Ascend Elements, Inc.

United States of America

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New (last 4 weeks) 5
2026 July 5
2026 April 3
2026 (YTD) 12
2025 24
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IPC Class
H01M 10/54 - Reclaiming serviceable parts of waste accumulators 55
C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof 24
C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes 17
C22B 26/12 - Obtaining lithium 16
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy 15
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NICE Class
01 - Chemical and biological materials for industrial, scientific and agricultural use 20
39 - Transport, packaging, storage and travel services 18
40 - Treatment of materials; recycling, air and water treatment, 18
09 - Scientific and electric apparatus and instruments 14
42 - Scientific, technological and industrial services, research and design 14
Status
Pending 31
Registered / In Force 55

1.

PH MONITORING AND CONTROL FOR COPRECIPITATION OF CATHODE MATERIAL PRECURSORS

      
Application Number US2025061277
Publication Number 2026/147819
Status In Force
Filing Date 2025-12-24
Publication Date 2026-07-09
Owner ASCEND ELEMENTS, INC. (USA)
Inventor Pelsozy, Michael

Abstract

A recycling process for Lithium-ion (Li-ion) batteries employs a closely monitored co-precipitation reaction for precipitating cathode active material precursor (pCAM) in a comingled form of metal salts corresponding to the intended chemistry for the new battery. The coprecipitation relies on a controlled pH that assures a particle size, morphology and purity of the resulting precipitated pCAM. A combination of internal reactor pH sensing within the coprecipitation reactor along with external pH sensing to validate the sensed pH ensures a consistent target pH throughout the coprecipitation process, compensating for drift or sensor failure in view of the harsh reactor environment.

IPC Classes  ?

  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C01G 53/42 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
  • B09B 3/70 - Chemical treatment, e.g. pH adjustment or oxidation
  • B09B 101/16 - Batteries
  • H01M 4/02 - Electrodes composed of, or comprising, active material

2.

SELECTIVE COBALT EXTRACTION FROM NICKEL AND MANGANESE SOLUTIONS

      
Application Number 19003278
Status Pending
Filing Date 2024-12-27
First Publication Date 2026-07-02
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Duhayon, Christophe Henri Robert
  • Azizitorghabeh, Atefeh

Abstract

Methods of recovering nickel and manganese salts are disclosed. The method includes removing one or more impurities from an aqueous leach solution including cobalt, manganese, and nickel salts to produce a purified aqueous solution including the cobalt, manganese, and nickel salts. The method includes extracting the cobalt salt from the purified aqueous solution in a first liquid-liquid extraction step using an organic extractant to produce an aqueous raffinate solution including the nickel and manganese salts and a first loaded organic solution including the cobalt salt.

IPC Classes  ?

3.

SELECTIVE COBALT, MANGANESE AND NICKEL EXTRACTION FROM BATTERY RECYCLING LEACHATE SOLUTIONS

      
Application Number 19003642
Status Pending
Filing Date 2024-12-27
First Publication Date 2026-07-02
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Duhayon, Christophe Henri Robert
  • Azizitorghabeh, Atefeh

Abstract

Methods of recovering a nickel, cobalt, and manganese salts are disclosed. The method includes removing one or more impurities from an acidic aqueous leach solution including cobalt, manganese, and nickel salts to produce a purified aqueous solution including the cobalt, manganese, nickel salts, and remaining impurity salts. The method includes extracting the purified aqueous solution in a first liquid-liquid extraction step using a first organic extractant to produce a first aqueous raffinate solution including the cobalt, manganese, and nickel salts and a first loaded organic solution including one or more of the remaining impurity salts from the purified aqueous solution. The method further includes extracting the cobalt, manganese, and nickel salts from the first aqueous raffinate solution in a second liquid-liquid extraction step using a second organic extractant to produce a second loaded organic solution including the cobalt, manganese and nickel salts and a second aqueous raffinate solution comprising one or more of the remaining impurity salts.

IPC Classes  ?

  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 3/32 - Carboxylic acids
  • C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 47/00 - Obtaining manganese
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

4.

PH MONITORING AND CONTROL FOR COPRECIPITATION OF CATHODE MATERIAL PRECURSORS

      
Application Number 19432280
Status Pending
Filing Date 2025-12-24
First Publication Date 2026-07-02
Owner Ascend Elements, Inc. (USA)
Inventor Pelsozy, Michael

Abstract

A recycling process for Lithium-ion (Li-ion) batteries employs a closely monitored co-precipitation reaction for precipitating cathode active material precursor (pCAM) in a comingled form of metal salts corresponding to the intended chemistry for the new battery. The coprecipitation relies on a controlled pH that assures a particle size, morphology and purity of the resulting precipitated pCAM. A combination of internal reactor pH sensing within the coprecipitation reactor along with external pH sensing to validate the sensed pH ensures a consistent target pH throughout the coprecipitation process, compensating for drift or sensor failure in view of the harsh reactor environment.

IPC Classes  ?

  • C22B 3/08 - Sulfuric acid
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 47/00 - Obtaining manganese
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

5.

SELECTIVE COBALT, MANGANESE AND NICKEL EXTRACTION FROM BATTERY RECYCLING LEACHATE SOLUTIONS

      
Application Number US2025061128
Publication Number 2026/143116
Status In Force
Filing Date 2025-12-23
Publication Date 2026-07-02
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Duhayon, Christophe Henri Robert
  • Azizitorghabeh, Atefeh

Abstract

A method of recovering a nickel, cobalt, and manganese salts includes removing impurities from an acidic aqueous leach solution including cobalt, manganese, and nickel salts to produce a purified aqueous solution including the metal salts and remaining impurity salts. The method includes extracting the purified aqueous solution in a first liquid-liquid extraction step using a first organic extractant to produce a first aqueous raffinate solution including the cobalt, manganese, and nickel salts and a first loaded organic solution including one or more of the remaining impurity salts from the purified aqueous solution. The method further includes extracting the cobalt, manganese, and nickel salts from the first aqueous raffinate solution in a second liquid-liquid extraction step using a second organic extractant to produce a second loaded organic solution including the cobalt, manganese and nickel salts and a second aqueous raffinate solution comprising one or more of the remaining impurity salts.

IPC Classes  ?

  • C22B 3/06 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions
  • C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

6.

RECYCLED GRAPHITE SURFACE REPAIR AND CONDUCTIVE CARBON SEPARATION

      
Application Number 19423585
Status Pending
Filing Date 2025-12-17
First Publication Date 2026-04-23
Owner
  • Mexichem Fluor, Inc. (USA)
  • Ascend Elements, Inc. (USA)
Inventor Ashour, Rakan

Abstract

A process to make battery-grade graphite from black mass. The process entails spheronizing graphite derived from black mass to yield spheronized graphite, classifying the spheronized graphite to remove conductive carbon fines, and optionally coating the resulting bulk graphite to reduce its specific surface area.

IPC Classes  ?

  • C01B 32/21 - After-treatment
  • H01M 4/02 - Electrodes composed of, or comprising, active material
  • H01M 4/1393 - Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals

7.

RECOVERY OF MATERIALS FROM LITHIUM IRON PHOSPHATE BATTERY WASTE

      
Application Number US2025044727
Publication Number 2026/080163
Status In Force
Filing Date 2025-09-03
Publication Date 2026-04-16
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

Methods are provided for forming iron phosphate. In a first stage, heat treating lithium iron phosphate black mass and selectively leaching lithium from the heat treated lithium iron phosphate black mass with an oxidative leaching solution forms a semi-delithiated iron phosphate black mass. In a second stage, the semi-delithiated iron phosphate black mass and a pre-leaching solution comprising dilute acid and an oxidizing agent are mixed, and in a third stage the remaining iron phosphate in the solid phase and an iron phosphate leaching solution are mixed to form a leachate comprising iron phosphate.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • B09B 3/40 - Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
  • B09B 3/70 - Chemical treatment, e.g. pH adjustment or oxidation
  • B09B 101/16 - Batteries

8.

RECOVERY OF MATERIALS FROM LITHIUM IRON PHOSPHATE BATTERY WASTE

      
Application Number 19318201
Status Pending
Filing Date 2025-09-03
First Publication Date 2026-04-09
Owner Ascend Elements, Inc. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

Methods are provided for forming iron phosphate. In a first stage, heat treating lithium iron phosphate black mass and selectively leaching lithium from the heat treated lithium iron phosphate black mass with an oxidative leaching solution forms a semi-delithiated iron phosphate black mass. In a second stage, the semi-delithiated iron phosphate black mass and a pre-leaching solution comprising dilute acid and an oxidizing agent are mixed, and in a third stage the remaining iron phosphate in the solid phase and an iron phosphate leaching solution are mixed to form a leachate comprising iron phosphate.

IPC Classes  ?

  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C21B 15/00 - Other processes for the manufacture of iron from iron compounds

9.

METHODS FOR BATTERY-GRADE AQUEOUS SOLUTIONS OF NICKEL SALTS

      
Application Number 19242885
Status Pending
Filing Date 2025-06-18
First Publication Date 2026-02-05
Owner Ascend Elements, Inc. (USA)
Inventor
  • Nazari, Amir Mohammad
  • Gratz, Eric
  • Pelsozy, Michael Christopher

Abstract

Methods are provided for preparing an aqueous nickel salt solution from an aqueous mixed metal salt solution comprising cobalt, manganese, and nickel salts and one or more impurity salts. The method includes precipitating a first group of impurity salts and the manganese salt to form an aqueous pre-extraction solution. The aqueous pre-extraction solution and an organic extractant solution are mixed to form an aqueous raffinate phase and a loaded organic phase, wherein the aqueous raffinate phase is the aqueous nickel salt solution.

IPC Classes  ?

  • C01G 53/50 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
  • C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

10.

PURIFIED NICKEL SOLUTIONS USING SUCCESSIVE SOLVENT EXTRACTIONS

      
Application Number 18792977
Status Pending
Filing Date 2024-08-02
First Publication Date 2026-02-05
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Duhayon, Christophe Henri Robert
  • Azizitorghabeh, Atefeh

Abstract

Methods of recovering a nickel salt are disclosed. The method includes removing one or more impurities from an aqueous leach solution including cobalt, manganese, and nickel salts to produce a first purified aqueous solution including the cobalt, manganese, and nickel salts. The method includes extracting the cobalt and manganese salts from the first purified aqueous solution in a first liquid-liquid extraction step using a first organic extractant to produce an aqueous raffinate solution including the nickel salt and a first loaded organic solution including the cobalt and manganese salts. The method further includes extracting the nickel salt from the aqueous raffinate solution in a second liquid-liquid extraction step using a second organic extractant to produce a second loaded organic solution including the nickel salt. Systems for recovering a nickel salt are also disclosed.

IPC Classes  ?

  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus

11.

METHODS FOR BATTERY-GRADE AQUEOUS SOLUTIONS OF NICKEL SALTS

      
Application Number US2025034292
Publication Number 2026/029873
Status In Force
Filing Date 2025-06-18
Publication Date 2026-02-05
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Nazari, Amir Mohammad
  • Gratz, Eric
  • Pelsozy, Michael Christopher

Abstract

Methods are provided for preparing an aqueous nickel salt solution from an aqueous mixed metal salt solution comprising cobalt, manganese, and nickel salts and one or more impurity salts. The method includes precipitating a first group of impurity salts and the manganese salt to form an aqueous pre-extraction solution. The aqueous pre-extraction solution and an organic extractant solution are mixed to form an aqueous raffinate phase and a loaded organic phase, wherein the aqueous raffinate phase is the aqueous nickel salt solution.

IPC Classes  ?

  • C01B 25/14 - Sulfur, selenium, or tellurium compounds of phosphorus
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/02 - Electrodes composed of, or comprising, active material

12.

PURIFIED NICKEL SOLUTIONS USING SUCCESSIVE SOLVENT EXTRACTIONS

      
Application Number US2025037120
Publication Number 2026/029943
Status In Force
Filing Date 2025-07-10
Publication Date 2026-02-05
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Duhayon, Christophe, Henri Robert
  • Azizitorghabeh, Atefeh

Abstract

Methods of recovering a nickel salt are disclosed. The method includes removing one or more impurities from an aqueous leach solution including cobalt, manganese, and nickel salts to produce a first purified aqueous solution including the cobalt, manganese, and nickel salts. The method includes extracting the cobalt and manganese salts from the first purified aqueous solution in a first liquid-liquid extraction step using a first organic extractant to produce an aqueous raffinate solution including the nickel salt and a first loaded organic solution including the cobalt and manganese salts. The method further includes extracting the nickel salt from the aqueous raffinate solution in a second liquid-liquid extraction step using a second organic extractant to produce a second loaded organic solution including the nickel salt. Systems for recovering a nickel salt are also disclosed.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • B09B 3/70 - Chemical treatment, e.g. pH adjustment or oxidation
  • B09B 3/80 - Destroying solid waste or transforming solid waste into something useful or harmless involving an extraction step
  • B09B 101/16 - Batteries

13.

BATTERY DISCHARGE CONTAINMENT SYSTEM

      
Application Number US2025032246
Publication Number 2025/255223
Status In Force
Filing Date 2025-06-04
Publication Date 2025-12-11
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Davis, Gregory
  • Danielson Jr., William D.

Abstract

Disclosed is a battery discharge containment system and method for deenergizing a lithium-ion battery module or pack. The system comprises a discharge containment enclosure, an electrical discharge system, a temperature monitoring system, a coolant system, a fire protection system, and an optional exhaust system which operate together to quickly and safely deenergize a battery module or pack in preparation for recycling.

IPC Classes  ?

  • H01M 10/44 - Methods for charging or discharging
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • H01M 10/613 - Cooling or keeping cold
  • H01M 10/635 - Control systems based on ambient temperature
  • H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
  • A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways

14.

BATTERY DISCHARGE CONTAINMENT SYSTEM

      
Application Number 19228113
Status Pending
Filing Date 2025-06-04
First Publication Date 2025-12-04
Owner Ascend Elements, Inc. (USA)
Inventor
  • Davis, Gregory
  • Danielson, Jr., William D.

Abstract

Disclosed is a battery discharge containment system and method for deenergizing a lithium-ion battery module or pack. The system comprises a discharge containment enclosure, an electrical discharge system, a temperature monitoring system, a coolant system, a fire protection system, and an optional exhaust system which operate together to quickly and safely deenergize a battery module or pack in preparation for recycling.

IPC Classes  ?

  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
  • H01M 10/44 - Methods for charging or discharging
  • H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
  • H01M 10/613 - Cooling or keeping cold
  • H01M 10/63 - Control systems
  • H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
  • H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion

15.

IMPURITY MANAGEMENT PROCESS FOR LITHIUM-ION BATTERY RECYCLING

      
Application Number 18661475
Status Pending
Filing Date 2024-05-10
First Publication Date 2025-11-13
Owner Ascend Elements, Inc. (USA)
Inventor
  • Kim, Kee-Chan
  • Villar Monteagudo, Bebel E.
  • Gratz, Eric

Abstract

Methods are provided for removing impurities from recycled battery black mass. The method includes mixing a delithiated black mass with a first solution to form a pre-leached delithiated black mass and a pre-leach solution, separating the pre-leached delithiated black mass from the pre-leach solution, mixing the separated pre-leached delithiated black mass and a second aqueous solution to form a mixture comprising graphite and a leachate solution, and separating the graphite and the leachate solution. The pre-leach solution is comprised of a first group of impurity ions while the leachate solution is comprised of a second group of impurity ions and cathode metal ions.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • B09B 3/10 - Destroying solid waste or transforming solid waste into something useful or harmless involving an adsorption step
  • B09B 3/70 - Chemical treatment, e.g. pH adjustment or oxidation
  • B09B 3/80 - Destroying solid waste or transforming solid waste into something useful or harmless involving an extraction step
  • B09B 101/16 - Batteries
  • C22B 1/02 - Roasting processes
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 3/24 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means by adsorption on solid substances, e.g. by extraction with solid resins
  • C22B 3/42 - Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
  • C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 15/00 - Obtaining copper
  • C22B 26/12 - Obtaining lithium
  • C22B 26/22 - Obtaining magnesium
  • C22B 47/00 - Obtaining manganese

16.

IMPURITY MANAGEMENT PROCESS FOR LITHIUM-ION BATTERY RECYCLING

      
Application Number US2025028504
Publication Number 2025/235821
Status In Force
Filing Date 2025-05-08
Publication Date 2025-11-13
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Monteagudo, Bebel E. Villar
  • Gratz, Eric

Abstract

Methods are provided for removing impurities from recycled battery black mass. The method includes mixing a delithiated black mass with a first solution to form a pre-leached delithiated black mass and a pre-leach solution, separating the pre-leached delithiated black mass from the pre-leach solution, mixing the separated pre-leached delithiated black mass and a second aqueous solution to form a mixture comprising graphite and a leachate solution, and separating the graphite and the leachate solution. The pre-leach solution is comprised of a first group of impurity ions while the leachate solution is comprised of a second group of impurity ions and cathode metal ions.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 47/00 - Obtaining manganese

17.

GRAPHITE ROASTING AND PURIFICATION FOR LI-ION BATTERIES

      
Application Number 18653479
Status Pending
Filing Date 2024-05-02
First Publication Date 2025-11-06
Owner Ascend Elements, Inc. (USA)
Inventor Tang, Yilun

Abstract

A purification process for recycled graphite for use as anode material in Li-ion batteries includes heating or roasting graphite from a recycling stream for removing impurities such as PVDF (polyvinylidene fluoride) and other fluorides. A precipitate comprising graphite results from a suitable process such as acid leaching of black mass from a battery recycling stream. The acid leach separates cathode material metals, leaving a graphite rich precipitate of anode materials. Impurities resulting from binder and other materials tend to remain in the precipitate. A roasting process is used to heat the precipitate for removal of contaminants such as fluorides resulting from PVDF residues, without burning or removing the graphite. The result is a highly pure graphite suitable for use in anode material in a recycled battery.

IPC Classes  ?

18.

GRAPHITE ROASTING AND PURIFICATION FOR LI-ION BATTERIES

      
Application Number US2025027229
Publication Number 2025/231203
Status In Force
Filing Date 2025-05-01
Publication Date 2025-11-06
Owner
  • ASCEND ELEMENTS, INC. (USA)
  • MEXICHEM FLUOR INC. (USA)
Inventor Tang, Yilun

Abstract

A purification process for recycled graphite for use as anode material in Li-ion batteries includes heating or roasting graphite from a recycling stream for removing impurities such as PVDF (polyvinylidene fluoride) and other fluorides. A precipitate comprising graphite results from a suitable process such as acid leaching of black mass from a battery recycling stream. The acid leach separates cathode material metals, leaving a graphite rich precipitate of anode materials. Impurities resulting from binder and other materials tend to remain in the precipitate. A roasting process is used to heat the precipitate for removal of contaminants such as fluorides resulting from PVDF residues, without burning or removing the graphite. The result is a highly pure graphite suitable for use in anode material in a recycled battery.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C01B 32/215 - PurificationRecovery or purification of graphite formed in iron making, e.g. kish graphite
  • B09B 3/70 - Chemical treatment, e.g. pH adjustment or oxidation
  • B09B 3/40 - Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
  • H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
  • H01M 4/02 - Electrodes composed of, or comprising, active material
  • B09B 101/16 - Batteries

19.

METHOD AND APPARATUS FOR RECYCLING LITHIUM-ION BATTERIES

      
Application Number 19205325
Status Pending
Filing Date 2025-05-12
First Publication Date 2025-08-28
Owner
  • Worcester Polytechnic Institute (USA)
  • Ascend Elements, Inc. (USA)
Inventor
  • Wang, Yan
  • Apelian, Diran
  • Zou, Haiyang

Abstract

Cathode material from exhausted lithium ion batteries are dissolved in a solution for extracting the useful elements Co (cobalt), Ni (nickel), Al (Aluminum) and Mn (manganese) to produce active cathode materials for new batteries. The solution includes compounds of desirable materials such as cobalt, nickel, aluminum and manganese dissolved as compounds from the exhausted cathode material of spent cells. Depending on a desired proportion, or ratio, of the desired materials, raw materials are added to the solution to achieve the desired ratio of the commingled compounds for the recycled cathode material for new cells. The desired materials precipitate out of solution without extensive heating or separation of the desired materials into individual compounds or elements. The resulting active cathode material has the predetermined ratio for use in new cells, and avoids high heat typically required to separate the useful elements because the desired materials remain commingled in solution.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 1/24 - BindingBriquetting
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 26/22 - Obtaining magnesium

20.

PITCH COATING FOR LI-ION BATTERIES

      
Application Number 18400358
Status Pending
Filing Date 2023-12-29
First Publication Date 2025-07-03
Owner Ascend Elements, Inc. (USA)
Inventor Tang, Yilun

Abstract

A recycling and enhancement process for graphite from a Li-ion recycling stream includes pitch coating for enhancing tap density and BET surface area compared to virgin materials and commercial graphite, and provide similar, if not greater performance. A multi-step pitch coating process includes two or more pitch coating stages at different temperatures. A first pitch mixing and coating at a lower temperature is followed by a second pitch mixing and coating at a higher temperature, which results in a pitch coated purified graphite having improved surface characteristics over recycled graphite and comparable or better properties compared to virgin (non-recycled) graphite.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C01B 32/205 - Preparation
  • C01B 32/215 - PurificationRecovery or purification of graphite formed in iron making, e.g. kish graphite
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof

21.

PITCH COATING FOR LI-ION BATTERIES

      
Application Number US2024060555
Publication Number 2025/144641
Status In Force
Filing Date 2024-12-17
Publication Date 2025-07-03
Owner ASCEND ELEMENTS, INC. (USA)
Inventor Tang, Yilun

Abstract

A recycling and enhancement process for graphite from a Li-ion recycling stream includes pitch coating for enhancing tap density and BET surface area compared to virgin materials and commercial graphite, and provide similar, if not greater performance. A multi-step pitch coating process includes two or more pitch coating stages at different temperatures. A first pitch mixing and coating at a lower temperature is followed by a second pitch mixing and coating at a higher temperature, which results in a pitch coated purified graphite having improved surface characteristics over recycled graphite and comparable or better properties compared to virgin (non-recycled) graphite.

IPC Classes  ?

22.

SINGLE CRYSTAL DOPED CATHODE MATERIALS FROM RECYCLED LITHIUM-ION BATTERIES

      
Application Number US2024054945
Publication Number 2025/101769
Status In Force
Filing Date 2024-11-07
Publication Date 2025-05-15
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Song, Bohang
  • Gratz, Eric
  • Liu, Yadong
  • Mistry, Dhiren
  • Shin, Jiyong
  • Monzon, Martha

Abstract

In a battery recycling process, a recycling stream including charge material metals from exhausted Li-ion batteries is aggregated or otherwise comminuted to generate recycled battery charge material having comparable or improved cycle life as well as recycled charge material precursor having fewer cracking defects using doping substances in both a coprecipitation phase and a sintering phase of the recycling sequence. Prior to coprecipitation of a cathode material precursor, a leach solution of comingled charge material metals is produced, the ratio of the charge material metals is adjusted based on recycled battery specifications, and a relatively small quantity of a first dopant is added. The doped precursor, a lithium salt, and a second dopant are combined and sintered to form a doped cathode material having a single crystal morphology and a higher tap density than the doped cathode precursor.

IPC Classes  ?

  • C01G 53/00 - Compounds of nickel
  • C30B 29/22 - Complex oxides
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • H01M 4/02 - Electrodes composed of, or comprising, active material

23.

HydroCAT SUSTAINABLE BATTERY MATERIALS

      
Application Number 1841634
Status Registered
Filing Date 2024-12-27
Registration Date 2024-12-27
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments

Goods & Services

Engineered battery materials or components, namely, anode active material precursors to anode active materials used to make anodes; cathode active material precursors to cathode active materials used to make cathodes, with specific performance characteristics for thermal stability, life cycle, power or range, made from recycled battery metals and marketed to manufacturers of lithium-ion batteries for use in electric vehicles, trucks, marine vessels or stationary energy storage systems; chemicals for use in the manufacture of batteries; industrial chemicals. Engineered battery materials or components, namely, anode active materials used to make anodes, cathode active materials used to make cathodes, with specific performance characteristics for thermal stability, life cycle, power or range, made from recycled battery metals and marketed to manufacturers of lithium-ion batteries for use in electric vehicles, trucks, marine vessels or stationary energy storage systems.

24.

IMPURITY CONTROL IN LITHIUM-ION BATTERY RECYCLING

      
Application Number 18237800
Status Pending
Filing Date 2023-08-24
First Publication Date 2025-02-27
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

A method of producing a cathode material precursor having low levels of Cu impurities is described. Heat treating a black mass from a recycled lithium-ion battery stream, wherein the black mass comprises copper metal and cathode material comprising nickel, followed by leaching of the heat-treated black mass with an aqueous acid forms an acidic aqueous leach solution comprising nickel metal, cathode metal salts, and copper salts. The copper salts have been found to react with the nickel metal in the aqueous leach solution to form copper metal, which can be readily removed from the acidic aqueous leach solution. Coprecipitation of the cathode metal salts and the nickel salts form nearly Cu-free cathode material precursor.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 1/02 - Roasting processes
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 23/00 - Obtaining nickel or cobalt

25.

IMPURITY MANAGEMENT FOR RECYCLED CATHODE MATERIAL

      
Application Number 18237804
Status Pending
Filing Date 2023-08-24
First Publication Date 2025-02-27
Owner Ascend Elements, Inc. (USA)
Inventor
  • Gratz, Eric
  • Kim, Kee-Chan
  • Nazari, Amir
  • Villar, Bebel

Abstract

Recycling of lithium-ion batteries includes the steps of leaching a black mass including cathode and anode materials with a leaching agent, optionally including an oxidizing agent or reducing agent, to form an aqueous acidic leach solution of metal salts comprising metal salts and a plurality of impurity salts. The impurity salts are removed in various purification phases including treating with an oxygen-containing gas and optional electrodeposition and ion exchange steps, each at specified pH ranges. The amounts of the metal salts in the treated aqueous acidic leach solution are then adjusted to a desired ratio and coprecipitated to form a precursor cathode active material.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C01G 53/00 - Compounds of nickel
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

26.

TERNARY POSITIVE ACTIVE ELECTRODE LEACHING

      
Application Number 18237807
Status Pending
Filing Date 2023-08-24
First Publication Date 2025-02-27
Owner Ascend Elements, Inc. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

A recycling process for cathode material of a Li-ion battery generates highly pure cathode material precursor from a leaching process using either heat treatment or an oxidizing agent. The highly pure cathode material includes cathode material metallic elements of Ni, Mn and Co, leached from a granular recycling stream of waste batteries, by a coprecipitation process that defines a molar ratio of the cathode material metals corresponding to a prescribed battery chemistry. The result is a precursor cathode active material (pCAM) in a form that may be sintered with lithium (typically lithium carbonate or lithium hydroxide) to form the cathode active material for the recycled battery, including the charge material metals in the prescribed ratio.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof

27.

IMPURITY MANAGEMENT FOR RECYCLED CATHODE MATERIAL

      
Application Number US2024042377
Publication Number 2025/042669
Status In Force
Filing Date 2024-08-15
Publication Date 2025-02-27
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Gratz, Eric
  • Kim, Kee-Chan
  • Nazari, Amir
  • Villar, Bebel

Abstract

Recycling of lithium-ion batteries includes the steps of leaching a black mass including cathode and anode materials with a leaching agent, optionally including an oxidizing agent or reducing agent, to form an aqueous acidic leach solution of metal salts comprising metal salts and a plurality of impurity salts. The impurity salts are removed in various purification phases including treating with an oxygen-containing gas and optional electrodeposition and ion exchange steps, each at specified pH ranges. The amounts of the metal salts in the treated aqueous acidic leach solution are then adjusted to a desired ratio and coprecipitated to form a precursor cathode active material.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 3/08 - Sulfuric acid
  • C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 47/00 - Obtaining manganese
  • C22B 26/12 - Obtaining lithium
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C25C 1/12 - Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper

28.

TERNARY POSITIVE ACTIVE ELECTRODE LEACHING

      
Application Number US2024042379
Publication Number 2025/042671
Status In Force
Filing Date 2024-08-15
Publication Date 2025-02-27
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

A recycling process for cathode material of a Li-ion battery generates highly pure cathode material precursor from a leaching process using either heat treatment or an oxidizing agent. The highly pure cathode material includes cathode material metallic elements of Ni, Mn and Co, leached from a granular recycling stream of waste batteries, by a coprecipitation process that defines a molar ratio of the cathode material metals corresponding to a prescribed battery chemistry. The result is a precursor cathode active material (pCAM) in a form that may be sintered with lithium (typically lithium carbonate or lithium hydroxide) to form the cathode active material for the recycled battery, including the charge material metals in the prescribed ratio.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 3/08 - Sulfuric acid
  • C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 47/00 - Obtaining manganese
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 26/12 - Obtaining lithium

29.

IMPURITY CONTROL IN LITHIUM-ION BATTERY RECYCLING

      
Application Number US2024042384
Publication Number 2025/042672
Status In Force
Filing Date 2024-08-15
Publication Date 2025-02-27
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

A method of producing a cathode material precursor having low levels of Cu impurities is described. Heat treating a black mass from a recycled lithium-ion battery stream, wherein the black mass comprises copper metal and cathode material comprising nickel, followed by leaching of the heat-treated black mass with an aqueous acid forms an acidic aqueous leach solution comprising nickel metal, cathode metal salts, and copper salts. The copper salts have been found to react with the nickel metal in the aqueous leach solution to form copper metal, which can be readily removed from the acidic aqueous leach solution. Coprecipitation of the cathode metal salts and the nickel salts form nearly Cu-free cathode material precursor.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 3/08 - Sulfuric acid
  • C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 47/00 - Obtaining manganese
  • C22B 26/12 - Obtaining lithium
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof

30.

SINGLE CRYSTAL DOPED CATHODE MATERIALS FROM RECYCLED LITHIUM-ION BATTERIES

      
Application Number 18940387
Status Pending
Filing Date 2024-11-07
First Publication Date 2025-02-20
Owner Ascend Elements, Inc. (USA)
Inventor
  • Song, Bohang
  • Gratz, Eric
  • Liu, Yadong
  • Mistry, Dhiren
  • Shin, Jiyong
  • Monzon, Martha

Abstract

In a battery recycling process, a recycling stream including charge material metals from exhausted Li-ion batteries is aggregated or otherwise comminuted to generate recycled battery charge material having comparable or improved cycle life as well as recycled charge material precursor having fewer cracking defects using doping substances in both a coprecipitation phase and a sintering phase of the recycling sequence. Prior to coprecipitation of a cathode material precursor, a leach solution of comingled charge material metals is produced, the ratio of the charge material metals is adjusted based on recycled battery specifications, and a relatively small quantity of a first dopant is added. The doped precursor, a lithium salt, and a second dopant are combined and sintered to form a doped cathode material having a single crystal morphology and a higher tap density than the doped cathode precursor.

IPC Classes  ?

  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • B09B 3/70 - Chemical treatment, e.g. pH adjustment or oxidation
  • B09B 3/80 - Destroying solid waste or transforming solid waste into something useful or harmless involving an extraction step
  • B09B 101/16 - Batteries
  • C01G 53/00 - Compounds of nickel
  • C30B 29/22 - Complex oxides
  • H01M 4/02 - Electrodes composed of, or comprising, active material
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy

31.

CURING PROCESS FOR SURFACE DEFECTS OF CATHODE MATERIAL

      
Application Number 18231953
Status Pending
Filing Date 2023-08-09
First Publication Date 2025-02-13
Owner Ascend Elements, Inc. (USA)
Inventor
  • Liu, Yadong
  • Gratz, Eric
  • Deng, Haixia
  • Mistry, Dhiren
  • Parmar, Anil
  • Monzon, Martha

Abstract

A curing process for cathode material alleviates surface defects on particles of the cathode material for improving battery performance. Heat treating a granular form of the cathode material in a flow of an oxygen-containing gas removes surface defects on the cathode material particles that have been mechanically deagglomerated. This results in significant improvement in both the rate of charge/discharge and the number of recharge cycles.

IPC Classes  ?

  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 3/08 - Sulfuric acid
  • C22B 26/12 - Obtaining lithium
  • C22B 47/00 - Obtaining manganese
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

32.

MULTI-STAGE LITHIATION FOR CATHODE MATERIAL

      
Application Number 18230938
Status Pending
Filing Date 2023-08-07
First Publication Date 2025-02-13
Owner Ascend Elements, Inc. (USA)
Inventor
  • Liu, Yadong
  • Gratz, Eric
  • Deng, Haixia
  • Mistry, Dhiren
  • Parmar, Anil
  • Monzon, Martha

Abstract

A Li-ion cathode material is prepared by a multi-stage lithiation process that separates a total amount of lithium called for by the recycled battery to be used in a series of sintering stages. A leaching, ratio adjustment and coprecipitation sequence forms a cathode precursor having a predetermined ratio of metallic elements from a comingled recycling stream of Li-ion batteries. The precursor is sintered with a lithium salt in a sequence of stages, each having a portion of the total lithium quantity, for a predetermined duration and temperature. The initial sintering stage tends to define the crystallinity of the resulting active cathode material and has a particle size determined at least in part by the portion of lithium at each stage.

IPC Classes  ?

  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • C30B 29/22 - Complex oxides
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

33.

MULTI-STAGE LITHIATION FOR CATHODE MATERIAL

      
Application Number US2023029617
Publication Number 2025/034204
Status In Force
Filing Date 2023-08-07
Publication Date 2025-02-13
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Liu, Yadong
  • Gratz, Eric
  • Deng, Haixia
  • Mistry, Dhiren
  • Parma, Anil
  • Monzon, Martha

Abstract

A Li-ion cathode material is prepared by a multi-stage lithiation process that separates a total amount of lithium called for by the recycled battery to be used in a series of sintering stages. A leaching, ratio adjustment and coprecipitation sequence forms a cathode precursor having a predetermined ratio of metallic elements from a comingled recycling stream of Li-ion batteries. The precursor is sintered with a lithium salt in a sequence of stages, each having a portion of the total lithium quantity, for a predetermined duration and temperature. The initial sintering stage tends to define the crystallinity of the resulting active cathode material and has a particle size determined at least in part by the portion of lithium at each stage.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 47/00 - Obtaining manganese
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
  • H01M 4/02 - Electrodes composed of, or comprising, active material

34.

CURING PROCESS FOR SURFACE DEFECTS OF CATHODE MATERIAL

      
Application Number US2024041578
Publication Number 2025/035039
Status In Force
Filing Date 2024-08-08
Publication Date 2025-02-13
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Liu, Yadong
  • Gratz, Eric
  • Deng, Haixia
  • Mistry, Dhiren
  • Parmar, Anil
  • Monzon, Martha

Abstract

A curing process for cathode material alleviates surface defects on particles of the cathode material for improving battery performance. Heat treating a granular form of the cathode material in a flow of an oxygen-containing gas removes surface defects on the cathode material particles that have been mechanically deagglomerated. This results in significant improvement in both the rate of charge/discharge and the number of recharge cycles.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 3/08 - Sulfuric acid
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 47/00 - Obtaining manganese
  • C22B 1/16 - SinteringAgglomerating
  • C01G 53/00 - Compounds of nickel
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy

35.

Recycled graphite surface repair and conductive carbon separation

      
Application Number 18771485
Grant Number 12545587
Status In Force
Filing Date 2024-07-12
First Publication Date 2025-01-23
Grant Date 2026-02-10
Owner Ascend Elements, Inc. (USA)
Inventor Ashour, Rakan

Abstract

A process to make battery-grade graphite from black mass. The process entails spheronizing graphite derived from black mass to yield spheronized graphite, classifying the spheronized graphite to remove conductive carbon fines, and optionally coating the resulting bulk graphite to reduce its specific surface area.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C01B 32/21 - After-treatment
  • H01M 4/1393 - Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
  • H01M 4/02 - Electrodes composed of, or comprising, active material

36.

RECYCLED GRAPHITE SURFACE REPAIR AND CONDUCTIVE CARBON SEPARATION

      
Application Number US2024037824
Publication Number 2025/019328
Status In Force
Filing Date 2024-07-12
Publication Date 2025-01-23
Owner
  • MEXICHEM FLUOR, INC. (USA)
  • ASCEND ELEMENTS, INC. (USA)
Inventor Ashour, Rakan

Abstract

A process to make battery-grade graphite from black mass. The process entails spheronizing graphite derived from black mass to yield spheronized graphite, classifying the spheronized graphite to remove conductive carbon fines, and optionally coating the resulting bulk graphite to reduce its specific surface area.

IPC Classes  ?

  • C01B 32/215 - PurificationRecovery or purification of graphite formed in iron making, e.g. kish graphite

37.

HYDROCAT SUSTAINABLE BATTERY MATERIALS

      
Application Number 238269800
Status Pending
Filing Date 2024-12-27
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Engineered battery materials or components, namely, anode active material precursors to anode active materials used to make anodes; cathode active material precursors to cathode active materials used to make cathodes, with specific performance characteristics for thermal stability, life cycle, power or range, made from recycled battery metals and marketed to manufacturers of lithium-ion batteries for use in electric vehicles, trucks, marine vessels or stationary energy storage systems; chemicals for use in the manufacture of batteries; industrial chemicals. (2) Engineered battery materials or components, namely, anode active materials used to make anodes, cathode active materials used to make cathodes, with specific performance characteristics for thermal stability, life cycle, power or range, made from recycled battery metals and marketed to manufacturers of lithium-ion batteries for use in electric vehicles, trucks, marine vessels or stationary energy storage systems.

38.

BATTERY CELL DISCHARGE SYSTEM AND METHOD OF DISCHARGING CELLS

      
Application Number 18210302
Status Pending
Filing Date 2023-06-15
First Publication Date 2024-12-19
Owner Ascend Elements, Inc. (USA)
Inventor
  • Davis, Gregory
  • Danielson, Jr., William D.
  • Fan, Jacky

Abstract

Forced discharge of Li-ion batteries for recycling extracts residual electrical energy from the battery cells to avoid sudden and unexpected release of residual energy during recycling. A battery cell containment device applies a physical restraint to one or more battery cells, and engages positive and negative terminals on the cells for electrical communication. A cooling medium flows through the containment for thermal transfer of excess heat generated during the discharge. Depending on the residual charge remaining in the battery cells, excess electrical energy is discharged thought the positive and negative terminals to a state of zero charge. A reverse voltage forces current through the anode to being the battery to a zero-energy state. The reverse voltage continues until internal short circuits resulting from degradation of current collectors in the battery render it benign.

IPC Classes  ?

  • H01M 10/44 - Methods for charging or discharging
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
  • H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
  • H01M 10/613 - Cooling or keeping cold
  • H01M 10/625 - Vehicles
  • H01M 50/172 - Arrangements of electric connectors penetrating the casing
  • H01M 50/202 - Casings or frames around the primary casing of a single cell or a single battery
  • H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
  • H01M 50/383 - Flame arresting or ignition-preventing means
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

39.

BATTERY CELL DISCHARGE SYSTEM AND METHOD OF DISCHARGING CELLS

      
Application Number US2023025412
Publication Number 2024/258407
Status In Force
Filing Date 2023-06-15
Publication Date 2024-12-19
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Davis, Gregory
  • Danielson, Douglas
  • Fan, Jacky

Abstract

Forced discharge of Li-ion batteries for recycling extracts residual electrical energy from the battery cells to avoid sudden and unexpected release of residual energy during recycling. A battery cell containment device applies a physical restraint to one or more battery cells, and engages positive and negative terminals on the cells for electrical communication. A cooling medium flows through the containment for thermal transfer of excess heat generated during the discharge. Depending on the residual charge remaining in the battery cells, excess electrical energy is discharged thought the positive and negative terminals to a state of zero charge. A reverse voltage forces current through the anode to being the battery to a zero-energy state. The reverse voltage continues until internal short circuits resulting from degradation of current collectors in the battery render it benign.

IPC Classes  ?

  • H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
  • H01M 10/6567 - Liquids
  • H01M 10/625 - Vehicles
  • H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
  • A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways

40.

NICKEL-RICH BATTERY RECYCLING

      
Application Number 18769828
Status Pending
Filing Date 2024-07-11
First Publication Date 2024-10-31
Owner Ascend Elements, Inc. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

A battery recycling process recovers lithium from nickel-rich cathode material in a recycling stream of end-of-life batteries. A dilute acid leach of a high nickel content cathode material contains a mixture of sulfuric acid based on a molar quantity of lithium in the cathode material. The highly selective leach generates a lithium rich solution with a small amount of nickel removable by nanofiltration to achieve a highly efficient recovery of the lithium contained in the recycling stream. A quantity of the leach acid based on the lithium content and a quantity of water based on a total black mass of the recycling stream results in a highly selective, near pure lithium leach when the recycling stream results from high nickel NMC batteries such as 811.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 26/12 - Obtaining lithium

41.

Cascading co-precipitation system

      
Application Number 18129479
Grant Number 12662392
Status In Force
Filing Date 2023-03-31
First Publication Date 2024-10-03
Grant Date 2026-06-23
Owner Ascend Elements, Inc. (USA)
Inventor Shim, Jong Hyun

Abstract

A hydrometallurgical coprecipitation process for leached cathode materials includes adjusting a pH and agitation of an aqueous acidic leach solution in successive stages of a multi-stage reactor system for generating coprecipitated particles of a targeted morphology, particle size range, and surface characteristics. The aqueous acidic leach solution (leach solution) initially forms seed particles based on increasing pH. In successive stages, the pH and the stirring rate are varied for growing the seed particles into progressively larger particles as additional leach solution is introduced.

IPC Classes  ?

  • C01G 53/40 - Complex oxides containing nickel and at least one other metal element
  • B01D 21/01 - Separation of suspended solid particles from liquids by sedimentation using flocculating agents
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

42.

CASCADING CO-PRECIPITATION SYSTEM

      
Application Number US2023017104
Publication Number 2024/205598
Status In Force
Filing Date 2023-03-31
Publication Date 2024-10-03
Owner ASCEND ELEMENTS, INC. (USA)
Inventor Shim, Jong Hyun

Abstract

A hydrometallurgical coprecipitation process for leached cathode materials includes adjusting a pH and agitation of an aqueous acidic leach solution in successive stages of a multi-stage reactor system for generating coprecipitated particles of a targeted morphology, particle size range, and surface characteristics. The aqueous acidic leach solution (leach solution) initially forms seed particles based on increasing pH. In successive stages, the pH and the stirring rate are varied for growing the seed particles into progressively larger particles as additional leach solution is introduced.

IPC Classes  ?

  • C22B 3/06 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 47/00 - Obtaining manganese
  • B22F 1/065 - Spherical particles
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/02 - Electrodes composed of, or comprising, active material

43.

DOPED CATHODE MATERIAL PRECURSOR FROM RECYCLED LITHIUM-ION BATTERIES

      
Application Number 18120776
Status Pending
Filing Date 2023-03-13
First Publication Date 2024-09-19
Owner Ascend Elements, Inc. (USA)
Inventor
  • Liu, Yadong
  • Deng, Haixia
  • Gratz, Eric
  • Mistry, Dhiren
  • Parmar, Anil

Abstract

A battery recycling process aggregates a recycling stream including charge material metals from exhausted Li-ion batteries and generates recycled battery charge material having comparable or improved cycle life as well as recycled charge material precursor having fewer cracking defects using doping substances in a coprecipitation phase in the recycling sequence. In a coprecipitation process, a solution of comingled charge material metals is produced, the ratio of the charge material metals is adjusted based on recycled battery specifications, and a relatively small quantity of a doping salt is added.

IPC Classes  ?

  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

44.

DOPED CATHODE MATERIAL FROM RECYCLED LITHIUM-ION BATTERIES

      
Application Number 18120786
Status Pending
Filing Date 2023-03-13
First Publication Date 2024-09-19
Owner Ascend Elements, Inc. (USA)
Inventor
  • Liu, Yadong
  • Deng, Haixia
  • Gratz, Eric
  • Mistry, Dhiren
  • Parmar, Anil

Abstract

A battery recycling process aggregates a recycling stream including charge material metals from exhausted Li-ion batteries and generates recycled battery charge material having comparable or improved cycle life as well as recycled charge material precursor having fewer cracking defects using doping substances in a coprecipitation phase in the recycling sequence. In a coprecipitation process, a solution of comingled charge material metals is produced, the ratio of the charge material metals is adjusted based on recycled battery specifications, and a relatively small quantity of a doping salt is added.

IPC Classes  ?

45.

LITHIUM RECYCLING

      
Application Number US2024018913
Publication Number 2024/191754
Status In Force
Filing Date 2024-03-07
Publication Date 2024-09-19
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric
  • Tranape, Benoit

Abstract

A recycling method for generating purified lithium salts from a recycling stream of lithium-ion (Li-ion) batteries includes leaching black mass from the recycling stream in an aqueous solution of an oxidizing agent. Delithiated black mass is filtered from the aqueous solution to generate a Li-rich leach solution, which is subjected to nanofiltration to form a nanofiltration permeate from which the purified lithium salt is obtained.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 3/06 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions
  • C22B 26/12 - Obtaining lithium

46.

DOPED CATHODE MATERIAL PRECURSOR FROM RECYCLED LITHIUM-ION BATTERIES

      
Application Number US2023015115
Publication Number 2024/191412
Status In Force
Filing Date 2023-03-13
Publication Date 2024-09-19
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Liu, Yadong
  • Deng, Haixia
  • Gratz, Eric
  • Mistry, Dhiren
  • Parma, Anil

Abstract

A battery recycling process aggregates a recycling stream including charge material metals from exhausted Li-ion batteries and generates recycled battery charge material having comparable or improved cycle life as well as recycled charge material precursor having fewer cracking defects using doping substances in a coprecipitation phase in the recycling sequence. In a coprecipitation process, a solution of comingled charge material metals is produced, the ratio of the charge material metals is adjusted based on recycled battery specifications, and a relatively small quantity of a doping salt is added.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C01G 53/00 - Compounds of nickel
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 4/02 - Electrodes composed of, or comprising, active material

47.

DOPED CATHODE MATERIAL FROM RECYCLED LITHIUM-ION BATTERIES

      
Application Number US2023015117
Publication Number 2024/191413
Status In Force
Filing Date 2023-03-13
Publication Date 2024-09-19
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Liu, Yadong
  • Deng, Haixia
  • Gratz, Eric
  • Mistry, Dhiren
  • Parma, Anil

Abstract

A battery recycling process aggregates a recycling stream including charge material metals from exhausted Li-ion batteries and generates recycled battery charge material having comparable or improved cycle life as well as recycled charge material precursor having fewer cracking defects using doping substances in a coprecipitation phase in the recycling sequence. In a coprecipitation process, a solution of comingled charge material metals is produced, the ratio of the charge material metals is adjusted based on recycled battery specifications, and a relatively small quantity of a doping salt is added.

IPC Classes  ?

  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 47/00 - Obtaining manganese

48.

LITHIUM RECYCLING

      
Application Number 18598887
Status Pending
Filing Date 2024-03-07
First Publication Date 2024-09-12
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric
  • Tranape, Benoit

Abstract

A recycling method for generating purified lithium salts from a recycling stream of lithium-ion (Li-ion) batteries includes leaching black mass from the recycling stream in an aqueous solution of an oxidizing agent. Delithiated black mass is filtered from the aqueous solution to generate a Li-rich leach solution, which is subjected to nanofiltration to form a nanofiltration permeate from which the purified lithium salt is obtained.

IPC Classes  ?

49.

RECYCLED GRAPHITE FOR LI-ION BATTERIES

      
Application Number US2023013937
Publication Number 2024/181962
Status In Force
Filing Date 2023-02-27
Publication Date 2024-09-06
Owner
  • ASCEND ELEMENTS, INC. (USA)
  • MEXICHEM FLUOR INC. (USA)
Inventor
  • Tang, Yilun
  • Gratz, Eric
  • Ashour, Rakan
  • Venkataraman, Karthik

Abstract

A method of producing a purified graphite from a recycled battery stream for use in as anode material in Li-ion batteries is described. The method comprises a leaching step to obtain a precipitate comprising graphite by filtration, which is then iteratively roasted as a slurry with an aqueous solution of a hydroxide base and subsequently washed to form a purified graphite.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C01B 32/215 - PurificationRecovery or purification of graphite formed in iron making, e.g. kish graphite

50.

MICROSTRUCTURE TUNING OF CATHODE MATERIAL

      
Application Number 18113312
Status Pending
Filing Date 2023-02-23
First Publication Date 2024-08-29
Owner Ascend Elements, Inc. (USA)
Inventor
  • Liu, Yadong
  • Deng, Haixia
  • Gratz, Eric
  • Mistry, Dhiren
  • Parmar, Anil

Abstract

A recycling process for Lithium-ion (Li-ion) batteries includes a selective leach of charge material metals followed by impurity control for effecting microstructures such as a pore volume and surface area for optimal structures and charge performance. Particle characteristics having a favorable effect on performance correlate with soluble impurities in a recycling leach solution formed from spent charge material in a battery recycling stream. Spent batteries yield a black mass of agitated, comingled cathode material, anode material and current collectors. Leaching of the black mass yields a recycling solution of charge material metals and impurities. Selective adjustment of these impurities through adding and/or separating soluble ions in the solution drives formation of internal voids, surface area and pore volume in the resulting cathode material.

IPC Classes  ?

  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means
  • C22B 3/42 - Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

51.

RECYCLED GRAPHITE FOR LI-ION BATTERIES

      
Application Number 18114488
Status Pending
Filing Date 2023-02-27
First Publication Date 2024-08-29
Owner
  • Ascend Elements, Inc. (USA)
  • Mexichem Fluor Inc. (USA)
Inventor
  • Tang, Yilun
  • Gratz, Eric
  • Ashour, Rakan
  • Venkataraman, Karthik

Abstract

A method of producing a purified graphite from a recycled battery stream for use in as anode material in Li-ion batteries is described. The method comprises a leaching step to obtain a precipitate comprising graphite by filtration, which is then iteratively roasted as a slurry with an aqueous solution of a hydroxide base and subsequently washed to form a purified graphite.

IPC Classes  ?

  • C01B 32/215 - PurificationRecovery or purification of graphite formed in iron making, e.g. kish graphite
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

52.

Recycled Graphite for Li-Ion Batteries

      
Application Number 18427359
Status Pending
Filing Date 2024-01-30
First Publication Date 2024-08-29
Owner
  • Mexichem Fluor Inc. (USA)
  • Ascend Elements, Inc. (USA)
Inventor
  • Ashour, Rakan
  • Venkataraman, Karthik

Abstract

A method to recycle graphite from lithium and sodium-ion batteries. Graphite from the batteries first is treated in an aqueous solution of strong base at a temperature range between about 100° C. and about 250° C., a pressure range between about 0.9 bar and about 20 bar, at a solid-to-liquid ratio of from about 1-to-1 to about 1-to-4. The treated graphite is then washed, filtered, and then treated with a mineral acid (e.g., hydrochloric acid). The purified graphite is then coated with amorphous carbon at a weight percentage range between 0.5 wt % and about 20 wt %. The recycled graphite yielded by the method routinely achieves a purity >99.9%, a specific area of less than or equal to about 10 m2/g.

IPC Classes  ?

  • C01B 32/215 - PurificationRecovery or purification of graphite formed in iron making, e.g. kish graphite
  • B09B 3/70 - Chemical treatment, e.g. pH adjustment or oxidation
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • B09B 101/16 - Batteries

53.

MICROSTRUCTURE TUNING OF CATHODE MATERIAL

      
Application Number US2023013689
Publication Number 2024/177632
Status In Force
Filing Date 2023-02-23
Publication Date 2024-08-29
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Liu, Yadong
  • Deng, Haixia
  • Gratz, Eric
  • Mistry, Dhiren
  • Parma, Anil

Abstract

A recycling process for Lithium-ion (Li-ion) batteries includes a selective leach of charge material metals followed by impurity control for effecting microstructures such as a pore volume and surface area for optimal structures and charge performance. Particle characteristics having a favorable effect on performance correlate with soluble impurities in a recycling leach solution formed from spent charge material in a battery recycling stream. Spent batteries yield a black mass of agitated, comingled cathode material, anode material and current collectors. Leaching of the black mass yields a recycling solution of charge material metals and impurities. Selective adjustment of these impurities through adding and/or separating soluble ions in the solution drives formation of internal voids, surface area and pore volume in the resulting cathode material.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C01G 53/00 - Compounds of nickel
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 4/02 - Electrodes composed of, or comprising, active material

54.

AE elemental

      
Application Number 1797907
Status Registered
Filing Date 2024-05-22
Registration Date 2024-05-22
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,

Goods & Services

Chemicals for use in the manufacture of batteries; industrial chemicals. Collection of used and spent batteries for recycling. Material treatment services in connection with recycling; recycling of chemicals; recycling of scrap metal; recycling of used and spent batteries; treatment of materials in the nature of used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic.

55.

AE ELEMENTAL

      
Application Number 1796131
Status Registered
Filing Date 2024-04-05
Registration Date 2024-04-05
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,

Goods & Services

Chemicals for use in the manufacture of batteries; industrial chemicals. Collection of used and spent batteries for recycling. Material treatment services in connection with recycling; recycling of chemicals; recycling of scrap metal; recycling of used and spent batteries; treatment of materials in the nature of used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic.

56.

LITHIUM RECOVERY FROM LITHIUM-ION BATTERIES

      
Application Number 17990517
Status Pending
Filing Date 2022-11-18
First Publication Date 2024-05-23
Owner Ascend Elements, Inc. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

Recycling of charge material for an NMC (Ni, Mn, Co) battery recovers lithium from a recycled battery stream by roasting a black mass from the recycled stream in a partial oxygen environment at a temperature based on the thermal reduction of cathode material and reacting carbon in an anode material with lithium in the cathode material, and then leaching the lithium from the roasted black mass for forming a lithium leach solution. Lithium is recovered by heating the lithium leach solution, precipitating the lithium carbonate based on decreased solubility of the leached lithium carbonate at the increased temperature.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 1/02 - Roasting processes
  • C22B 3/04 - Extraction of metal compounds from ores or concentrates by wet processes by leaching
  • C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means
  • C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
  • C22B 26/12 - Obtaining lithium

57.

LITHIUM RECOVERY FROM LITHIUM-ION BATTERIES

      
Application Number US2022050478
Publication Number 2024/107207
Status In Force
Filing Date 2022-11-18
Publication Date 2024-05-23
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

Recycling of charge material for an NMC (Ni, Mn, Co) battery recovers lithium from a recycled battery stream by roasting a black mass from the recycled stream in a partial oxygen environment at a temperature based on the thermal reduction of cathode material and reacting carbon in an anode material with lithium in the cathode material, and then leaching the lithium from the roasted black mass for forming a lithium leach solution. Lithium is recovered by heating the lithium leach solution, precipitating the lithium carbonate based on decreased solubility of the leached lithium carbonate at the increased temperature.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
  • C22B 26/12 - Obtaining lithium
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C01D 15/08 - CarbonatesBicarbonates

58.

LITHIUM RECOVERY FROM LITHIUM-ION BATTERIES

      
Document Number 03216415
Status Pending
Filing Date 2023-10-13
Open to Public Date 2024-05-18
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

Recycling of charge material for an NMC (Ni, Mn, Co) battery recovers lithium from a recycled battery stream by roasting a black mass from the recycled stream in a partial oxygen environment at a temperature based on the thermal reduction of cathode material and reacting carbon in an anode material with lithium in the cathode material, and then leaching the lithium from the roasted black mass for forming a lithium leach solution. Lithium is recovered by heating the lithium leach solution, precipitating the lithium carbonate based on decreased solubility of the leached lithium carbonate at the increased temperature.

IPC Classes  ?

  • B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
  • C01D 15/00 - Lithium compounds
  • C22B 1/02 - Roasting processes
  • C22B 3/04 - Extraction of metal compounds from ores or concentrates by wet processes by leaching
  • C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 26/12 - Obtaining lithium
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

59.

NICKEL-RICH BATTERY RECYCLING

      
Document Number 03274193
Status Pending
Filing Date 2022-12-07
Open to Public Date 2024-04-04
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

IPC Classes  ?

  • C22B 26/12 - Obtaining lithium
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

60.

NICKEL-RICH BATTERY RECYCLING

      
Application Number US2022052123
Publication Number 2024/072434
Status In Force
Filing Date 2022-12-07
Publication Date 2024-04-04
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

A battery recycling process recovers lithium from nickel-rich cathode material in a recycling stream of end-of-life batteries. A dilute acid leach of a high nickel content cathode material contains a mixture of sulfuric acid based on a molar quantity of lithium in the cathode material. The highly selective leach generates a lithium rich solution with a small amount of nickel removable by nanofiltration to achieve a highly efficient recovery of the lithium contained in the recycling stream. A quantity of the leach acid based on the lithium content and a quantity of water based on a total black mass of the recycling stream results in a highly selective, near pure lithium leach when the recycling stream results from high nickel NMC batteries such as 811.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • C22B 26/12 - Obtaining lithium
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof

61.

AE ELEMENTAL

      
Serial Number 98484122
Status Registered
Filing Date 2024-04-04
Registration Date 2025-12-02
Owner Ascend Elements, Inc. ()
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,

Goods & Services

Chemicals for use in the manufacture of batteries; Industrial chemicals Collection of used and spent batteries for recycling Material treatment services in connection with recycling; Recycling of chemicals; Recycling of scrap metal; Recycling of used and spent batteries; Treatment of materials in the nature of used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic

62.

Nickel-metal hydride (NiMH) battery recycling

      
Application Number 17957753
Grant Number 12597652
Status In Force
Filing Date 2022-09-30
First Publication Date 2024-04-04
Grant Date 2026-04-07
Owner Ascend Elements, Inc. (USA)
Inventor
  • Kim, Kee-Chan
  • Eggert, Matthew

Abstract

Recycling of nickel-metal hydride (NiMH) batteries extracts substantially pure nickel based on adding a leach agent to granular cathode material resulting from agitation of the NiMH batteries to form a leach solution. A pH of the leach solution is maintained for precipitating iron, aluminum and lanthanide rare earth elements (REE) for yielding a nickel solution for forming a cathode material precursor in a recycled battery, often with a high nickel content.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof

63.

Nickel-rich battery recycling

      
Application Number 17964412
Grant Number 12040463
Status In Force
Filing Date 2022-10-12
First Publication Date 2024-04-04
Grant Date 2024-07-16
Owner Ascend Elements, Inc. (USA)
Inventor
  • Kim, Kee-Chan
  • Gratz, Eric

Abstract

A battery recycling process recovers lithium from nickel-rich cathode material in a recycling stream of end-of-life batteries. A dilute acid leach of a high nickel content cathode material contains a mixture of sulfuric acid based on a molar quantity of lithium in the cathode material. The highly selective leach generates a lithium rich solution with a small amount of nickel removable by nanofiltration to achieve a highly efficient recovery of the lithium contained in the recycling stream. A quantity of the leach acid based on the lithium content and a quantity of water based on a total black mass of the recycling stream results in a highly selective, near pure lithium leach when the recycling stream results from high nickel NMC batteries such as 811.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 26/12 - Obtaining lithium

64.

NICKEL-METAL HYDRIDE (NIMH) BATTERY RECYCLING

      
Application Number US2022052127
Publication Number 2024/072435
Status In Force
Filing Date 2022-12-07
Publication Date 2024-04-04
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Kim, Kee-Chan
  • Eggert, Matthew

Abstract

Recycling of nickel-metal hydride (NiMH) batteries extracts substantially pure nickel based on adding a leach agent to granular cathode material resulting from agitation of the NiMH batteries to form a leach solution. A pH of the leach solution is maintained for precipitating iron, aluminum and lanthanide rare earth elements (REE) for yielding a nickel solution for forming a cathode material precursor in a recycled battery, often with a high nickel content.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • H01M 10/34 - Gastight accumulators
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 59/00 - Obtaining rare earth metals

65.

AE ASCEND ELEMENTS

      
Application Number 1781866
Status Registered
Filing Date 2024-01-18
Registration Date 2024-01-18
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals for use in the manufacture of batteries; industrial chemicals. Anodes; cathodes. Collection of used/spent batteries for recycling. Material treatment services in connection with recycling; recycling of chemicals; recycling of scrap metal; recycling of used/spent batteries; treatment of materials in the nature of used/spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic. Engineering design services; engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials.

66.

AE ELEMENTAL

      
Serial Number 98468172
Status Registered
Filing Date 2024-03-26
Registration Date 2025-06-03
Owner Ascend Elements, Inc. ()
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 39 - Transport, packaging, storage and travel services

Goods & Services

Chemicals for use in the manufacture of batteries; Industrial chemicals Material treatment services in connection with recycling; Recycling of chemicals; Recycling of scrap metal; Recycling of used and spent batteries; Treatment of materials in the nature of used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic Collection of used and spent batteries for recycling

67.

FORCED DISCHARGE FOR BATTERIES

      
Application Number US2023032424
Publication Number 2024/054684
Status In Force
Filing Date 2023-09-11
Publication Date 2024-03-14
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Danielson, Douglas
  • Davis, Gregory

Abstract

A method for discharging end-of-life batteries prior to dismantling and recycling involves recovering residual stored electrical energy by draining the battery to a zero charge state, and reverse biasing the battery to bring the potential from a zero charge state of around 2.7 V to a zero or near zero energy state. The reverse bias inverts the normal usage polarity for inducing a reverse current flow, and continues based on formation of internal short circuits formed on the cathode current collector for rendering the battery with little to no energy storage for safe agitation and dismantling.

IPC Classes  ?

  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • 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]

68.

FORCED DISCHARGE FOR BATTERIES

      
Application Number 18244745
Status Pending
Filing Date 2023-09-11
First Publication Date 2024-03-14
Owner Ascend Elements, Inc. (USA)
Inventor
  • Danielson, Jr., William D.
  • Davis, Gregory

Abstract

A method for discharging end-of-life batteries prior to dismantling and recycling involves recovering residual stored electrical energy by draining the battery to a zero charge state, and reverse biasing the battery to bring the potential from a zero charge state of around 2.7 V to a zero or near zero energy state. The reverse bias inverts the normal usage polarity for inducing a reverse current flow, and continues based on formation of internal short circuits formed on the cathode current collector for rendering the battery with little to no energy storage for safe agitation and dismantling.

IPC Classes  ?

  • H01M 10/44 - Methods for charging or discharging
  • G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables

69.

AE ASCEND ELEMENTS

      
Application Number 1779445
Status Registered
Filing Date 2024-01-18
Registration Date 2024-01-18
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals for use in the manufacture of batteries; industrial chemicals. Anodes; cathodes. Collection of used/spent batteries for recycling. Material treatment services in connection with recycling; recycling of chemicals; recycling of scrap metal; recycling of used/spent batteries; treatment of materials in the nature of used/spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic. Engineering design services; engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials.

70.

AE ASCEND ELEMENTS

      
Serial Number 98212492
Status Registered
Filing Date 2023-10-06
Registration Date 2025-02-11
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals for use in the manufacture of batteries; Industrial chemicals; Anode active materials and precursors to anode active materials used to make anodes, and cathode active materials and precursors to cathode active materials used to make cathodes, all marketed and sold to battery manufacturers Collection of used and spent batteries for recycling Material treatment services in connection with recycling; Recycling of chemicals; Recycling of scrap metal; Recycling of used and spent batteries; Treatment of materials obtained from used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic Engineering design services; Engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials

71.

AE ASCEND ELEMENTS

      
Serial Number 98208129
Status Registered
Filing Date 2023-10-03
Registration Date 2025-02-11
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals for use in the manufacture of batteries; Industrial chemicals; Anode active materials and precursors to anode active materials used to make anodes, and cathode active materials and precursors to cathode active materials used to make cathodes, all marketed and sold to battery manufacturers Collection of used and spent batteries for recycling Material treatment services in connection with recycling; Recycling of chemicals; Recycling of scrap metal; Recycling of used and spent batteries; Treatment of materials obtained from used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic Engineering design services; Engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials

72.

Lithium iron phosphate (LFP) battery recycling

      
Application Number 17879059
Grant Number 12071677
Status In Force
Filing Date 2022-08-02
First Publication Date 2023-02-09
Grant Date 2024-08-27
Owner Ascend Elements, Inc. (USA)
Inventor
  • Gratz, Eric
  • Kim, Kee-Chan

Abstract

4) batteries to form a leach solution; filtering the leach solution to remove a residue and obtain a lithium rich solution; modifying pH of the lithium rich solution for filtering impurities and obtaining a purified Li solution; and adding a precipitant to the purified Li solution thereby precipitating a lithium compound.

IPC Classes  ?

  • C22B 26/12 - Obtaining lithium
  • C22B 1/00 - Preliminary treatment of ores or scrap
  • C22B 3/06 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions

73.

LITHIUM IRON PHOSPHATE (LFP) BATTERY RECYCLING

      
Application Number US2022074410
Publication Number 2023/015171
Status In Force
Filing Date 2022-08-02
Publication Date 2023-02-09
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Gratz, Eric
  • Kim, Kee-Chan

Abstract

44) batteries to form a leach solution; filtering the leach solution to remove a residue and obtain a lithium rich solution; modifying pH of the lithium rich solution for filtering impurities and obtaining a purified Li solution; and adding a precipitant to the purified Li solution thereby precipitating a lithium compound.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 26/12 - Obtaining lithium
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates

74.

RECYCLING ALL SOLID-STATE BATTERIES (ASSBs) AND ANODE RECOVERY

      
Application Number US2022035079
Publication Number 2022/272162
Status In Force
Filing Date 2022-06-27
Publication Date 2022-12-29
Owner ASCEND ELEMENTS, INC. (USA)
Inventor
  • Gratz, Eric
  • Wang, Yan

Abstract

A method for recycling All solid state batteries (ASSBs), the method including: receiving a recycling stream of ASSBs comprising an electrolyte comingled with at least one charge material; introducing a passivating substance for neutralizing an undesired reaction or discharge of the charge materials from the batteries defining the recycling stream; agitating the batteries in the recycling stream in the presence of the passivating substance for liberating the charge materials and electrolyte stored therein; and recovering the charge material and the electrolyte from the agitated batteries, and such that the passivating substance combines with the agitated batteries for generating a beneficial product thereby recycling ASSBs.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 26/12 - Obtaining lithium
  • C22B 23/02 - Obtaining nickel or cobalt by dry processes
  • H01M 10/052 - Li-accumulators
  • H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy

75.

Recycling all solid-state batteries (ASSBs) and anode recovery

      
Application Number 17849992
Grant Number 12620643
Status In Force
Filing Date 2022-06-27
First Publication Date 2022-12-29
Grant Date 2026-05-05
Owner Ascend Elements, Inc. (USA)
Inventor
  • Gratz, Eric
  • Wang, Yan

Abstract

A method for recycling All solid state batteries (ASSBs), the method including: receiving a recycling stream of ASSBs comprising an electrolyte comingled with at least one charge material; introducing a passivating substance for neutralizing an undesired reaction or discharge of the charge materials from the batteries defining the recycling stream; agitating the batteries in the recycling stream in the presence of the passivating substance for liberating the charge materials and electrolyte stored therein; and recovering the charge material and the electrolyte from the agitated batteries, and such that the passivating substance combines with the agitated batteries for generating a beneficial product thereby recycling ASSBs.

IPC Classes  ?

76.

HYDRO-TO-CATHODE

      
Application Number 1663583
Status Registered
Filing Date 2022-05-04
Registration Date 2022-05-04
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals for use in the manufacture of batteries; industrial chemicals. Anodes; cathodes. Collection of used/spent batteries for recycling. Material treatment services in connection with recycling; recycling of chemicals; recycling of scrap metal; recycling of used/spent batteries; treatment of materials in the nature of used/spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic; upcycling in the nature of waste recycling. Engineering design services; engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials.

77.

AE

      
Application Number 1663540
Status Registered
Filing Date 2022-04-22
Registration Date 2022-04-22
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals for use in the manufacture of batteries; industrial chemicals. Anodes; cathodes. Collection of used/spent batteries for recycling. Material treatment services in connection with recycling; recycling of chemicals; recycling of scrap metal; recycling of used/spent batteries; treatment of materials in the nature of used/spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic. Engineering design services; engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials.

78.

HYDRO-TO-CATHODE

      
Application Number 218950800
Status Registered
Filing Date 2022-05-04
Registration Date 2024-11-08
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

(1) Chemicals for use in the manufacture of batteries; (2) Anodes; cathodes. (1) Collection of used and spent batteries for recycling. (2) Recycling of chemicals; recycling of scrap metal; recycling of used and spent batteries; treatment of materials in the nature of used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic; upcycling in the nature of waste recycling. (3) Engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials.

79.

AE A E

      
Application Number 218824500
Status Registered
Filing Date 2022-04-22
Registration Date 2025-07-11
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

(1) Chemicals for use in the manufacture of lithium ion batteries; catalysts, namely metal catalyst materials, for use in the manufacture of batteries. (2) Anodes; cathodes. (1) Collection of used/spent batteries for recycling. (2) Recycling of chemicals; recycling of scrap metal; recycling of used/spent batteries; treatment of materials in the nature of used/spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic. (3) Engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials.

80.

Ascend Elements

      
Application Number 1656343
Status Registered
Filing Date 2022-03-02
Registration Date 2022-03-02
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals for use in the manufacture of batteries; industrial chemicals. Anodes; Cathodes. Collection of used/spent batteries for recycling. Material treatment services in connection with recycling; recycling of chemicals; recycling of scrap metal; recycling of used/spent batteries; treatment of materials in the nature of used/spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic; upcycling in the nature of waste recycling. Engineering design services; engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials.

81.

Ascend Elements

      
Application Number 217933400
Status Registered
Filing Date 2022-03-02
Registration Date 2024-12-13
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

(1) Chemicals for use in the manufacture of batteries (2) Anodes; Cathodes. (1) Collection of used and spent batteries for recycling. (2) Recycling of chemicals; recycling of scrap metal; recycling of used and spent batteries; treatment of materials in the nature of used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic (3) Engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials.

82.

HYDRO-TO-ANODE

      
Serial Number 97237344
Status Registered
Filing Date 2022-01-25
Registration Date 2023-04-04
Owner Ascend Elements, Inc. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals for use in the manufacture of batteries; Industrial chemicals Cathodes; Anodes Collection of used and spent batteries for recycling Material treatment services in connection with recycling; Recycling of chemicals; Recycling of scrap metal; Recycling of used and spent batteries; Treatment of materials in the nature of used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic; Upcycling in the nature of waste recycling Engineering design services; Engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials

83.

Graphite recovery in recycled batteries

      
Application Number 17341616
Grant Number 12463266
Status In Force
Filing Date 2021-06-08
First Publication Date 2021-12-09
Grant Date 2025-11-04
Owner Ascend Elements, Inc. (USA)
Inventor
  • Gratz, Eric
  • Zheng, Zhangfeng

Abstract

A method for recycling anode materials from a comingled recycling stream derived from exhausted Li ion batteries includes receiving a precipitate quantity remaining from a cathode recycling stream. This precipitate is almost exclusively graphite used for the anode material in the recycled batteries. The precipitate results from an acid leach of charge material from the lithium battery recycling stream. A strong acid is added to the precipitate for removal of residual cathode and separator materials and the mixture heated. The strong acid removes residual aluminum oxide from the separator by transformation to aluminum sulfate. Washing the acid treated precipitate removes water soluble contaminants, such as the aluminum sulfate reacted from the aluminum oxide and sulfuric acid, to generate substantially pure graphite. Any residual material remaining from the cathode recycling phase is also removed.

IPC Classes  ?

  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators
  • C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
  • C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
  • C22B 47/00 - Obtaining manganese
  • H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

84.

AE

      
Serial Number 97111239
Status Registered
Filing Date 2021-11-05
Registration Date 2023-05-09
Owner ASCEND ELEMENTS, INC. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals for use in the manufacture of batteries; Industrial chemicals Anodes; Cathodes Collection of used and spent batteries for recycling Material treatment services in connection with recycling; Recycling of chemicals; Recycling of scrap metal; Recycling of used and spent batteries; Treatment of materials in the nature of used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic Engineering design services; Engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials

85.

HYDRO-TO-CATHODE

      
Serial Number 97109220
Status Registered
Filing Date 2021-11-04
Registration Date 2023-03-14
Owner ASCEND ELEMENTS, INC. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals for use in the manufacture of batteries; Industrial chemicals Anodes; Cathodes Collection of used and spent batteries for recycling Material treatment services in connection with recycling; Recycling of chemicals; Recycling of scrap metal; Recycling of used and spent batteries; Treatment of materials in the nature of used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic; Upcycling in the nature of waste recycling Engineering design services; Engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials

86.

ASCEND ELEMENTS

      
Serial Number 97095823
Status Registered
Filing Date 2021-10-27
Registration Date 2023-04-25
Owner ASCEND ELEMENTS, INC. (USA)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 09 - Scientific and electric apparatus and instruments
  • 39 - Transport, packaging, storage and travel services
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Chemicals for use in the manufacture of batteries; Industrial chemicals Anodes; Cathodes Collection of used and spent batteries for recycling Material treatment services in connection with recycling; Recycling of chemicals; Recycling of scrap metal; Recycling of used and spent batteries; Treatment of materials in the nature of used and spent battery recycling, namely, battery cathode and anode active materials, lithium metal oxide, lithium metal phosphate, and graphitic carbon powders, cobalt sulfate, nickel sulfate, manganese sulfate powder, lithium carbonate, lithium hydroxide, metal hydroxide powder, organic solvents, carbonate solvents, fluorinated compounds for use in battery-related materials, shredded copper, shredded aluminum, shredded steel, and shredded plastic; Upcycling in the nature of waste recycling Engineering design services; Engineering services, namely, engineering for the development and mass production of battery materials, ceramic materials, and metallic materials