AND SEALING ASSEMBLIES AND METHODS

      
Application Number 18482858
Status Pending
Filing Date 2023-10-07
First Publication Date 2024-04-18
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Nelson, Christopher
  • Epp, Bryn
  • Joos, Nathaniel Ian

Abstract

A recirculation pump includes an impeller, a pump motor assembly, and a heater. The pump motor assembly includes a pump housing having a pump cavity and a pump motor arranged in the pump cavity that drives the impeller, the pump housing arranged axially away from the impeller. The heater is disposed on or in the pump housing and spaced apart from the impeller. The heater is configured to increase a temperature of any portion of the fluid that leaks from the impeller into the pump cavity and resides in the pump cavity. The increase in the temperature causes the fluid that resides in the pump cavity to flow toward the impeller and exit the pump cavity.

IPC Classes  ?

  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • F04D 29/046 - Bearings
  • F04D 29/08 - Sealings
  • F04D 29/58 - CoolingHeatingDiminishing heat transfer
  • H01M 8/04007 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
  • H01M 8/04303 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
  • H01M 8/04701 - Temperature
  • H01M 8/04746 - PressureFlow
  • H01M 8/04955 - Shut-off or shut-down of fuel cells

10.

FUEL LEAK DETECTION IN FUEL CELL STACK

      
Application Number 18544030
Status Pending
Filing Date 2023-12-18
First Publication Date 2024-04-11
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Sorbera, Sonia
  • Bencak, Robert
  • Malhi, Prabhsimran
  • Fregonese, Luke

Abstract

The present disclosure generally relates to systems and methods for detecting a hydrogen leak in a fuel cell system including initiating a shutdown process of a fuel cell stack in the fuel cell system by a controller, measuring a volume of hydrogen in a reservoir, pulsing a volume of hydrogen into the reservoir or pulsing hydrogen directly into the fuel cell stack if the volume of hydrogen is insufficient to sustain a voltage discharge process during the shutdown process, making the fuel cell system enter a discharge state by the controller, wherein hydrogen and oxygen in the fuel cell stack are consumed in an electrochemical reaction to discharge voltage in the fuel cell stack, measuring a rate of the voltage discharge by the controller, and detecting the hydrogen leak based on the rate of the voltage discharge or via negative pressure measurements made at the anode inlet.

IPC Classes  ?

  • H01M 8/04664 - Failure or abnormal function
  • H01M 8/04228 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during shut-down
  • H01M 8/04537 - Electric variables
  • H01M 8/04746 - PressureFlow

11.

SYSTEMS AND METHODS OF OPERATING A FUEL CELL HUMIDIFIER

      
Application Number US2023033579
Publication Number 2024/072724
Status In Force
Filing Date 2023-09-25
Publication Date 2024-04-04
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Rizzi, Justin Roberto
  • Ernst, Timothy C.
  • Tripathi, Sumit

Abstract

The present disclosure generally relates to systems and methods for a fuel cell system including a first by-pass valve configured to direct flow of a first portion of a first air stream through a humidifier and a second portion of the first air stream around the humidifier, a second by-pass valve configured to direct the flow of a first portion of a second air stream through a fuel cell stack, and a second portion of the second air stream around the fuel cell stack, and a controller configured to regulate operation of the first by-pass valve and the first by-pass valve. The humidifier is configured to humidify the first portion of the first air stream to form a humidified air stream and the second air stream includes the humidified air stream and the second portion of the first air stream.

IPC Classes  ?

  • H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
  • H01M 8/04298 - Processes for controlling fuel cells or fuel cell systems
  • H01M 8/043 - Processes for controlling fuel cells or fuel cell systems applied during specific periods
  • H01M 8/04303 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
  • H01M 8/04228 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during shut-down
  • H01M 8/04492 - HumidityAmbient humidityWater content
  • H01M 8/04828 - HumidityWater content
  • H01M 8/04955 - Shut-off or shut-down of fuel cells

12.

SYSTEMS AND METHODS FOR MAXIMIZING HYDROGEN PRODUCTION FROM RENEWABLE ENERGY SOURCES

      
Application Number 18460333
Status Pending
Filing Date 2023-09-01
First Publication Date 2024-03-14
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Vickress, Dustin
  • Ancimer, Richard J.
  • Chandraraj, Joseph P.
  • Cargnelli, Joseph

Abstract

The present disclosure relates to systems and methods to forecast changes in renewable energy availability to maximize hydrogen production by electrolysis systems over a period of renewable energy availability. The present disclosure relates to a method of utilizing variable energy including using a look-ahead forecast model, which provides an assessment of available renewable energy. The present disclosure relates to a method of operating of one or more electrolyzer cell stacks in an electrolysis system to produce hydrogen by using the look-ahead forecast model in real-time.

IPC Classes  ?

  • C25B 15/029 - Concentration
  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 9/65 - Means for supplying currentElectrode connectionsElectric inter-cell connections
  • C25B 9/70 - Assemblies comprising two or more cells
  • H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks

13.

BIPOLAR PLATES WITH OPTIMIZED CHANNEL GEOMETRY

      
Application Number IB2023058447
Publication Number 2024/042498
Status In Force
Filing Date 2023-08-25
Publication Date 2024-02-29
Owner HYDROGENICS CORPORATION (Canada)
Inventor Ranieri, Salvatore

Abstract

A bipolar plate assembly includes a bipolar sheet including channels formed on a surface of the sheet, each channel including a distribution region and an active region fluidically connected to the distribution region. The active region where fluid flowing through the channel is operable to electrochemically react with a gas diffusion layer of a fuel cell. Each channel is defined as a groove formed between a first land and a second land, the groove having a groove width defined from the first land to the second land, the first land defining a first top land surface having a first top land surface width. The quotient of dividing the first top land surface width by the sum of the first top land surface width and the groove width defines a land fraction. The land fraction in the entirety of the distribution region of each channel is equal to or below 0.3.

IPC Classes  ?

  • H01M 8/026 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
  • C25B 11/036 - Bipolar electrodes

14.

BIPOLAR PLATES WITH VARIABLE FURCATION RATIOS

      
Application Number IB2023058448
Publication Number 2024/042499
Status In Force
Filing Date 2023-08-25
Publication Date 2024-02-29
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Ranieri, Salvatore
  • Wang, Rainey Yu

Abstract

A bipolar plate includes a sheet having channels formed on a surface of the sheet, each channel including a header region, an active region, and an exhaust region. The channels are formed adjacent to each other and successively from a top side to a bottom side of the sheet. The active region is furcated into at least two active area channels along a longitudinal length of the active region from where the active region fluidically connects to the header region to where the active region fluidically connects to the exhaust region. A number of active area channels in the active regions of successive channels varies in one of a direction from the top side to the bottom side or a direction from the bottom side to the top side so as to achieve a uniform pressure drop and mass flow distribution across the plurality of channels.

IPC Classes  ?

  • H01M 8/026 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
  • C25B 11/036 - Bipolar electrodes

15.

UNIT CELL ARCHITECTURE FOR WATER MANAGEMENT IN A FUEL CELL

      
Application Number 18342128
Status Pending
Filing Date 2023-06-27
First Publication Date 2024-01-04
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Shrivastava, Udit
  • Ranieri, Salvatore
  • Jayasankar, Barathram
  • Bell, Ellsworth William
  • Joos, Nathaniel Ian
  • Kumar, Ashok

Abstract

A fuel cell system having a fuel cell includes an anode, a cathode, a membrane electrode assembly, a bipolar plate, and a microporous layer. The bipolar plate comprises an anode flow field.

IPC Classes  ?

  • H01M 8/026 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying

16.

FUEL CELL PURGE SYSTEM BASED ON TILT LOCATION

      
Application Number 18330023
Status Pending
Filing Date 2023-06-06
First Publication Date 2023-12-21
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Malhi, Prabhsimran
  • Sorbera, Sonia

Abstract

The present disclosure generally relates to systems and methods for purging water from a fuel cell stack system depending on its tilt angle and tilt location. The fuel cell stack system includes a fuel cell stack with a first corner, a second corner, a third corner and a fourth corner, a tilt sensor located on the fuel cell stack, wherein the tilt sensor is operable to detect tilt location of the fuel cell stack, and wherein the tilt location is the first, second, third or fourth corner of the fuel cell stack, a first purge valve system and a second purge valve system for removing water from an anode exhaust, and a controller.

IPC Classes  ?

  • H01M 8/04313 - Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variablesProcesses for controlling fuel cells or fuel cell systems characterised by the detection or assessment of failure or abnormal function
  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
  • H01M 8/04992 - Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence

17.

ELECTROLYSER AND ENERGY SYSTEM

      
Application Number 18460317
Status Pending
Filing Date 2023-09-01
First Publication Date 2023-12-21
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Joos, Nathaniel Ian
  • Cargnelli, Joseph

Abstract

An electrolyser operates within an energy system, for example to provide grid services, energy storage or fuel, or to produce hydrogen from electricity produced from renewable resources. The electrolyser may be configured to operate at frequently or quickly varying rates of electricity consumption or to operate at a specified power consumption.

IPC Classes  ?

  • C25B 15/02 - Process control or regulation
  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • G06Q 30/04 - Billing or invoicing
  • C25B 9/17 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof
  • C25B 9/70 - Assemblies comprising two or more cells
  • G06Q 50/06 - Energy or water supply

18.

DYNAMIC CONTROL OF PARALLEL CONNECTED FUEL CELL SYSTEMS

      
Application Number 18319078
Status Pending
Filing Date 2023-05-17
First Publication Date 2023-12-14
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Zaag, Nader
  • Sorbera, Sonia
  • Joos, Nathaniel Ian
  • Poon, John Yui Ki

Abstract

The present disclosure generally relates to systems and methods for operating a fuel cell system including at least two or more fuel cell systems that are connected in a parallel configuration.

IPC Classes  ?

  • H01M 8/04992 - Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
  • H01M 8/249 - Grouping of fuel cells, e.g. stacking of fuel cells comprising two or more groupings of fuel cells, e.g. modular assemblies
  • H01M 8/2457 - Grouping of fuel cells, e.g. stacking of fuel cells with both reactants being gaseous or vaporised
  • H01M 8/2475 - Enclosures, casings or containers of fuel cell stacks

19.

HYBRID BIPOLAR PLATE FOR A FUEL CELL AND METHODS OF MANUFACTURING THE SAME

      
Application Number 18325724
Status Pending
Filing Date 2023-05-30
First Publication Date 2023-12-14
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Graziano, Antimo
  • Duraisamy, Arun
  • Ni, Qing
  • Shrivastava, Udit

Abstract

A bipolar plate assembly for a fuel cell includes a cathode sheet assembly and an anode sheet assembly. The cathode sheet assembly includes a first cathode sheet, a second cathode sheet, and a first divider sheet arranged between the first cathode sheet and the second cathode sheet. The anode sheet assembly includes an anode sheet and a second divider sheet arranged on an anode sheet inner surface. The second cathode sheet is arranged on the second divider sheet such that the anode sheet assembly and the cathode sheet assembly form the bipolar plate. The cathode sheet assembly includes passages through which coolant fluid may flow. The first and second divider sheets prevent the fluid from permeating through the cathode and anode sheets and interacting with the adjacent cathode and anode gas diffusion layers.

IPC Classes  ?

  • H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
  • H01M 8/0243 - Composites in the form of mixtures
  • H01M 8/0232 - Metals or alloys
  • H01M 8/026 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
  • H01M 8/04029 - Heat exchange using liquids
  • H01M 4/88 - Processes of manufacture

20.

CONTROL SYSTEMS AND METHODS FOR MONITORING ELECTROLYZER CELL STACK CONDITIONS AND EXTENDING OPERATIONAL LIFE

      
Application Number US2023022373
Publication Number 2023/229879
Status In Force
Filing Date 2023-05-16
Publication Date 2023-11-30
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Vickress, Dustin
  • Sinanan, Anson
  • Ancimer, Richard J.
  • Joos, Nathaniel Ian

Abstract

A method of optimizing operating lifespan of an electrolysis system includes measuring an operating parameter of a component of the system at a first location of the electrolysis system with a first sensor to obtain a raw measurement, the raw measurement including a value and/or a rate of change of the parameter, receiving the raw measurement at a controller, comparing the value to a nominal measurement and/or the rate of change to a nominal rate of change. The method further includes diagnosing an abnormality of the component based on the value and/or rate of change differing from nominal values. The method further includes, in response to the diagnosis of the abnormality, outputting a message to an operator of the electrolysis system indicative of the abnormality.

IPC Classes  ?

  • H01M 8/1016 - Fuel cells with solid electrolytes characterised by the electrolyte material
  • H01M 8/1018 - Polymeric electrolyte materials
  • H01M 8/18 - Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
  • H01M 8/10 - Fuel cells with solid electrolytes

21.

MULTIPLE FUEL CELL STACKS IN A SINGLE ENDPLATE ARRANGEMENT

      
Application Number 18319011
Status Pending
Filing Date 2023-05-17
First Publication Date 2023-11-30
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Hill, Andrew
  • Forte, Paolo

Abstract

A system includes a plurality of fuel cell stacks, a balance of plant (BOP), and a first endplate and a second endplate. Each of the plurality of fuel cell stacks includes at least one fuel cell. The BOP is configured to monitor and control operation of the plurality of the fuel cell stacks. The BOP is operatively coupled to at least one of the first endplate and the second endplate to deliver, transfer, and vent fuel and oxidant to and from the plurality of fuel cell stacks.

IPC Classes  ?

  • H01M 8/04746 - PressureFlow
  • H01M 8/2484 - Details of groupings of fuel cells characterised by external manifolds
  • H01M 8/249 - Grouping of fuel cells, e.g. stacking of fuel cells comprising two or more groupings of fuel cells, e.g. modular assemblies
  • H01M 8/0247 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the form

22.

FLUID VORTEX BREAKER

      
Application Number 18316728
Status Pending
Filing Date 2023-05-12
First Publication Date 2023-11-23
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Distelmans, Michel
  • Colin, Julie
  • Sperry, Robert
  • Vickress, Dustin
  • Vale, Michael

Abstract

A vortex breaker assembly includes a vessel, a first conduit, and a fluid source. The vessel having a first fluid arranged therein. The vessel includes an opening formed in an outer wall. The first conduit is coupled to the vessel and configured to open into the vessel via the opening such that the first fluid can flow into the first conduit via the opening. The first conduit includes an inlet formed therein. The fluid source provides a second fluid to the at least one inlet. The second fluid flows into the first conduit from the inlet at a predetermined flow momentum such that the second fluid interacts with the first fluid flowing from the vessel and through the first conduit so as to disrupt a flow field of the first fluid and minimize formation of a fluidic vortex of the first fluid at the opening.

IPC Classes  ?

  • F15D 1/00 - Influencing the flow of fluids
  • C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes
  • B01D 19/00 - Degasification of liquids

23.

MODULAR FUEL CELL POWER SYSTEM ARCHITECTURE FOR HYBRID VEHICLES

      
Application Number 18317306
Status Pending
Filing Date 2023-05-15
First Publication Date 2023-11-16
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (USA)
Inventor
  • Ragi, Sravan Kumar
  • Turlapati, Agneya
  • Genter, David
  • Landes, Brian K.
  • Lee, Heonjoong
  • Richards, Kieran J.
  • Saha, Rohit
  • Ancimer, Richard J.
  • Joos, Nathaniel Ian

Abstract

The present disclosure generally relates to modular fuel cell systems that provide power, air handling, and/or cooling systems to create a hybrid or electric vehicle.

IPC Classes  ?

  • H01M 8/2465 - Details of groupings of fuel cells
  • H01M 8/04082 - Arrangements for control of reactant parameters, e.g. pressure or concentration
  • H01M 8/2457 - Grouping of fuel cells, e.g. stacking of fuel cells with both reactants being gaseous or vaporised
  • B60L 50/75 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries
  • B60K 15/063 - Arrangement of tanks

24.

HYDROGEN DEGASSING USING MEMBRANE

      
Application Number 18304609
Status Pending
Filing Date 2023-04-21
First Publication Date 2023-10-26
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Vale, Michael A.
  • Distelmans, Michel Leopold Bertrand

Abstract

An electrolysis system includes an electrolyzer cell configured to convert water into oxygen gas and hydrogen gas using electrolysis, and a membrane degasser operatively coupled downstream from the electrolyzer cell and configured to receive a water solution output by the electrolyzer cell. The membrane degasser is configured to remove hydrogen gas from the water solution to generate degassed water. The membrane degasser outputs the degassed water to a water tank for recirculation to the electrolyzer cell.

IPC Classes  ?

  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes

25.

SINGLE SHEET BIPOLAR PLATE FOR CELL STACK ASSEMBLY AND METHOD OF MAKING AND USING THE SAME

      
Application Number 18194934
Status Pending
Filing Date 2023-04-03
First Publication Date 2023-10-12
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Shrivastava, Akhil
  • Sinanan, Anson
  • Mani Murugan, Ganesh Raj
  • Thirunavukkarasu, Naveen Prakash

Abstract

The present disclosure is directed to a single sheet electrochemical cell bipolar plate for stack assembly comprising a single sheet of formable material having an anode side and a cathode side opposite the anode side, wherein the anode side and the cathode side have a different structural configuration, a plurality of water channels on the anode side, a plurality of hydrogen channels on the cathode side, a plurality of lands comprise a groove and a flange, and a seal positioned within the flange to provide a variable groove depth for the land.

IPC Classes  ?

  • H01M 8/0267 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors having heating or cooling means, e.g. heaters or coolant flow channels
  • H01M 8/0286 - Processes for forming seals
  • H01M 4/88 - Processes of manufacture

26.

RAISED FEED CHANNELS TO MAINTAIN PLANAR BIPOLAR PLATE ALIGNMENT

      
Application Number 18189624
Status Pending
Filing Date 2023-03-24
First Publication Date 2023-10-12
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Ranieri, Salvatore
  • Joos, Nathaniel Ian
  • Wang, Rainey Yu
  • Link, Thomas Anthony

Abstract

A fuel cell assembly includes a first bipolar plate, a second bipolar plate, and a diffusion-electrode assembly. A first top surface of the first plate includes a first seal protruding upwardly and a first raised feed channel adjacent the first seal and protruding upwardly. A second bottom surface of the second plate includes a second seal protruding downwardly and a second raised feed channel adjacent the second seal and protruding downwardly. The diffusion-electrode assembly includes a membrane layer having a membrane frame extending therefrom and two gas diffusion layers. The first and second plates are arranged parallel, the first and second seals align with each other, and the first and second raised feed channels align with each other. The first and second raised feed channels contact the membrane frame arranged therebetween so as to prevent mechanical deformations of the first and second plates.

IPC Classes  ?

  • H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
  • H01M 8/1004 - Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
  • H01M 8/0271 - Sealing or supporting means around electrodes, matrices or membranes

27.

ASSESSING HEALTH OF A FUEL STACK USING FUEL CELL VOLTAGE DIAGNOSTICS

      
Application Number 18189450
Status Pending
Filing Date 2023-03-24
First Publication Date 2023-10-12
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Forte, Paolo
  • Rizzi, Justin Roberto
  • Malhi, Prabhsimran
  • Tripathi, Sumit
  • Teene, Eero
  • Kumar, Ashok

Abstract

The present disclosure generally relates to systems and methods for assessing the health of a fuel cell stack including collecting fuel cell stack operating data by a controller including stack voltage data and cell voltage monitoring data and determining the trust in the collected data, processing stack voltage data and cell voltage monitoring data by the controller to identify bad channels and weak cells amongst fuel cells included in the fuel cell stack, tracking the state of health of the fuel cell stack by the controller, and assessing the health of the fuel cell stack by the controller.

IPC Classes  ?

28.

A SINGLE SHEET BIPOLAR PLATE FOR CELL STACK ASSEMBLY AND METHOD OF MAKING AND USING THE SAME

      
Document Number 03197156
Status Pending
Filing Date 2023-04-05
Open to Public Date 2023-10-06
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Shrivastava, Akhil
  • Sinanan, Anson
  • Mani Murugan, Ganesh Raj
  • Thirunavukkarasu, Naveen Prakash

Abstract

The present disclosure is directed to a single sheet electrochemical cell bipolar plate for stack assembly comprising a single sheet of formable material having an anode side and a cathode side opposite the anode side, wherein the anode side and the cathode side have a different structural configuration, a plurality of water channels on the anode side, a plurality of hydrogen channels on the cathode side, a plurality of lands comprise a groove and a flange, and a seal positioned within the flange to provide a variable groove depth for the land.

IPC Classes  ?

  • C25B 9/75 - Assemblies comprising two or more cells of the filter-press type having bipolar electrodes
  • H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
  • H01M 8/0276 - Sealing means characterised by their form
  • H01M 8/2465 - Details of groupings of fuel cells
  • C25B 11/036 - Bipolar electrodes

29.

SUSTAINING STATE OF CHARGE AND STATE OF HEALTH IN FUEL CELL MODULES AND BATTERIES OF A FUEL CELL HYBRID SYSTEM

      
Application Number 18189851
Status Pending
Filing Date 2023-03-24
First Publication Date 2023-09-28
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Turlapati, Agneya
  • Raut, Akshat Abhay
  • Ray, Arka Saha
  • Puri, Anant
  • Genter, David P.
  • Beinborn, Aaron William
  • Chandraraj, Joseph P.
  • Tripathi, Sumit
  • Lee, Heonjoong

Abstract

A system for a fuel cell vehicle including a plurality of fuel cell modules, a plurality of battery packs, and a controller. At least one of the plurality of fuel cell modules having a state of health (SOH) different from a corresponding SOH of other fuel cell modules. Each battery pack including a plurality of battery cells. At least one of the plurality of battery packs having a SOH different from a corresponding SOH of other battery packs. The controller is communicatively coupled to monitor and control operation of the plurality of fuel cell modules and the plurality of battery packs. The controller is configured to receive a power demand and determine a power split between the plurality of fuel cell modules and the plurality of battery packs based on an operating phase of the vehicle.

IPC Classes  ?

  • B60L 50/75 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries
  • G01R 31/382 - Arrangements for monitoring battery or accumulator variables, e.g. SoC
  • G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
  • H01M 8/04858 - Electric variables
  • H01M 8/04537 - Electric variables

30.

ELECTRODE PRESSURE BALANCE FOR A NITROGEN BLANKETING PROCESS

      
Application Number 17957368
Status Pending
Filing Date 2022-09-30
First Publication Date 2023-09-14
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ranieri, Salvatore
  • Teene, Eero
  • Forte, Paolo
  • Rizzi, Justin
  • Malhi, Prabhsimran
  • Ancimer, Richard
  • Tripathi, Sumit
  • Sorbera, Sonia

Abstract

The present disclosure generally relates to systems and methods for operating a shutdown process in a fuel cell system including connecting a passive electrical load to a fuel cell stack in the fuel cell system before initiating the shutdown process, disconnecting a DC-DC converter by a system controller, initiating nitrogen blanketing after a current passing through the DC-DC converter is reduced to about zero, ensuring water content in the fuel cell stack is about zero, and sending a signal to the system controller to initiate the shutdown process.

IPC Classes  ?

  • H01M 8/04955 - Shut-off or shut-down of fuel cells
  • H01M 8/04228 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during shut-down
  • H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/04746 - PressureFlow
  • H01M 8/0438 - PressureAmbient pressureFlow

31.

Dynamic adjustment of current or power draw for fuel cell applications with enhanced transient capabilities

      
Application Number 18324748
Grant Number 11757116
Status In Force
Filing Date 2023-05-26
First Publication Date 2023-09-12
Grant Date 2023-09-12
Owner HYDROGENICS CORPORATIONS (Canada)
Inventor
  • Zaag, Nader
  • Sorbera, Sonia
  • Chan, Hing Yan Edmond
  • Yu, Chun

Abstract

A system includes a fuel cell stack and a controller. The controller is configured to determine a current density of the fuel cell stack, determine a threshold voltage value, and compare a measured average fuel cell voltage value and the threshold voltage value. The controller is configured to set an allowed current and power draw of the fuel cell stack.

IPC Classes  ?

  • H01M 8/04858 - Electric variables
  • H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
  • H01M 8/0432 - TemperatureAmbient temperature
  • H01M 8/04537 - Electric variables
  • H01M 8/04701 - Temperature

32.

Systems and methods for hydrogen supply valve leak detection

      
Application Number 18329996
Grant Number 11757119
Status In Force
Filing Date 2023-06-06
First Publication Date 2023-09-12
Grant Date 2023-09-12
Owner HYDROGENICS CORPORATIONS (Canada)
Inventor
  • Zaag, Nader
  • Sorbera, Sonia
  • Joos, Nathaniel Ian

Abstract

A method of performing a leak check of a hydrogen supply valve of a fuel cell system includes supplying hydrogen to a fuel cell stack of the system for a predetermined time period closing the supply valve and purge valves, and opening a cathode exhaust valve. The method further includes supplying oxygen to the fuel cell stack for the predetermined time period, continuously measuring a test voltage of the fuel cell stack during the predetermined time period while oxygen is being supplied to the fuel cell stack, and determining that the hydrogen supply valve is leaking in response to the test voltage exceeding a predetermined leak voltage for the predetermined time period.

IPC Classes  ?

  • H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
  • H01M 8/04992 - Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
  • G01M 3/18 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for valves
  • H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
  • H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
  • H01M 8/04746 - PressureFlow

33.

SYSTEMS AND METHODS FOR NITROGEN BLANKETING PROCESS DURING FUEL CELL STACK SHUTDOWN

      
Document Number 03177185
Status Pending
Filing Date 2022-09-29
Open to Public Date 2023-09-08
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ranieri, Salvatore
  • Teene, Eero
  • Forte, Paolo
  • Rizzi, Justin
  • Malhi, Prabhsimran
  • Ancimer, Richard J.
  • Tripathi, Sumit
  • Sorbera, Sonia

Abstract

The present disclosure generally relates to systems and methods for operating a shutdown process in a fuel cell system including connecting a passive electrical load to a fuel cell stack in the fuel cell system before initiating the shutdown process, disconnecting a DC- DC converter by a system controller, initiating nitrogen blanketing after a current passing through the DC-DC converter is reduced to about zero, ensuring water content in the fuel cell stack is about zero, and sending a signal to the system controller to initiate the shutdown process.

IPC Classes  ?

  • H01M 8/04303 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
  • H01M 8/04228 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during shut-down

34.

Fuel leak detection in fuel cell stack

      
Application Number 18168323
Grant Number 11855320
Status In Force
Filing Date 2023-02-13
First Publication Date 2023-08-31
Grant Date 2023-12-26
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Sorbera, Sonia
  • Bencak, Robert
  • Malhi, Prabhsimran
  • Fregonese, Luke

Abstract

The present disclosure generally relates to systems and methods for detecting a hydrogen leak in a fuel cell system including initiating a shutdown process of a fuel cell stack in the fuel cell system by a controller, measuring a volume of hydrogen in a reservoir, pulsing a volume of hydrogen into the reservoir or pulsing hydrogen directly into the fuel cell stack if the volume of hydrogen is insufficient to sustain a voltage discharge process during the shutdown process, making the fuel cell system enter a discharge state by the controller, wherein hydrogen and oxygen in the fuel cell stack are consumed in an electrochemical reaction to discharge voltage in the fuel cell stack, measuring a rate of the voltage discharge by the controller, and detecting the hydrogen leak based on the rate of the voltage discharge or via negative pressure measurements made at the anode inlet.

IPC Classes  ?

  • H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
  • H01M 8/04664 - Failure or abnormal function
  • H01M 8/04537 - Electric variables
  • H01M 8/04746 - PressureFlow
  • H01M 8/04228 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during shut-down

35.

ADDITIVE APPLICATION OF MICROPOROUS LAYER ONTO GAS DIFFUSION LAYER

      
Application Number 18157664
Status Pending
Filing Date 2023-01-20
First Publication Date 2023-08-03
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Bell, Ellsworth William
  • Shrivastava, Udit N.
  • Harinath, Arvind V.

Abstract

A fuel cell including a catalyst layer configured to generate liquid water in response to a reactant being in contact therewith. The fuel cell includes a microporous layer having a first region with a first pore size and a second region disposed adjacent to the first region having a second pore size. The first pore size being greater than the second pore size. The microporous layer being configured to transfer the liquid water away from the catalyst layer, such that the liquid water from the catalyst layer enters the first region in response to a capillary pressure of the liquid water being greater than a first capillary pressure. The liquid water enters the second region in response to a capillary pressure of the liquid water being greater than a second capillary pressure. The first capillary pressure being different from the second capillary pressure.

IPC Classes  ?

  • H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
  • H01M 4/88 - Processes of manufacture

36.

SYSTEMS AND METHODS TO OPTIMIZE A FUEL RECIRCULATION LOOP IN A FUEL CELL STACK

      
Application Number 18157612
Status Pending
Filing Date 2023-01-20
First Publication Date 2023-08-03
Owner
  • CUMMINS INC (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ahmadzadegan, Amir
  • Ancimer, Richard J.
  • Teene, Eero Andresson Aherma

Abstract

The present disclosure generally relates to systems and methods for operating a fuel cell system including a three-port differential pressure switch in a recirculation loop of the fuel cell system comprising a blower and an ejector. A sensor in the three-port differential pressure switch is activated when a pressure ratio of a first pressure difference and second pressure difference exceeds a threshold ratio.

IPC Classes  ?

  • H01M 8/04746 - PressureFlow
  • H01M 8/0438 - PressureAmbient pressureFlow
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants

37.

GLUELESS REPEATABLE FINGER ATTACHMENT FOR MONITORING FUEL CELL VOLTAGE

      
Application Number 18150028
Status Pending
Filing Date 2023-01-04
First Publication Date 2023-08-03
Owner HYDROGENICS CORPORATION (Canada)
Inventor Hill, Andrew

Abstract

The present disclosure relates to a glueless repeatable finger attachment apparatus and method of monitoring a fuel cell voltage comprising the same.

IPC Classes  ?

  • H01M 8/04537 - Electric variables
  • G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
  • G01R 31/3835 - Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
  • G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
  • H01M 8/0247 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the form

38.

ADDITIVE APPLICATION OF MICROPOROUS LAYER ONTO GAS DIFFUSION LAYER

      
Document Number 03187969
Status Pending
Filing Date 2023-01-27
Open to Public Date 2023-07-31
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Bell, Ellsworth William
  • Shrivastava, Udit N.
  • Harinath, Arvind V.

Abstract

A fuel cell including a catalyst layer configured to generate liquid water in response to a reactant being in contact therewith. The fuel cell includes a microporous layer haying a first region with a first pore size and a second region disposed adjacent to the first region haying a second pore size. The first pore size being greater than the second pore size. The microporous layer being configured to transfer the liquid water away from the catalyst layer, such that the liquid water from the catalyst layer enters the first region in response to a capillary pressure of the liquid water being greater than a first capillary pressure. The liquid water enters the second region in response to a capillary pressure of the liquid water being greater than a second capillary pressure. The first capillary pressure being different from the second capillary pressure.

IPC Classes  ?

  • H01M 8/0245 - Composites in the form of layered or coated products
  • H01M 8/0239 - Organic resinsOrganic polymers

39.

THERMAL MANAGEMENT SYSTEM AND METHOD OF POSITIONING AND ADJUSTING COOLANT FLOW FOR STATIONARY VEHICLE FUEL CELL APPLICATIONS

      
Application Number 18186780
Status Pending
Filing Date 2023-03-20
First Publication Date 2023-07-20
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Pubrat, David
  • Wajda, Tomasz
  • Hill, Andrew
  • Cecaric, Predrag

Abstract

The present disclosure relates to a thermal management system and method of adjusting and/or reversing coolant flow of a fuel cell system during stationary applications.

IPC Classes  ?

  • H01M 8/04007 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
  • B60L 50/72 - Constructional details of fuel cells specially adapted for electric vehicles
  • B60L 58/33 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by cooling
  • H01M 8/04313 - Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variablesProcesses for controlling fuel cells or fuel cell systems characterised by the detection or assessment of failure or abnormal function

40.

RESIN IMPREGNATION OF BIPOLAR PLATES

      
Application Number 18149532
Status Pending
Filing Date 2023-01-03
First Publication Date 2023-07-20
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Ni, Qing
  • Duraisamy, Arun
  • Joos, Nathaniel

Abstract

The present disclosure generally relates to systems and methods for impregnating resin in one or more coolant channels in a bipolar plate before or after assembly of the bipolar plates into a fuel cell stack.

IPC Classes  ?

  • H01M 8/0267 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors having heating or cooling means, e.g. heaters or coolant flow channels
  • H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
  • H01M 8/0228 - Composites in the form of layered or coated products
  • H01M 8/04029 - Heat exchange using liquids

41.

STEADY AND TRANSIENT STATE OPERATION OF FUEL CELLS

      
Application Number IB2023050114
Publication Number 2023/131906
Status In Force
Filing Date 2023-01-06
Publication Date 2023-07-13
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Ranieri, Salvatore
  • Rizzi, Justin Roberto
  • Tripathi, Sumit

Abstract

The present disclosure generally relates to systems and methods for operating a fuel cell system including operating a fuel cell comprising a membrane electrode assembly, dynamically operating an air handling system comprising an air compressor which controls stack pressure and air flow in the fuel cell stack system, determining a parasitic loss in the fuel cell system based on the air handling system, and operating the fuel cell system in transient conditions based on a transient system curve. The transient system curve may be based on a relationship between the stack pressure and stack temperature, and the parasitic loss.

IPC Classes  ?

  • H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
  • H01M 8/248 - Means for compression of the fuel cell stacks
  • H01M 8/0432 - TemperatureAmbient temperature
  • H01M 8/0438 - PressureAmbient pressureFlow
  • H01M 8/1004 - Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
  • H01M 8/2484 - Details of groupings of fuel cells characterised by external manifolds
  • H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
  • H01M 8/04746 - PressureFlow

42.

BIPOLAR PLATE REACTANT CHANNELS WITH LOCAL VARIATIONS TO INCREASE DIFFUSION THROUGH A GAS DIFFUSION LAYER

      
Application Number 18069717
Status Pending
Filing Date 2022-12-21
First Publication Date 2023-07-06
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Ranieri, Salvatore
  • Wang, Rainey Yu
  • Joos, Nathaniel Ian

Abstract

The present disclosure generally relates to systems and methods for inducing a secondary flow from a first groove in a bipolar plate of a fuel cell to a second groove in the bipolar plate over a first land in the bipolar plate wherein the land is adjacent to a compressed section of a gas diffusion layer in the fuel cell, and wherein the secondary flow increases locally available oxygen and hydrogen at the membrane electrode assembly adjacent to the compressed section of the gas diffusion layer.

IPC Classes  ?

  • H01M 8/026 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
  • H01M 8/0267 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors having heating or cooling means, e.g. heaters or coolant flow channels

43.

LOW TEMPERATURE ELECTROCHEMICAL SYSTEM FOR HYDROGEN PURIFICATION AND PRESSURIZATION

      
Application Number 18065318
Status Pending
Filing Date 2022-12-13
First Publication Date 2023-06-22
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Shrivastava, Udit N.
  • Harinath, Arvind V.
  • Eastcott, Jennie
  • Ni, Qing
  • Ancimer, Richard J.
  • Van Den Bosch, Frank

Abstract

The present disclosure generally relates to systems and methods of purifying hydrogen, comprising humidifying, oxygenating, and purifying an impure gas stream to produce hydrogen in an electrochemical pump stack. The purified hydrogen is segregated and dispelled from the electrochemical pump stack.

IPC Classes  ?

  • B01D 53/32 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by electrical effects other than those provided for in group
  • B01D 53/30 - Controlling by gas-analysis apparatus
  • B01D 53/26 - Drying gases or vapours
  • H01M 8/0662 - Treatment of gaseous reactants or gaseous residues, e.g. cleaning
  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
  • C01B 3/56 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids

44.

SYSTEMS AND METHODS FOR MANAGING FLOW AND PRESSURE CROSS COUPLING BETWEEN AIR COMPRESSOR FLOW AND FUEL CELL STACK BACKPRESSURE

      
Application Number 18063498
Status Pending
Filing Date 2022-12-08
First Publication Date 2023-06-15
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Tripathi, Sumit
  • Ancimer, Richard J.
  • Ranieri, Salvatore
  • Muller, Maximilian

Abstract

The present disclosure generally relates to systems and methods in a vehicle or powertrain system including an air stream flowing through an air compressor and an air cooler into a fuel cell stack, an air stream flowing out of the fuel cell stack to an ambient through a backpressure valve, one or more sensors for measuring pressure or temperature in the first air stream or second air stream, and a controller controlling the flow of the first air stream, the flow of the scond air stream and the opening of the backpressure valve.

IPC Classes  ?

  • H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
  • H01M 8/04014 - Heat exchange using gaseous fluidsHeat exchange by combustion of reactants
  • H01M 8/0432 - TemperatureAmbient temperature
  • H01M 8/04746 - PressureFlow

45.

FUEL CELL POWERTRAIN SYSTEMS AND METHODS FOR POWER SPLIT AND ALLOCATION IN FUEL CELL POWERTRAIN SYSTEMS

      
Application Number 17549490
Status Pending
Filing Date 2021-12-13
First Publication Date 2023-06-15
Owner
  • Cummins Inc. (USA)
  • Hydrogenics Corporation (Canada)
Inventor
  • Koti, Archit N.
  • Kaufman, Patrick
  • Weitzel, Elizabeth
  • Sujan, Vivek Anand
  • Books, Martin T.
  • Rao, Chinmay
  • Yu, Yongfei
  • Liu, Sharon
  • Tripathi, Sumit
  • Genter, David P.
  • Turlapati, Agneya
  • Saha, Rohit
  • Yan, Jifei

Abstract

The present disclosure generally relates to systems and methods for implementing power a power split between a first and a second power source in a fuel cell powertrain system. The method includes receiving an input into a processor of the fuel cell powertrain system, determining an output by the processor, communicating the output by the processor to a system controller and determining a power split by the system controller. The first power source includes a fuel cell system and the second power source is selected from a battery system or an engine, and the input includes a life or health of at least one of the first power source or the second power source.

IPC Classes  ?

  • B60L 50/75 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries
  • H01M 16/00 - Structural combinations of different types of electrochemical generators
  • H01M 8/04858 - Electric variables
  • H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • B60L 58/16 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
  • B60L 58/30 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells

46.

FUEL CELL STACK HUMIDIFICATION SYSTEM

      
Application Number 18057534
Status Pending
Filing Date 2022-11-21
First Publication Date 2023-06-08
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Shrivastava, Udit N.
  • Ranieri, Salvatore
  • Forte, Paolo
  • Rizzi, Justin Roberto
  • Koti, Archit N.

Abstract

A humidification device includes a tubular mass exchanger fluidically coupled to receive intake air stream and transfer intake air stream to an intake air inlet of a fuel cell stack. The humidification device includes a housing configured to house the tubular mass exchanger to define a void therebetween. The housing defines at least one housing inlet opening fluidically coupled to direct an exhaust air stream output by the fuel cells tack into the void. The housing defines at least one housing outlet opening fluidically coupled to direct the exhaust air stream away from within the housing. The tubular mass exchanger is configured to extract water vapor from the exhaust air stream and transfer the extracted water vapor to the intake air stream flowing within the tubular mass exchanger to humidify the intake air stream to generate a humidified intake air stream.

IPC Classes  ?

  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
  • H01M 8/04291 - Arrangements for managing water in solid electrolyte fuel cell systems
  • F24F 6/12 - Air-humidification by forming water dispersions in the air

47.

PURGE SYSTEMS AND METHODS IN A FUEL CELL SYSTEM

      
Application Number 18056366
Status Pending
Filing Date 2022-11-17
First Publication Date 2023-06-01
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Teene, Eero
  • Forte, Paolo
  • Tripathi, Sumit
  • Ancimer, Richard J.
  • Malhi, Prabhsimran

Abstract

The present disclosure generally relates to systems and methods for purging water or gas from a fuel cell system. The fuel cell system may include a multi-phase valve system and/or a separate valve system. The opening and closing of the valve systems for removing gas and water is controlled by a controller,

IPC Classes  ?

  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
  • H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
  • H01M 8/04828 - HumidityWater content
  • H01M 8/04746 - PressureFlow
  • H01M 8/04492 - HumidityAmbient humidityWater content
  • H01M 8/04537 - Electric variables
  • G05D 7/06 - Control of flow characterised by the use of electric means
  • G05D 9/12 - Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

48.

SYSTEMS AND METHODS FOR CONTROLLING AND MONITORING A FUEL CELL STACK USING CATHODE EXHAUST HUMIDITY

      
Application Number 17955240
Status Pending
Filing Date 2022-09-28
First Publication Date 2023-04-06
Owner
  • HYDROGENICS CORPORATION (Canada)
  • CUMMINS INC. (USA)
Inventor
  • Ancimer, Richard J.
  • Rizzi, Justin Roberto
  • Ranieri, Salvatore

Abstract

The present disclosure generally relates to systems and methods for using a relative humidity sensor in a cathode exhaust stream of a fuel cell stack to optimize the performance and efficiency of the fuel cell stack.

IPC Classes  ?

  • H01M 8/04492 - HumidityAmbient humidityWater content
  • H01M 8/2457 - Grouping of fuel cells, e.g. stacking of fuel cells with both reactants being gaseous or vaporised
  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
  • H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
  • H01M 8/04007 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
  • H01M 8/0444 - ConcentrationDensity
  • H01M 8/0438 - PressureAmbient pressureFlow
  • H01M 8/0432 - TemperatureAmbient temperature
  • H01M 8/04701 - Temperature
  • H01M 8/04746 - PressureFlow
  • H01M 8/04828 - HumidityWater content

49.

SYSTEMS AND METHODS FOR LIQUID HEATING BALANCE OF PLANT COMPONENTS OF A FUEL CELL MODULE

      
Application Number 17955342
Status Pending
Filing Date 2022-09-28
First Publication Date 2023-03-30
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Sorbera, Sonia
  • Joos, Nathaniel Ian
  • Forte, Paolo
  • Hill, Andrew

Abstract

The present disclosure relates to systems and methods for heating a fuel cell module.

IPC Classes  ?

  • H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
  • H01M 8/04007 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
  • H01M 8/04029 - Heat exchange using liquids
  • H01M 8/04701 - Temperature
  • H01M 8/04746 - PressureFlow

50.

High or differential pressure electrolysis cell

      
Application Number 18049178
Grant Number 11767598
Status In Force
Filing Date 2022-10-24
First Publication Date 2023-03-16
Grant Date 2023-09-26
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Abouatallah, Rami Michel
  • Wang, Rainey Yu
  • Joos, Nathaniel Ian

Abstract

An electrochemical cell has a membrane located between two flow field plates. On a first side of the membrane, there is a porous support surrounded by a seal between the membrane and the flow field plate. There is a gap between the porous support and the seal at the surface of the membrane. On a second side of the membrane, there is a seal between the membrane and the flow field plate located inside of the gap in plan view. The electrochemical cell is useful, for example, in high pressure or differential pressure electrolysis in which the second side of the membrane will be consistently exposed to a higher pressure than the first side of the membrane.

IPC Classes  ?

  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 9/05 - Pressure cells
  • C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
  • H01M 8/0273 - Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
  • H01M 8/023 - Porous and characterised by the material
  • H01M 8/10 - Fuel cells with solid electrolytes
  • C25B 9/19 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms
  • C25B 9/73 - Assemblies comprising two or more cells of the filter-press type

51.

SYSTEMS AND METHODS TO MEASURE OR CONTROL FUEL CELL STACK EXCESS HYDROGEN FLOW USING EJECTOR MIXING STATE

      
Application Number 17898070
Status Pending
Filing Date 2022-08-29
First Publication Date 2023-03-16
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Forte, Paolo
  • Tripathi, Sumit

Abstract

The present disclosure generally relates to systems and methods for determining, managing, and/or controlling excess hydrogen flow in a system comprising a fuel cell or fuel cell stack and ejector based on the internal state of the ejector.

IPC Classes  ?

  • H01M 8/04746 - PressureFlow
  • H01M 8/0438 - PressureAmbient pressureFlow
  • H01M 8/0432 - TemperatureAmbient temperature
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants

52.

SYSTEMS AND METHODS TO MEASURE OR CONTROL FUEL CELL STACK EXCESS HYDROGEN FLOW

      
Application Number 17898188
Status Pending
Filing Date 2022-08-29
First Publication Date 2023-03-16
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Forte, Paolo
  • Tripathi, Sumit
  • Van Den Bosch, Frank
  • Teene, Eero

Abstract

The present disclosure generally relates to systems and methods for determining, managing, and/or controlling excess hydrogen flow in a system comprising a fuel cell or fuel cell stack.

IPC Classes  ?

  • H01M 8/04746 - PressureFlow
  • H01M 8/0438 - PressureAmbient pressureFlow
  • H01M 8/0432 - TemperatureAmbient temperature
  • H01M 8/247 - Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks

53.

SYSTEMS AND METHODS TO MEASURE OR CONTROL FUEL CELL STACK EXCESS HYDROGEN FLOW USING EJECTOR MIXING STATE

      
Document Number 03171314
Status Pending
Filing Date 2022-08-26
Open to Public Date 2023-03-10
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard
  • Forte, Paolo
  • Tripathi, Sumit

Abstract

The present disclosure generally relates to systems and methods for determining, managing, and/or controlling excess hydrogen flow in a system comprising a fuel cell or fuel cell stack and ejector based on the internal state of the ejector.

IPC Classes  ?

54.

SYSTEMS AND METHODS TO MEASURE OR CONTROL FUEL CELL STACK EXCESS HYDROGEN FLOW

      
Document Number 03176670
Status Pending
Filing Date 2022-09-08
Open to Public Date 2023-03-10
Owner
  • CUMMINS, INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Forte, Paolo
  • Tripathi, Sumit
  • Van Den Bosch, Frank
  • Teene, Eero

Abstract

The present disclosure generally relates to systems and methods for determining, managing, and/or controlling excess hydrogen flow in a system comprising a fuel cell or fuel cell stack.

IPC Classes  ?

  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/0438 - PressureAmbient pressureFlow
  • H01M 8/24 - Grouping of fuel cells, e.g. stacking of fuel cells

55.

Fuel cell systems with series-connected subsystems

      
Application Number 17823229
Grant Number 11757117
Status In Force
Filing Date 2022-08-30
First Publication Date 2023-03-09
Grant Date 2023-09-12
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Zaag, Nader
  • Forte, Paolo
  • Böhm, Dennis
  • Poon, John Yui Ki

Abstract

A system includes a fuel cell engine, a plurality of switching devices, and a controller. The fuel cell engine includes a plurality of fuel cell modules connected in series as a fuel cell string, and then a plurality of these strings connected in parallel. The switching device(s) are electrically coupled to bypass when required each module(s) and or disconnect each string(s). The decision whether a module(s) and/or string(s) are bypassed, disconnected, or left to operate is based on a sensory feedback that is input into the finite state machine and fault management process that are embedded within the fuel cell controller. The bypassing scheme at the module level is handled in a manner such that the remaining modules within a series string can provide continuous, uninterrupted flow of current to the end application.

IPC Classes  ?

  • H01M 8/04955 - Shut-off or shut-down of fuel cells
  • B60L 50/72 - Constructional details of fuel cells specially adapted for electric vehicles
  • B60L 58/30 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
  • H01M 8/04537 - Electric variables
  • H01M 8/24 - Grouping of fuel cells, e.g. stacking of fuel cells
  • B60L 58/40 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells

56.

SYSTEM AND METHOD FOR CONTROLLING VOLTAGE OF FUEL CELL

      
Application Number 17953153
Status Pending
Filing Date 2022-09-26
First Publication Date 2023-03-02
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Joos, Nathaniel Ian
  • Forte, Paolo

Abstract

This specification describes a system and method for controlling the voltage produced by a fuel cell. The system involves providing a bypass line between an air exhaust from the fuel cell and an air inlet of the fuel cell. At least one controllable device is configured to allow the flow rate through the bypass line to be altered. A controller is provided to control the controllable device. The method involves varying the rate of recirculation of air exhaust to air inlet so as to provide a desired change in fuel cell voltage.

IPC Classes  ?

  • H01M 8/04858 - Electric variables
  • H01M 8/04537 - Electric variables
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/04746 - PressureFlow
  • H01M 8/0432 - TemperatureAmbient temperature
  • H01M 16/00 - Structural combinations of different types of electrochemical generators
  • A62C 3/08 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
  • B64D 37/32 - Safety measures not otherwise provided for, e.g. preventing explosive conditions

57.

SYSTEMS AND METHODS FOR VENTILATING A FUEL CELL ENCLOSURE

      
Application Number 17888201
Status Pending
Filing Date 2022-08-15
First Publication Date 2023-03-02
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Rizzi, Justin
  • Forte, Paolo

Abstract

The present disclosure relates to systems and methods for efficiently ventilating hydrogen from a fuel cell enclosure.

IPC Classes  ?

  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/2475 - Enclosures, casings or containers of fuel cell stacks
  • H01M 8/04014 - Heat exchange using gaseous fluidsHeat exchange by combustion of reactants
  • H01M 8/0662 - Treatment of gaseous reactants or gaseous residues, e.g. cleaning

58.

SYSTEMS AND METHODS FOR VENTILATING A FUEL CELL ENCLOSURE

      
Document Number 03170862
Status Pending
Filing Date 2022-08-19
Open to Public Date 2023-02-24
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Rizzi, Justin
  • Forte, Paolo

Abstract

The present disclosure relates to systems and methods for efficiently ventilating hydrogen from a fuel cell enclosure.

IPC Classes  ?

  • H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
  • H01M 8/04791 - ConcentrationDensity

59.

Thermal management system and method of positioning and adjusting coolant flow for stationary vehicle fuel cell applications

      
Application Number 17815845
Grant Number 11611089
Status In Force
Filing Date 2022-07-28
First Publication Date 2023-02-09
Grant Date 2023-03-21
Owner Hydrogenics Corporation (Canada)
Inventor
  • Pubrat, David
  • Wajda, Tomasz
  • Hill, Andrew
  • Cecaric, Predrag

Abstract

The present disclosure relates to a thermal management system and method of adjusting and/or reversing coolant flow of a fuel cell system during stationary applications.

IPC Classes  ?

  • H01M 8/04007 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
  • B60L 58/33 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by cooling
  • H01M 8/04313 - Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variablesProcesses for controlling fuel cells or fuel cell systems characterised by the detection or assessment of failure or abnormal function
  • B60L 50/72 - Constructional details of fuel cells specially adapted for electric vehicles

60.

DILUTION CIRCUITRY FOR FUEL CELL VEHICLES WITH COMBINED FUEL CELL EXHAUST SYSTEMS

      
Application Number CA2022051133
Publication Number 2023/004500
Status In Force
Filing Date 2022-07-20
Publication Date 2023-02-02
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Zaag, Nader
  • Sorbera, Sonia

Abstract

A method and system includes operating an air blower at an inlet of the fuel cell stack such that a portion of hydrogen in a combined exhaust of a fuel cell system, in all operating conditions of the fuel cell stack, is less than a predefined threshold.

IPC Classes  ?

61.

MULTI-EJECTOR FUEL CELL SYSTEM CONFIGURATIONS

      
Application Number 17670259
Status Pending
Filing Date 2022-02-11
First Publication Date 2022-12-29
Owner
  • CUMMINS INC. (USA)
  • Hydrogenics Corporation (Canada)
Inventor
  • Ancimer, Richard
  • Teene, Eero
  • Forte, Paolo

Abstract

The present disclosure generally relates to systems and methods comprising more than one venturi or ejector with a fuel cell or fuel cell stack.

IPC Classes  ?

  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/04082 - Arrangements for control of reactant parameters, e.g. pressure or concentration

62.

SYSTEMS AND METHODS FOR REDUCING COSTS AND PARASITIC LOADS WHEN USING AN EJECTOR WITH A FUEL CELL

      
Application Number US2022034150
Publication Number 2022/271584
Status In Force
Filing Date 2022-06-20
Publication Date 2022-12-29
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Teene, Eero
  • Forte, Paolo

Abstract

The present disclosure generally relates to systems and methods for optimizing the use of a venturi or an ejector and reducing costs and parasitic loads associated with using the venturi or an ejector with a recirculation pump or blower in a fuel cell, fuel cell stack, and/or fuel cell system.

IPC Classes  ?

63.

MULTI-EJECTOR FUEL CELL CONFIGURATIONS DURING TRANSIENT OPERATIONS

      
Application Number US2022034524
Publication Number 2022/271824
Status In Force
Filing Date 2022-06-22
Publication Date 2022-12-29
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Teene, Eero

Abstract

A fuel system includes a first ejector, a second ejector, an energy storage device, and an integrated controller. The integrated controller communicates with the energy storage device, the first ejector, and the second ejectors. The first ejector includes a first primary fuel, a first entrained fuel, a first maximum current density, and a first minimum current density. The second ejector includes a second primary fuel, a second entrained fuel, a second maximum current density, and a second minimum current density. The fuel cell system operates in a transient lag state.

IPC Classes  ?

  • H01M 8/04298 - Processes for controlling fuel cells or fuel cell systems
  • H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
  • H01M 8/04082 - Arrangements for control of reactant parameters, e.g. pressure or concentration
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/043 - Processes for controlling fuel cells or fuel cell systems applied during specific periods
  • H01M 8/04303 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down

64.

SYSTEMS AND METHODS FOR OPTIMIZING AN EJECTOR DESIGN TO INCREASE OPERATING RANGE

      
Application Number US2022034526
Publication Number 2022/271826
Status In Force
Filing Date 2022-06-22
Publication Date 2022-12-29
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Teene, Eero

Abstract

The present disclosure generally relates to systems and methods for increasing the operating range of a venturi or an ejector in a fuel cell system by optimizing and/or balancing fuel supply limits and ranges with operating requirements of the fuel cell, stack, or system by optimizing the design geometry of the venturi or an ejector.

IPC Classes  ?

  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/04992 - Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
  • F17D 1/00 - Pipe-line systems
  • F17D 1/02 - Pipe-line systems for gases or vapours
  • F17D 1/04 - Pipe-line systems for gases or vapours for distribution of gas
  • H01M 8/00 - Fuel cellsManufacture thereof
  • H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
  • H01M 8/04298 - Processes for controlling fuel cells or fuel cell systems
  • H01M 8/04694 - Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
  • H01M 8/04746 - PressureFlow

65.

OPERATING SYSTEMS AND METHODS OF USING A PROPORTIONAL CONTROL VALVE IN A FUEL CELL SYSTEM

      
Application Number 17837721
Status Pending
Filing Date 2022-06-10
First Publication Date 2022-12-29
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Teene, Eero
  • Forte, Paolo
  • Tripathi, Sumit

Abstract

The present disclosure relates to systems and methods of using a proportional control valve in a fuel cell stack system. The fuel cell stack system, may comprise a fuel cell stack including an anode with an anode inlet and an anode outlet, and a cathode with a cathode inlet and a cathode outlet, and a control valve, which controls the flow of a fuel into the anode. The flow of fuel may be based on a pressure differential measured across any two of the anode inlet, the anode outlet, the cathode inlet, and the cathode outlet.

IPC Classes  ?

66.

FUEL CELL SYSTEMS AND METHODS FOR INTEGRATING AND SIZING A RECIRCULATION BLOWER AND AN EJECTOR

      
Application Number US2022034530
Publication Number 2022/271830
Status In Force
Filing Date 2022-06-22
Publication Date 2022-12-29
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Teene, Eero
  • Forte, Paolo
  • Tripathi, Sumit

Abstract

The present disclosure generally relates to fuel cell systems and methods for sizing and/or integrating a recirculation blower with a venturi or an ejector in a fuel cell or fuel cell stack.

IPC Classes  ?

  • H01M 8/04746 - PressureFlow
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
  • H01M 8/00 - Fuel cellsManufacture thereof
  • H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids

67.

FASTENERLESS FUEL CELL STACK ENCLOSURE

      
Application Number 17833482
Status Pending
Filing Date 2022-06-06
First Publication Date 2022-12-15
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Hill, Andrew
  • Gorelik, Michail
  • Pubrat, David

Abstract

The present disclosure generally relates to a fuel cell stack enclosure adapted to enclose a fuel cell stack The fuel cell stack enclosure includes an upper cover, a lower cover, and one or more clamping means. The upper cover encloses an upper section of the fuel cell stack and the lower cover encloses a lower section of the fuel cell stack.

IPC Classes  ?

  • H01M 8/2475 - Enclosures, casings or containers of fuel cell stacks
  • H01M 8/2404 - Processes or apparatus for grouping fuel cells

68.

A FASTENERLESS FUEL CELL STACK ENCLOSURE

      
Document Number 03162564
Status In Force
Filing Date 2022-06-10
Open to Public Date 2022-12-15
Grant Date 2024-02-13
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Hill, Andrew
  • Gorelik, Michail
  • Pubrat, David

Abstract

The present disclosure generally relates to a fuel cell stack enclosure adapted to enclose a fuel cell stack The fuel cell stack enclosure includes an upper cover, a lower cover, and one or more clamping means. The upper cover encloses an upper section of the fuel cell stack and the lower cover encloses a lower section of the fuel cell stack.

IPC Classes  ?

  • H01M 8/2475 - Enclosures, casings or containers of fuel cell stacks

69.

VENTING OF SEALED FUEL CELL ENCLOSURE

      
Document Number 03161837
Status In Force
Filing Date 2022-06-07
Open to Public Date 2022-12-08
Grant Date 2023-11-21
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Epp, Bryn
  • Hill, Andrew
  • Zaag, Nader
  • Pubrat, David
  • Sorbera, Sonia
  • Krishnathas, Myen
  • Bencak, Robert

Abstract

A venting system includes a housing and an air intake manifold. The housing receives a fuel cell stack, and the air intake manifold extends along the fuel cell stack. The air intake manifold directs a flow of air to the fuel cell stack, and is disposed adjacent to and in contact with the fuel cell stack.

IPC Classes  ?

  • H01M 8/2485 - Arrangements for sealing external manifoldsArrangements for mounting external manifolds around a stack
  • H01M 8/0662 - Treatment of gaseous reactants or gaseous residues, e.g. cleaning
  • H01M 8/2475 - Enclosures, casings or containers of fuel cell stacks

70.

VENTING OF SEALED FUEL CELL ENCLOSURE

      
Application Number 17833418
Status Pending
Filing Date 2022-06-06
First Publication Date 2022-12-08
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Epp, Bryn
  • Hill, Andrew
  • Zaag, Nader
  • Pubrat, David
  • Sorbera, Sonia
  • Krishnathas, Myen
  • Bencak, Robert

Abstract

A venting system includes a housing and an air intake manifold. The housing receives a fuel cell stack, and the air intake manifold extends along the fuel cell stack. The air intake manifold directs a flow of air to the fuel cell stack, and is disposed adjacent to and in contact with the fuel cell stack.

IPC Classes  ?

  • H01M 8/2485 - Arrangements for sealing external manifoldsArrangements for mounting external manifolds around a stack
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants

71.

NON-UNIFORM REACTANT CHANNELS IN BIPOLAR PLATES FOR FUEL CELLS

      
Application Number CA2022050897
Publication Number 2022/251975
Status In Force
Filing Date 2022-06-03
Publication Date 2022-12-08
Owner HYDROGENICS CORPORATION (Canada)
Inventor Ranieri, Salvatore

Abstract

The present disclosure generally relates to a fuel cell having a membrane electrode assembly, a gas diffusion layer, and a bipolar plate. The gas diffusion layer is adjacent a side of the membrane electrode assembly. The bipolar plate is adjacent the gas diffusion layer. The bipolar plate includes more than one anode channels and more than one cathode channels.

IPC Classes  ?

  • H01M 8/0265 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant the reactant or coolant channels having varying cross sections
  • H01M 8/1004 - Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]

72.

Fuel cell electrode with patterned microporous layer and methods of fabricating the same

      
Application Number 17666269
Grant Number 11764365
Status In Force
Filing Date 2022-02-07
First Publication Date 2022-11-03
Grant Date 2023-09-19
Owner HYDROGENICS CORPORATIONS (Canada)
Inventor
  • Shrivastava, Udit N.
  • Harinath, Arvind V.
  • Eastcott, Jennie

Abstract

The present disclosure generally relates to a fuel cell electrode having a patterned microporous layer and method of fabricating the same.

IPC Classes  ?

  • H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
  • H01M 4/88 - Processes of manufacture

73.

FUEL CELL POWER MODULE AND AIR HANDLING SYSTEM TO ENABLE ROBUST EXHAUST ENERGY EXTRACTION FOR HIGH ALTITUDE OPERATIONS

      
Application Number 17764782
Status Pending
Filing Date 2020-11-04
First Publication Date 2022-10-27
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Ranieri, Salvatore
  • Joos, Nathaniel Ian

Abstract

The subject matter described herein generally relates to a fuel cell power module and air handling system and methods of operating such a system to enable robust exhaust energy extraction for high altitude.

IPC Classes  ?

  • H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
  • H01M 8/04014 - Heat exchange using gaseous fluidsHeat exchange by combustion of reactants
  • H01M 8/1018 - Polymeric electrolyte materials
  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying

74.

Methods and systems for managing and controlling emissions in a hybrid system

      
Application Number 17592222
Grant Number 12065128
Status In Force
Filing Date 2022-02-03
First Publication Date 2022-09-29
Grant Date 2024-08-20
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Beinborn, Aaron William
  • Genter, David P.
  • Joos, Nathaniel Ian
  • Koti, Archit
  • Ji, Guangji

Abstract

The present disclosure generally relates to a system and methods for managing and controlling emissions produced by a vehicle and/or powertrain which includes one or more power sources selected from a fuel cell, a fuel cell stack, a battery, and combinations thereof, a processor, one or more inputs, a controller, and one or more emission control devices.

IPC Classes  ?

  • B60W 20/16 - Control strategies specially adapted for achieving a particular effect for reducing engine exhaust emissions
  • B60W 10/26 - Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
  • B60W 10/28 - Conjoint control of vehicle sub-units of different type or different function including control of fuel cells

75.

Electrolyser and energy system

      
Application Number 17526721
Grant Number 11761103
Status In Force
Filing Date 2021-11-15
First Publication Date 2022-04-21
Grant Date 2023-09-19
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Joos, Nathaniel Ian
  • Cargnelli, Joseph

Abstract

An electrolyser operates within an energy system, for example to provide grid services, energy storage or fuel, or to produce hydrogen from electricity produced from renewable resources. The electrolyser may be configured to operate at frequently or quickly varying rates of electricity consumption or to operate at a specified power consumption.

IPC Classes  ?

  • C25B 15/02 - Process control or regulation
  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 9/01 - Electrolytic cells characterised by shape or form
  • G06Q 50/06 - Energy or water supply
  • G06Q 30/04 - Billing or invoicing
  • C25B 9/70 - Assemblies comprising two or more cells
  • C25B 9/17 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof

76.

Fuel cell start up method

      
Application Number 17407808
Grant Number 11804611
Status In Force
Filing Date 2021-08-20
First Publication Date 2021-12-09
Grant Date 2023-10-31
Owner HYDROGENICS CORPORATION (Canada)
Inventor Joos, Nathaniel Ian

Abstract

A fuel cell module is configured or operated, or both, such that after a shut down procedure a fuel cell stack is discharged and has its cathode electrodes at least partially blanketed with nitrogen during at least some periods of time. If the fuel cell module is restarted in this condition, electrochemical reactions are limited and do not quickly re-charge the fuel cell stack. To decrease start up time, air is moved into the cathode electrodes before the stack is re-charged. The air may be provided by a pump, fan or blower driven by a battery or by the flow or pressure of stored hydrogen. For example, an additional fan or an operating blower may be driven by a battery until the fuel cell stack is able to supply sufficient current to drive the operating blower for normal operation.

IPC Classes  ?

  • H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
  • H01M 8/04303 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/043 - Processes for controlling fuel cells or fuel cell systems applied during specific periods
  • H01M 8/04746 - PressureFlow
  • H01M 8/04225 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during start-up
  • H01M 8/04858 - Electric variables
  • H01M 8/04955 - Shut-off or shut-down of fuel cells
  • H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
  • H01M 16/00 - Structural combinations of different types of electrochemical generators
  • H01M 8/10 - Fuel cells with solid electrolytes

77.

Fuel cell sub-assembly and method of making it

      
Application Number 17176067
Grant Number 12100869
Status In Force
Filing Date 2021-02-15
First Publication Date 2021-06-03
Grant Date 2024-09-24
Owner HYDROGENICS CORPORATION (Canada)
Inventor Frank, David

Abstract

A sub-assembly for an electrochemical stack, such as a PEM fuel cell stack, has a bipolar plate with sealing material extending from its upper face, around the edge of the bipolar plate, and onto its lower face. The bipolar plate is preferably a combination of an anode plate and a cathode plate defining an internal coolant flow field and bonded together by sealing material which also provides a seal around the coolant flow field. All of the sealing material in the sub-assembly may be one contiguous mass. To make the sub-assembly, anode and cathode plates are loaded into a mold. Liquid sealing material is injected into the mold and fills a gap between the edge of the plates, and portions of the outer faces of the plates, and the mold. In a stack, sub-assemblies are separated by MEAs which at least partially overlap the sealing material on their faces.

IPC Classes  ?

  • H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
  • H01M 8/0273 - Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
  • H01M 8/0286 - Processes for forming seals
  • H01M 8/1004 - Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
  • H01M 8/241 - Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
  • H01M 8/2483 - Details of groupings of fuel cells characterised by internal manifolds

78.

FUEL CELL POWER MODULE AND AIR HANDLING SYSTEM TO ENABLE ROBUST EXHAUST ENERGY EXTRACTION FOR HIGH ALTITUDE OPERATIONS

      
Document Number 03152824
Status Pending
Filing Date 2020-11-04
Open to Public Date 2021-05-14
Owner
  • CUMMINS INC. (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Ranieri, Salvatore
  • Joos, Nathaniel Ian

Abstract

The subject matter described herein generally relates to a fuel cell power module and air handling system and methods of operating such a system to enable robust exhaust energy extraction for high altitude.

IPC Classes  ?

  • H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids

79.

FUEL CELL POWER MODULE AND AIR HANDLING SYSTEM TO ENABLE ROBUST EXHAUST ENERGY EXTRACTION FOR HIGH ALTITUDE OPERATIONS

      
Application Number US2020058895
Publication Number 2021/092021
Status In Force
Filing Date 2020-11-04
Publication Date 2021-05-14
Owner
  • CUMMINS ENTERPRISE LLC (USA)
  • HYDROGENICS CORPORATION (Canada)
Inventor
  • Ancimer, Richard J.
  • Ranieri, Salvatore
  • Joos, Nathaniel Ian

Abstract

The subject matter described herein generally relates to a fuel cell power module and air handling system and methods of operating such a system to enable robust exhaust energy extraction for high altitude.

IPC Classes  ?

  • H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids

80.

Closed anode fuel cell startup method

      
Application Number 17033028
Grant Number 11411232
Status In Force
Filing Date 2020-09-25
First Publication Date 2021-01-21
Grant Date 2022-08-09
Owner Hydrogenics Corporation (Canada)
Inventor
  • Joos, Nathaniel Ian
  • Forte, Paolo
  • Kim, Jin

Abstract

A process for starting a PEM fuel cell module includes blowing air through the cathode side of the module using external power. An amount hydrogen is released into the anode side of the module under a pressure greater than the pressure of the air on the cathode side, while the anode is otherwise closed. Cell voltages in the module are monitored for the appearance of a charged state sufficient to start the module. When the charged state is observed, the module is converted to a running state.

IPC Classes  ?

  • H01M 8/00 - Fuel cellsManufacture thereof
  • H01M 8/04225 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during start-up
  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
  • H01M 8/04537 - Electric variables
  • H01M 8/04746 - PressureFlow
  • H01M 8/04858 - Electric variables

81.

Fuel cell start up method

      
Application Number 16912544
Grant Number 11495807
Status In Force
Filing Date 2020-06-25
First Publication Date 2020-10-15
Grant Date 2022-11-08
Owner Hydrogenics Corporation (Canada)
Inventor Joos, Nathaniel Ian

Abstract

A fuel cell module is configured or operated, or both, such that after a shut down procedure a fuel cell stack is discharged and has its cathode electrodes at least partially blanketed with nitrogen during at least some periods of time. If the fuel cell module is restarted in this condition, electrochemical reactions are limited and do not quickly re-charge the fuel cell stack. To decrease start up time, air is moved into the cathode electrodes before the stack is re-charged. The air may be provided by a pump, fan or blower driven by a battery or by the flow or pressure of stored hydrogen. For example, an additional fan or an operating blower may be driven by a battery until the fuel cell stack is able to supply sufficient current to drive the operating blower for normal operation.

IPC Classes  ?

  • H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
  • H01M 8/04303 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/043 - Processes for controlling fuel cells or fuel cell systems applied during specific periods
  • H01M 8/04746 - PressureFlow
  • H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
  • H01M 8/04225 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during start-up
  • H01M 8/04858 - Electric variables
  • H01M 8/04955 - Shut-off or shut-down of fuel cells
  • H01M 8/10 - Fuel cells with solid electrolytes
  • H01M 16/00 - Structural combinations of different types of electrochemical generators

82.

System and method for controlling voltage of fuel cell

      
Application Number 16884453
Grant Number 11456470
Status In Force
Filing Date 2020-05-27
First Publication Date 2020-09-10
Grant Date 2022-09-27
Owner Hydrogenics Corporation (Canada)
Inventor
  • Joos, Nathaniel Ian
  • Forte, Paolo

Abstract

This specification describes a system and method for controlling the voltage produced by a fuel cell. The system involves providing a bypass line between an air exhaust from the fuel cell and an air inlet of the fuel cell. At least one controllable device is configured to allow the flow rate through the bypass line to be altered. A controller is provided to control the controllable device. The method involves varying the rate of recirculation of air exhaust to air inlet so as to provide a desired change in fuel cell voltage.

IPC Classes  ?

  • H01M 16/00 - Structural combinations of different types of electrochemical generators
  • H01M 8/0432 - TemperatureAmbient temperature
  • H01M 8/04537 - Electric variables
  • H01M 8/04746 - PressureFlow
  • H01M 8/04858 - Electric variables
  • A62C 3/08 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
  • B64D 37/32 - Safety measures not otherwise provided for, e.g. preventing explosive conditions
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants

83.

High or differential pressure electrolysis cell

      
Application Number 16775920
Grant Number 11479866
Status In Force
Filing Date 2020-01-29
First Publication Date 2020-06-04
Grant Date 2022-10-25
Owner Hydrogenics Corporation (Canada)
Inventor
  • Abouatallah, Rami Michel
  • Wang, Rainey Yu
  • Joos, Nathaniel Ian

Abstract

An electrochemical cell has a membrane located between two flow field plates. On a first side of the membrane, there is a porous support surrounded by a seal between the membrane and the flow field plate. There is a gap between the porous support and the seal at the surface of the membrane. On a second side of the membrane, there is a seal between the membrane and the flow field plate located inside of the gap in plan view. The electrochemical cell is useful, for example, in high pressure or differential pressure electrolysis in which the second side of the membrane will be consistently exposed to a higher pressure than the first side of the membrane.

IPC Classes  ?

  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 9/05 - Pressure cells
  • C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
  • H01M 8/0273 - Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
  • H01M 8/023 - Porous and characterised by the material
  • H01M 8/10 - Fuel cells with solid electrolytes
  • C25B 9/19 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms
  • C25B 9/73 - Assemblies comprising two or more cells of the filter-press type

84.

Closed anode fuel cell startup method

      
Application Number 16467660
Grant Number 11362349
Status In Force
Filing Date 2017-12-20
First Publication Date 2020-03-05
Grant Date 2022-06-14
Owner Hydrogenics Corporation (Canada)
Inventor
  • Joos, Nathaniel Ian
  • Forte, Paolo
  • Kim, Jin

Abstract

A process for starting a PEM fuel cell module includes blowing air through the cathode side of the module using external power. An amount hydrogen is released into the anode side of the module under a pressure greater than the pressure of the air on the cathode side, while the anode is otherwise closed. Cell voltages in the module are monitored for the appearance of a charged state sufficient to start the module. When the charged state is observed, the module is converted to a running state.

IPC Classes  ?

  • H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
  • H01M 8/04225 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during start-up
  • H01M 8/04746 - PressureFlow
  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
  • H01M 8/04537 - Electric variables
  • H01M 8/04858 - Electric variables

85.

Fuel cell start up method

      
Application Number 16422279
Grant Number 11101477
Status In Force
Filing Date 2019-05-24
First Publication Date 2019-12-05
Grant Date 2021-08-24
Owner HYDROGENICS CORPORATION (Canada)
Inventor Joos, Nathaniel Ian

Abstract

A fuel cell module is configured or operated, or both, such that after a shut down procedure a fuel cell stack is discharged and has its cathode electrodes at least partially blanketed with nitrogen during at least some periods of time. If the fuel cell module is restarted in this condition, electrochemical reactions are limited and do not quickly re-charge the fuel cell stack. To decrease start up time, air is moved into the cathode electrodes before the stack is re-charged. The air may be provided by a pump, fan or blower driven by a battery or by the flow or pressure of stored hydrogen. For example, an additional fan or an operating blower may be driven by a battery until the fuel cell stack is able to supply sufficient current to drive the operating blower for normal operation.

IPC Classes  ?

  • H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
  • H01M 8/04303 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/043 - Processes for controlling fuel cells or fuel cell systems applied during specific periods
  • H01M 8/04746 - PressureFlow
  • H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
  • H01M 8/04225 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during start-up
  • H01M 8/04828 - HumidityWater content
  • H01M 8/04955 - Shut-off or shut-down of fuel cells
  • H01M 16/00 - Structural combinations of different types of electrochemical generators
  • H01M 8/1018 - Polymeric electrolyte materials

86.

Fast starting fuel cell

      
Application Number 16214937
Grant Number 11309556
Status In Force
Filing Date 2018-12-10
First Publication Date 2019-08-15
Grant Date 2022-04-19
Owner HYDROGENICS CORPORATION (Canada)
Inventor Forte, Paolo

Abstract

An electrical power supply system has a fuel cell module and a battery. The fuel cell can be selectively connected to the battery system through a diode. The system preferably also has a current sensor and a controller adapted to close a contactor in a by-pass circuit around the diode after sensing a current flowing from the fuel cell through the diode. The system may also have a resistor and a contactor in another by-pass circuit around the diode. In a start-up method, a first contactor is closed to connect the fuel cell in parallel with the battery through the diode and one or more reactant pumps for the fuel cell are turned on. A current sensor is monitored for a signal indicating current flow through the diode. After a current is indicated, a by-pass circuit is provided around the diode.

IPC Classes  ?

  • H01M 8/04225 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during start-up
  • H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
  • H01M 8/04082 - Arrangements for control of reactant parameters, e.g. pressure or concentration

87.

Electrolyser and energy system

      
Application Number 16246800
Grant Number 11268201
Status In Force
Filing Date 2019-01-14
First Publication Date 2019-08-15
Grant Date 2022-03-08
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Joos, Nathaniel Ian
  • Cargnelli, Joseph

Abstract

An electrolyser operates within an energy system, for example to provide grid services, energy storage or fuel, or to produce hydrogen from electricity produced from renewable resources. The electrolyser may be configured to operate at frequently or quickly varying rates of electricity consumption or to operate at a specified power consumption.

IPC Classes  ?

  • C25B 15/02 - Process control or regulation
  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • G06Q 50/06 - Energy or water supply
  • G06Q 30/04 - Billing or invoicing
  • C25B 9/17 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof
  • C25B 9/70 - Assemblies comprising two or more cells

88.

DISTRIBUTED POWER AND ENERGY TRAIN

      
Application Number CA2018051376
Publication Number 2019/084680
Status In Force
Filing Date 2018-10-30
Publication Date 2019-05-09
Owner HYDROGENICS CORPORATION (Canada)
Inventor Wilson, Daryl Clayton Francis

Abstract

A fuel cell power module powers an autonomous electric train. The fuel cell power module is located in one or more locomotives of the train. A locomotive may also have one or more of hydrogen storage, a traction motor, and a battery. The train also has a plurality of coaches each containing a traction motor, and optionally also a battery. The coaches do not have fuel cell power modules or other fuel based sources of energy. The traction motors in the coaches receive electrical power from the fuel cell power module in the locomotive. Energy is recovered by regenerative breaking in the coaches and stored in batteries in the coaches or the locomotive or both. The train can be operated independent of a catenary system.

IPC Classes  ?

  • B61C 3/00 - Electric locomotives or railcars
  • B60L 15/32 - Control or regulation of multiple-unit electrically-propelled vehicles
  • B60L 15/42 - Adaptation of control equipment on vehicle for actuation from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
  • B61C 17/06 - Power storing devices

89.

Flow fields for electrochemical cell

      
Application Number 16198832
Grant Number 10847813
Status In Force
Filing Date 2018-11-22
First Publication Date 2019-03-28
Grant Date 2020-11-24
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Wang, Rainey Yu
  • Abouatallah, Rami Michel
  • Joos, Nathaniel Ian

Abstract

An electrochemical cell has first and second flow fields on opposite sides of a membrane. The first flow field has a set of generally linear channels in which the flow of a fluid in the field is contained between parallel elongate ridges. The second flow field is defined by a set of parallel discontinuous ridges. Preferably most ridge segments in the second flow field are oblique, for example perpendicular, to and overlap with two or more ridges of the first flow field. The flow fields may be used in, for example, water electrolysis cells including high or differential pressure polymer electrolyte membrane (PEM) electrolysis cells.

IPC Classes  ?

  • H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
  • C25B 1/12 - Electrolytic production of inorganic compounds or non-metals of hydrogen or oxygen by electrolysis of water in pressure cells
  • C25B 9/08 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms

90.

Fuel cell sub-assembly and method of making it

      
Application Number 16190279
Grant Number 10923739
Status In Force
Filing Date 2018-11-14
First Publication Date 2019-03-14
Grant Date 2021-02-16
Owner HYDROGENICS CORPORATION (Canada)
Inventor Frank, David

Abstract

A sub-assembly for an electrochemical stack, such as a PEM fuel cell stack, has a bipolar plate with sealing material extending from its upper face, around the edge of the bipolar plate, and onto its lower face. The bipolar plate is preferably a combination of an anode plate and a cathode plate defining an internal coolant flow field and bonded together by sealing material which also provides a seal around the coolant flow field. All of the sealing material in the sub-assembly may be one contiguous mass. To make the sub-assembly, anode and cathode plates are loaded into a mold. Liquid sealing material is injected into the mold and fills a gap between the edge of the plates, and portions of the outer faces of the plates, and the mold. In a stack, sub-assemblies are separated by MEAs which at least partially overlap the sealing material on their faces.

IPC Classes  ?

  • H01M 8/0273 - Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
  • H01M 8/0297 - Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
  • H01M 8/2483 - Details of groupings of fuel cells characterised by internal manifolds
  • H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
  • H01M 8/0286 - Processes for forming seals
  • H01M 8/241 - Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
  • H01M 8/1004 - Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]

91.

CLOSED ANODE FUEL CELL STARTUP METHOD

      
Document Number 03046272
Status Pending
Filing Date 2017-12-20
Open to Public Date 2018-06-28
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Joos, Nathaniel Ian
  • Forte, Paolo
  • Kim, Jin

Abstract

A process for starting a PEM fuel cell module includes blowing air through the cathode side of the module using external power. An amount hydrogen is released into the anode side of the module under a pressure greater than the pressure of the air on the cathode side, while the anode is otherwise closed. Cell voltages in the module are monitored for the appearance of a charged state sufficient to start the module. When the charged state is observed, the module is converted to a running state.

IPC Classes  ?

  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/04225 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during start-up
  • H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
  • H01M 8/04746 - PressureFlow

92.

CLOSED ANODE FUEL CELL STARTUP METHOD

      
Application Number CA2017051553
Publication Number 2018/112630
Status In Force
Filing Date 2017-12-20
Publication Date 2018-06-28
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Joos, Nathaniel Ian
  • Forte, Paolo
  • Kim, Jin

Abstract

A process for starting a PEM fuel cell module includes blowing air through the cathode side of the module using external power. An amount hydrogen is released into the anode side of the module under a pressure greater than the pressure of the air on the cathode side, while the anode is otherwise closed. Cell voltages in the module are monitored for the appearance of a charged state sufficient to start the module. When the charged state is observed, the module is converted to a running state.

IPC Classes  ?

  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/04225 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during start-up
  • H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
  • H01M 8/04746 - PressureFlow

93.

Closed anode fuel cell startup method

      
Application Number 15848906
Grant Number 10930950
Status In Force
Filing Date 2017-12-20
First Publication Date 2018-06-21
Grant Date 2021-02-23
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Joos, Nathaniel Ian
  • Forte, Paolo
  • Kim, Jin

Abstract

A process for starting a PEM fuel cell module includes blowing air through the cathode side of the module using external power. An amount hydrogen is released into the anode side of the module under a pressure greater than the pressure of the air on the cathode side, while the anode is otherwise closed. Cell voltages in the module are monitored for the appearance of a charged state sufficient to start the module. When the charged state is observed, the module is converted to a running state.

IPC Classes  ?

  • H01M 8/00 - Fuel cellsManufacture thereof
  • H01M 8/04225 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during start-up
  • H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
  • H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
  • H01M 8/04537 - Electric variables
  • H01M 8/04746 - PressureFlow
  • H01M 8/04858 - Electric variables

94.

FLOW FIELDS FOR ELECTROCHEMICAL CELL

      
Application Number CA2016051335
Publication Number 2017/083968
Status In Force
Filing Date 2016-11-16
Publication Date 2017-05-26
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Wang, Rainey Yu
  • Abouatallah, Rami Michel
  • Joos, Nathaniel Ian

Abstract

An electrochemical cell has first and second flow fields on opposite sides of a membrane. The first flow field has a set of generally linear channels in which the flow of a fluid in the field is contained between parallel elongate ridges. The second flow field is defined by a set of parallel discontinuous ridges. Preferably most ridge segments in the second flow field are oblique, for example perpendicular, to and overlap with two or more ridges of the first flow field. The flow fields may be used in, for example, water electrolysis cells including high or differential pressure polymer electrolyte membrane (PEM) electrolysis cells.

IPC Classes  ?

  • C25B 13/02 - DiaphragmsSpacing elements characterised by shape or form
  • H01M 2/18 - Separators; Membranes; Diaphragms; Spacing elements characterised by the shape

95.

FLOW FIELDS FOR ELECTROCHEMICAL CELL

      
Document Number 03005121
Status In Force
Filing Date 2016-11-16
Open to Public Date 2017-05-26
Grant Date 2023-12-12
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Wang, Rainey Yu
  • Abouatallah, Rami Michel
  • Joos, Nathaniel Ian

Abstract

An electrochemical cell has first and second flow fields on opposite sides of a membrane. The first flow field has a set of generally linear channels in which the flow of a fluid in the field is contained between parallel elongate ridges. The second flow field is defined by a set of parallel discontinuous ridges. Preferably most ridge segments in the second flow field are oblique, for example perpendicular, to and overlap with two or more ridges of the first flow field. The flow fields may be used in, for example, water electrolysis cells including high or differential pressure polymer electrolyte membrane (PEM) electrolysis cells.

IPC Classes  ?

  • C25B 13/02 - DiaphragmsSpacing elements characterised by shape or form
  • H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant

96.

Flow fields for electrochemical cell

      
Application Number 15353162
Grant Number 10193164
Status In Force
Filing Date 2016-11-16
First Publication Date 2017-05-18
Grant Date 2019-01-29
Owner Hydrogenics Corporation (Canada)
Inventor
  • Wang, Rainey Yu
  • Abouatallah, Rami Michel
  • Joos, Nathaniel Ian

Abstract

An electrochemical cell has first and second flow fields on opposite sides of a membrane. The first flow field has a set of generally linear channels in which the flow of a fluid in the field is contained between parallel elongate ridges. The second flow field is defined by a set of parallel discontinuous ridges. Preferably most ridge segments in the second flow field are oblique, for example perpendicular, to and overlap with two or more ridges of the first flow field. The flow fields may be used in, for example, water electrolysis cells including high or differential pressure polymer electrolyte membrane (PEM) electrolysis cells.

IPC Classes  ?

  • H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant

97.

HIGH OR DIFFERENTIAL PRESSURE ELECTROLYSIS CELL

      
Document Number 03000151
Status In Force
Filing Date 2016-09-26
Open to Public Date 2017-04-06
Grant Date 2024-05-07
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Abouatallah, Rami Michel
  • Wang, Rainey Yu
  • Joos, Nathaniel Ian

Abstract

An electrochemical cell has a membrane located between two flow field plates. On a first side of the membrane, there is a porous support surrounded by a seal between the membrane and the flow field plate. There is a gap between the porous support and the seal at the surface of the membrane. On a second side of the membrane, there is a seal between the membrane and the flow field plate located inside of the gap in plan view. The electrochemical cell is useful, for example, in high pressure or differential pressure electrolysis in which the second side of the membrane will be consistently exposed to a higher pressure than the first side of the membrane.

IPC Classes  ?

98.

HIGH OR DIFFERENTIAL PRESSURE ELECTROLYSIS CELL

      
Application Number CA2016051126
Publication Number 2017/054074
Status In Force
Filing Date 2016-09-26
Publication Date 2017-04-06
Owner HYDROGENICS CORPORATION (Canada)
Inventor
  • Abouatallah, Rami Michel
  • Wang, Rainey Yu
  • Joos, Nathaniel Ian

Abstract

An electrochemical cell has a membrane located between two flow field plates. On a first side of the membrane, there is a porous support surrounded by a seal between the membrane and the flow field plate. There is a gap between the porous support and the seal at the surface of the membrane. On a second side of the membrane, there is a seal between the membrane and the flow field plate located inside of the gap in plan view. The electrochemical cell is useful, for example, in high pressure or differential pressure electrolysis in which the second side of the membrane will be consistently exposed to a higher pressure than the first side of the membrane.

IPC Classes  ?

  • C25B 9/10 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms including an ion-exchange membrane in or on which electrode material is embedded
  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 13/08 - DiaphragmsSpacing elements characterised by the material based on organic materials

99.

High or differential pressure electrolysis cell

      
Application Number 15276040
Grant Number 10590545
Status In Force
Filing Date 2016-09-26
First Publication Date 2017-03-30
Grant Date 2020-03-17
Owner HYDROGENICS CORPORATION (USA)
Inventor
  • Abouatallah, Rami Michel
  • Wang, Rainey Yu
  • Joos, Nathaniel Ian

Abstract

An electrochemical cell has a membrane located between two flow field plates. On a first side of the membrane, there is a porous support surrounded by a seal between the membrane and the flow field plate. There is a gap between the porous support and the seal at the surface of the membrane. On a second side of the membrane, there is a seal between the membrane and the flow field plate located inside of the gap in plan view. The electrochemical cell is useful, for example, in high pressure or differential pressure electrolysis in which the second side of the membrane will be consistently exposed to a higher pressure than the first side of the membrane.

IPC Classes  ?

  • C25B 1/12 - Electrolytic production of inorganic compounds or non-metals of hydrogen or oxygen by electrolysis of water in pressure cells
  • C25B 1/10 - Electrolytic production of inorganic compounds or non-metals of hydrogen or oxygen by electrolysis of water in diaphragm cells
  • H01M 8/0273 - Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
  • H01M 8/023 - Porous and characterised by the material
  • C25B 9/10 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms including an ion-exchange membrane in or on which electrode material is embedded
  • H01M 8/10 - Fuel cells with solid electrolytes
  • C25B 9/08 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms

100.

HYSTAT

      
Serial Number 87305319
Status Registered
Filing Date 2017-01-18
Registration Date 2020-04-21
Owner Hydrogenics Corporation (Canada)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 11 - Environmental control apparatus

Goods & Services

Electrolyzers, and parts and fittings therefor Hydrogen generators, and parts and fittings therefor; hydrogen generation equipment and components in the nature of refuellers, namely, hydrogen refueling stations
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