A method for manufacturing electrodes includes, by an extruder that receives powder, mixing the powder to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, and kneading the dough to form a fibrillated dough. The method further includes, by calender rollers, calendering chunks of the fibrillated dough to a target thickness to form a continuous plaque, by a laminating machine, laminating the plaque to opposite sides of a metal substrate to form a continuous electrode preform, by a dryer, drying the continuous electrode preform to form a dry continuous electrode preform, and by a cutting machine, sectioning the dry continuous electrode preform into electrodes.
A method for manufacturing electrodes includes mixing a powder to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, kneading the dough to form a fibrillated dough, and outputting segments of the fibrillated dough. The method also includes processing the segments into a continuous plaque, drying the continuous plaque to form an active material sheet, laminating portions of the active material sheet to a current collector substrate to form an electrode blank, and sectioning the electrode blank into electrodes.
A pouch cell includes an electrode assembly and a body forming a gas headspace within the pouch. Tabs of the electrode assembly may extend through or around the body and out of the pouch. Gas from the electrode assembly may collect in the gas headspace. The body may accommodate a vent mechanism that also extends out of the pouch.
H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their position inside the cells
H01M 50/178 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
H01M 50/477 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their shape
H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
4.
CERIA COATINGS AND STRUCTURES FOR ZINC-BASED BATTERY SEPARATORS
A zinc-based battery includes a non-sintered separator system including a polymer separator and a coating on the polymer separator. The coating includes cellulose acetate that prevents metallic zinc penetration into the separator, and ceria bound with the cellulose acetate that chemically oxidizes metallic zinc to zinc oxide.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
5.
SECONDARY AQUEOUS BATTERY ELECTRODES INCLUDING VINYL ACETATE-ETHYLENE
A green secondary electrode includes a conductive substrate, active material and material additives in direct contact with the conductive substrate, and a combination of vinyl acetate-ethylene and methylcellulose-based additive binding the conductive substrate, active materials, and material additives together. The green secondary electrode may be a positive electrode or a negative electrode.
A method for manufacturing electrodes includes, by an extruder that receives powder, mixing the powder to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, and kneading the dough to form a fibrillated dough. The method further includes, by calender rollers, calendering chunks of the fibrillated dough to a target thickness to form a continuous plaque, by a laminating machine, laminating the plaque to opposite sides of a metal substrate to form a continuous electrode preform, by a dryer, drying the continuous electrode preform to form a dry continuous electrode preform, and by a cutting machine, sectioning the dry continuous electrode preform into electrodes.
A secondary battery recombination system includes catalyst and hydrophobic gas diffusion layers defining an electrode that recombines hydrogen and oxygen into water, and a scaffold encapsulating and in non-bonded contact with the electrode. The electrode may be carbon cloth, carbon felt, carbon foam, or carbon paper. The scaffold may be expanded metal or perforated foil.
A method for manufacturing zinc negative electrodes includes mixing a powder including zinc with polytetrafluoroethylene to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, kneading the dough to form a fibrillated dough, and extruding the fibrillated dough through a die to form a ribbon. The method also includes calendering the ribbon to a target thickness to form a plaque, drying the plaque to form an active material sheet, laminating portions of the active material sheet to a current collector substrate such that the current collector substrate is sandwiched between the portions to form an electrode blank, and sectioning the electrode blank into zinc negative electrodes.
A method for manufacturing electrodes includes mixing a powder to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, kneading the dough to form a fibrillated dough, and outputting segments of the fibrillated dough. The method also includes processing the segments into a continuous plaque, drying the continuous plaque to form an active material sheet, laminating portions of the active material sheet to a current collector substrate to form an electrode blank, and sectioning the electrode blank into electrodes.
A zinc-based battery includes a non-sintered separator system including a polymer separator and a coating on the polymer separator. The coating includes cellulose acetate that prevents metallic zinc penetration into the separator, and ceria bound with the cellulose acetate that chemically oxidizes metallic zinc to zinc oxide.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
11.
Secondary aqueous battery electrodes including vinyl acetate-ethylene
A green secondary electrode includes a conductive substrate, active material and material additives in direct contact with the conductive substrate, and a combination of vinyl acetate-ethylene and methylcellulose-based additive binding the conductive substrate, active materials, and material additives together. The green secondary electrode may be a positive electrode or a negative electrode.
A metal air battery cell has a sealed pouch defined by a metallocene film and a gas and liquid impermeable flexible layer, and an electrochemical cell contained within the pouch. The metallocene film and gas and liquid impermeable flexible layer are sealed to each other and around the electrochemical cell.
A metal air battery cell has a sealed pouch defined by a metallocene film and a gas and liquid impermeable flexible layer, and an electrochemical cell contained within the pouch. The metallocene film and gas and liquid impermeable flexible layer are sealed to each other and around the electrochemical cell.
A metal air battery cell has a sealed pouch defined by a metallocene film and a gas and liquid impermeable flexible layer, and an electrochemical cell contained within the pouch. The metallocene film and gas and liquid impermeable flexible layer are sealed to each other and around the electrochemical cell.
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
H01M 50/186 - Sealing members characterised by the disposition of the sealing members
15.
Battery state indicator based on recombination device feedback
An aqueous battery system includes an electrode assembly, a recombination device, and a controller. The recombination device has a catalyst that combines hydrogen and oxygen produced by the electrode assembly to form water and generate heat via exothermic reaction. The controller, responsive to a detected temperature or change in temperature associated with the recombination device due to the heat, changes power supplied to the electrode assembly.
H01M 10/6595 - Means for temperature control structurally associated with the cells by chemical reactions other than electrochemical reactions of the cells, e.g. catalytic heaters or burners
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
An aqueous battery system includes an electrode assembly, a recombination device, and a controller. The recombination device has a catalyst that combines hydrogen and oxygen produced by the electrode assembly to form water and generate heat via exothermic reaction. The controller, responsive to a detected temperature or change in temperature associated with the recombination device due to the heat, changes power supplied to the electrode assembly.
A method for manufacturing zinc negative electrodes includes mixing a powder including zinc with polytetrafluoroethylene to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, kneading the dough to form a fibrillated dough, and extruding the fibrillated dough through a die to form a ribbon. The method also includes calendering the ribbon to a target thickness to form a plaque, drying the plaque to form an active material sheet, laminating portions of the active material sheet to a current collector substrate to form an electrode blank, and sectioning the electrode blank into zinc negative electrodes.
An electrochemical component has a green secondary electrode including a conductive substrate, homogeneous pre-synthesized calcium zincate in direct contact with the conductive substrate, and a combination of styrene-butadiene rubber and sintered polytetrafluoroethylene binding the conductive substrate and calcium zincate together.
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
A secondary battery recombination system includes catalyst and hydrophobic gas diffusion layers defining an electrode that recombines hydrogen and oxygen into water, and a scaffold encapsulating and in non-bonded contact with the electrode. The electrode may be carbon cloth, carbon felt, carbon foam, or carbon paper. The scaffold may be expanded metal or perforated foil.
A method for manufacturing zinc negative electrodes includes mixing a powder including zinc with polytetrafluoroethylene to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, kneading the dough to form a fibrillated dough, and extruding the fibrillated dough through a die to form a ribbon. The method also includes calendering the ribbon to a target thickness to form a plaque, drying the plaque to form an active material sheet, laminating portions of the active material sheet to a current collector substrate such that the current collector substrate is sandwiched between the portions to form an electrode blank, and sectioning the electrode blank into zinc negative electrodes.
An electrode includes a current collector, a metal shell in direct contact with and encapsulating the current collector, green dendritic columnar growths extending out of the metal shell and having protrusions thereon, and active material in contact with the metal shell and having embedded therein the green dendritic columnar growths. The protrusions penetrate the active material to form a mechanical retainer that prevents delamination of the active material from the metal shell and define localized regions of increased current density during operation of the electrode that promote deposition of the active material first on the protrusions and then on areas of the green dendritic columnar growths adjacent to the protrusions such that the active material electrochemically adheres to the green dendritic columnar growths and the protrusions enlarge during repeated charge and discharge cycling of the electrode.
An electrode includes a current collector, a metal shell in direct contact with and encapsulating the current collector, green dendritic columnar growths extending out of the metal shell and having protrusions thereon, and active material in contact with the metal shell and having embedded therein the green dendritic columnar growths. The protrusions penetrate the active material to form a mechanical retainer that prevents delamination of the active material from the metal shell and define localized regions of increased current density during operation of the electrode that promote deposition of the active material first on the protrusions and then on areas of the green dendritic columnar growths adjacent to the protrusions such that the active material electrochemically adheres to the green dendritic columnar growths and the protrusions enlarge during repeated charge and discharge cycling of the electrode.
Monobloc batteries include compartments containing cells. Terminals extend into the compartments and are electrically connected with the cells via tabs. The tabs are folded to form bent stacks and include openings in partial registration with each other. The terminals extend through the openings and are secured to the tabs. The terminals are off-center relative to the compartments to preserve space for the bent stacks.
Monobloc batteries include compartments containing cells. Terminals extend into the compartments and are electrically connected with the cells via tabs. The tabs are folded to form bent stacks and include openings in partial registration with each other. The terminals extend through the openings and are secured to the tabs. The terminals are off-center relative to the compartments to preserve space for the bent stacks.
Monobloc batteries include compartments containing cells. Terminals extend into the compartments and are electrically connected with the cells via tabs. The tabs are folded to form bent stacks and include openings in partial registration with each other. The terminals extend through the openings and are secured to the tabs. The terminals are off-center relative to the compartments to preserve space for the bent stacks.
A zinc alkaline secondary battery includes a positive electrode, a negative electrode including a multi-valent oxide species, a separator system disposed between the electrodes, and an alkaline electrolyte in contact with the negative electrode. The alkaline electrolyte includes hexametaphosphate salt and zinc acetate. Ligands from the hexametaphosphate salt and zinc acetate are anchored to the negative electrode via chelation sites created by the multi-valent oxide species.
A battery cell includes an electrode assembly having a negative electrode, positive electrode, and separator bathed in an alkaline electrolyte, a pouch encapsulating the electrode assembly, and first and second tabs respectively extending from the positive and negative electrodes through the pouch. The first tab has thereon a coating including acrylic paint and the second tab has thereon a coating including lacquer to discourage creepage of the alkaline electrolyte along the first and second tabs and out of the pouch.
A zinc alkaline secondary battery includes a positive electrode, a negative electrode including a multi-valent oxide species, a separator system disposed between the electrodes, and an alkaline electrolyte in contact with the negative electrode. The alkaline electrolyte includes hexametaphosphate salt and zinc acetate. Ligands from the hexametaphosphate salt and zinc acetate are anchored to the negative electrode via chelation sites created by the multi-valent oxide species.
A battery cell includes an electrode assembly having a negative electrode, positive electrode, and separator bathed in an alkaline electrolyte, a pouch encapsulating the electrode assembly, and first and second tabs respectively extending from the positive and negative electrodes through the pouch. The first tab has thereon a coating including acrylic paint and the second tab has thereon a coating including lacquer to discourage creepage of the alkaline electrolyte along the first and second tabs and out of the pouch.
A metal-air battery cell includes an electrode assembly and a sealed pouch. The electrode assembly includes an air electrode, a negative electrode, a separator in contact with and disposed between the electrodes, and a hydrophobic gas diffusion layer in contact with a side of the air electrode opposite the separator. The pouch envelops the electrode assembly and contains an electrolyte therein. The pouch is defined by a gas permeable hydrophobic flexible layer in contact with the hydrophobic gas diffusion layer. The electrode assembly further includes a terminal extending from and away at least one of the electrodes, and through the pouch. Opposing sides of the pouch are sealed to each other and around the terminal.
An electrode assembly includes an electrode saturated with electrolyte, and one or more ionically conductive and electronically insulating cellulose acetate coatings forming a continuous and conformal film adhered to and encapsulating the electrode.
An electrode assembly includes an electrode saturated with electrolyte, and one or more ionically conductive and electronically insulating cellulose acetate coatings forming a continuous and conformal film adhered to and encapsulating the electrode.
An anode of a battery includes active material particles each coated with a metal oxide to form a nanoscale conformal shell there around. The shells are configured to, during charge, confine reduction of the active material particles to within the shells and to prevent dendritic growth and shape change.
A metal-air battery cell includes an electrode assembly and a sealed pouch. The electrode assembly includes an air electrode, a negative electrode, a separator in contact with and disposed between the electrodes, and a hydrophobic gas diffusion layer in contact with a side of the air electrode opposite the separator. The pouch envelops the electrode assembly and contains an electrolyte therein. The pouch is defined by a gas permeable hydrophobic flexible layer in contact with the hydrophobic gas diffusion layer, and a gas and liquid impermeable flexible layer in contact with the negative electrode. The electrode assembly further includes a terminal extending from and away at least one of the electrodes, and through the pouch. The layers of the pouch are sealed to each other and around the terminal.
A metal-air battery cell includes an electrode assembly and a sealed pouch. The electrode assembly includes an air electrode, a negative electrode, a separator in contact with and disposed between the electrodes, and a hydrophobic gas diffusion layer in contact with a side of the air electrode opposite the separator. The pouch envelops the electrode assembly and contains an electrolyte therein. The pouch is defined by a gas permeable hydrophobic flexible layer in contact with the hydrophobic gas diffusion layer, and a gas and liquid impermeable flexible layer in contact with the negative electrode. The electrode assembly further includes a terminal extending from and away at least one of the electrodes, and through the pouch. The layers of the pouch are sealed to each other and around the terminal.
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
H01M 2/18 - Separators; Membranes; Diaphragms; Spacing elements characterised by the shape
A portable electronics device includes a case, an electrical plane disposed within the case, and a laminated self-supporting uncontained air breathing membrane electrode assembly (MEA). The MEA includes an air positive electrode, a metal negative electrode, and a solid electrolyte in ionic communication with the electrodes. This arrangement, in certain circumstances, does not require a dedicated casing to surround the MEA-reducing a thickness of the device.
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
G12B 15/04 - Cooling by currents of fluid, e.g. air, in open cycle
A positive electrode may include an electrically conductive scaffold, conductive catalytic A-site deficient perovskite particles chemically bonded to the scaffold, an ion and gas permeable ionomer connecting the particles, and a hydrophobic porous layer on the scaffold. A secondary air electrode may include conductive bi-functional catalytic A-site deficient perovskite particles including AI-site lanthanum cations and AII-site alkaline earth metal cations, an ion and gas permeable ionomer connecting the particles, and a conductive scaffold in electrical contact with the particles.
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
A membrane electrode assembly includes a gas diffusion layer, a catalytic layer in fluid communication with the gas diffusion layer, an anodic layer and a bipolar solid electrolyte disposed between the catalytic and anodic layers. The bipolar solid electrolyte inhibits carbonate formation in air breathing alkaline cells and inhibits dendritic growth between the anodic and catalytic layers.
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
A metal-air battery according to the present disclosure includes an electrode assembly with a first electrode layer having a length and being folded lengthwise, and a gas diffusion layer having a length that is approximately half the length of the first electrode layer. Furthermore, the gas diffusion layer is positioned proximate the first electrode layer or between first and second portions of the first electrode layer.
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
II-site alkaline earth metal cations, an ion and gas permeable ionomer connecting the particles, and a conductive scaffold in electrical contact with the particles.
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
41.
METAL-AIR BATTERY AND GAS IMPERMEABLE ANODIC CONDUCTIVE MATRIX
A metal-air battery includes a canister and a spiral wound electrode assembly disposed within the canister. The electrode assembly includes an ion permeable and substantially gas impermeable anode, a catalytic cathode, and a dielectric separator disposed between the anode and cathode.
A metal-air battery includes a canister and a spiral wound electrode assembly disposed within the canister. The electrode assembly includes an ion permeable and substantially gas impermeable anode, a catalytic cathode, and a dielectric separator disposed between the anode and cathode.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
H01M 12/08 - Hybrid cellsManufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
43.
Metal-air battery and gas impermeable anodic conductive matrix
A metal-air battery includes a canister and a spiral wound electrode assembly disposed within the canister. The electrode assembly includes an ion permeable and substantially gas impermeable anode, a catalytic cathode, and a dielectric separator disposed between the anode and cathode.
H01M 8/22 - Fuel cells in which the fuel is based on materials comprising carbon or oxygen or hydrogen and other elementsFuel cells in which the fuel is based on materials comprising only elements other than carbon, oxygen or hydrogen
H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
H01M 4/60 - Selection of substances as active materials, active masses, active liquids of organic compounds
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
09 - Scientific and electric apparatus and instruments
Goods & Services
Batteries; Battery packs; Dry cells and batteries; Electric storage batteries; Electrical cells and batteries; Renewable battery system to provide backup power
09 - Scientific and electric apparatus and instruments
Goods & Services
Batteries; Battery packs; Dry cells and batteries; Electric storage batteries; Electrical cells and batteries; Renewable battery system to provide backup power
