A method of operating a solid oxide electrolysis cell (SOEC) system at partial load, the SOEC system including a plurality of branches each including at least one SOEC stack, includes determining a thermally neutral target voltage and cycling an ON phase and an OFF phase for each of the branches such that the SOEC system operates at an average operating power equal to a chosen percentage of the operating power at the thermally neutral target voltage. In the ON phase, the SOEC stacks in a given branch operate at the thermally neutral target voltage, and in the OFF phase, the SOEC stacks in the given branch are unloaded to an open circuit voltage and operate at 0% of rated power. The frequency of OFF phases for each branch is determined such that stronger or healthier branches have a lower frequency of OFF cycles than weaker or less healthy branches.
A solid oxide cell includes a porous solid cathode layer including a first cathode surface and a second cathode surface; a solid electrolyte layer including a first electrolyte surface and a second electrolyte surface, with the first electrolyte surface disposed toward the second cathode surface; a porous cermet anode functional layer (AFL) including a first AFL surface and a second AFL surface, the first AFL surface contacting the second electrolyte surface; a porous cermet anode substrate (AS) including a first AS surface and a second AS surface, the first AS surface contacting the second AFL surface; and a porous cermet oxidation barrier layer (OBL) including a first OBL surface and a second OBL surface, the first OBL surface contacting the second AS surface.
H01M 8/1213 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
H01M 8/1246 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
3.
HYBRID RECYCLE FUEL CELL/ELECTROLYSIS SYSTEM FOR HIGH EFFICIENCY
A solid oxide fuel cell system includes a first fuel cell stack including a first anode section and a first cathode section. The first anode section is configured to receive an input stream including fuel, and to output a first output stream including residual fuel and water. A second fuel cell stack includes a second anode section and a second cathode section. The second anode section is configured to receive a mixed stream and to output a second output stream including residual fuel and water. Each of the first and second cathode section is configured to receive inlet air and to output exhaust air. A separating junction is configured to receive and separate the second output stream into a recycle stream and an exhaust stream. A combining junction is configured to receive the first output stream and the recycle stream, and to combine these streams to output the mixed stream.
A solid oxide fuel cell system includes a first fuel cell stack including a first anode section and a first cathode section. The first anode section is configured to receive an input stream including fuel, and to output a first output stream including residual fuel and water. A second fuel cell stack includes a second anode section and a second cathode section. The second anode section is configured to receive a mixed stream and to output a second output stream including residual fuel and water. Each of the first and second cathode section is configured to receive inlet air and to output exhaust air. A separating junction is configured to receive and separate the second output stream into a recycle stream and an exhaust stream. A combining junction is configured to receive the first output stream and the recycle stream, and to combine these streams to output the mixed stream.
H01M 8/249 - Grouping of fuel cells, e.g. stacking of fuel cells comprising two or more groupings of fuel cells, e.g. modular assemblies
C25B 1/04 - Hydrogen or oxygen by electrolysis of water
C25B 9/77 - Assemblies comprising two or more cells of the filter-press type having diaphragms
C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes
H01M 8/04014 - Heat exchange using gaseous fluidsHeat exchange by combustion of reactants
H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
H01M 8/0656 - Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
H01M 8/0662 - Treatment of gaseous reactants or gaseous residues, e.g. cleaning
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
H01M 8/2425 - High-temperature cells with solid electrolytes
A fuel cell system includes a fuel source configured to provide a fuel input stream, a first carbon dioxide removal system configured to receive the fuel input stream and remove carbon dioxide from the fuel input stream, a fuel cell stack including an anode section having an anode inlet configured to receive an anode input stream, and an anode outlet configured to output an anode exhaust stream, and a cathode section having a cathode inlet configured to receive a cathode input stream, and a cathode outlet configured to output a cathode exhaust stream, an anode exhaust gas recycle system including a second carbon dioxide removal system configured to receive and remove carbon dioxide from the anode exhaust stream, and a combining junction configured to receive the fuel input stream, and the anode exhaust stream, and to output a mixed stream to the anode inlet as the anode input stream.
A fuel cell system includes a fuel source configured to provide a fuel input stream, a first carbon dioxide removal system configured to receive the fuel input stream and remove carbon dioxide from the fuel input stream, a fuel cell stack including an anode section having an anode inlet configured to receive an anode input stream, and an anode outlet configured to output an anode exhaust stream, and a cathode section having a cathode inlet configured to receive a cathode input stream, and a cathode outlet configured to output a cathode exhaust stream, an anode exhaust gas recycle system including a second carbon dioxide removal system configured to receive and remove carbon dioxide from the anode exhaust stream, and a combining junction configured to receive the fuel input stream, and the anode exhaust stream, and to output a mixed stream to the anode inlet as the anode input stream.
A method of manufacturing a proton-conducting fuel cell includes assembling a green anode- electrolyte half-cell by forming an anode substrate layer having an upper surface and a lower surface, forming an anode functional layer on the upper surface of the anode substrate layer, forming an electrolyte layer on an upper surface of the anode functional layer, and forming a stress balancing layer on the lower surface of the anode substrate layer. The method further includes positioning the green anode-electrolyte half-cell on kiln furniture inside a sintering kiln and sintering the green anode-electrolyte half-cell using SSRS to an anode-electrolyte half-cell.
H01M 8/1213 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
H01M 8/1226 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material characterised by the supporting layer
H01M 8/124 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
H01M 8/1253 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides the electrolyte containing zirconium oxide
A method of manufacturing a proton-conducting fuel cell includes assembling a green anode-electrolyte half-cell by forming an anode substrate layer having an upper surface and a lower surface, forming an anode functional layer on the upper surface of the anode substrate layer, forming an electrolyte layer on an upper surface of the anode functional layer, and forming a stress balancing layer on the lower surface of the anode substrate layer. The method further includes positioning the green anode-electrolyte half-cell on kiln furniture inside a sintering kiln and sintering the green anode-electrolyte half-cell using SSRS to an anode-electrolyte half-cell.
H01M 8/124 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
9.
Compact high temperature electrochemical cell stack architecture
A base plate assembly for an electrochemical cell stack includes a bottom end plate defining a fuel inlet port, a fuel outlet port, and an oxidant port. The base plate assembly further includes a high strength sealing plate including openings that align with the fuel inlet port, the fuel outlet port, and the oxidant port, and a plurality of tubes located between the bottom end plate and the high strength sealing plate. The tubes are configured to yield to reduce transfer of mechanical stress from the high strength sealing plate to the bottom end plate.
H01M 8/026 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
H01M 8/0271 - Sealing or supporting means around electrodes, matrices or membranes
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
H01M 8/2432 - Grouping of unit cells of planar configuration
H01M 8/2475 - Enclosures, casings or containers of fuel cell stacks
H01M 8/2485 - Arrangements for sealing external manifoldsArrangements for mounting external manifolds around a stack
10.
Compact high temperature electrochemical cell stack architecture
A top compression plate assembly for an electrochemical cell stack includes a top end plate configured to interface with a top end of a stack of electrochemical cells, a top compression plate positioned on the top end plate, and a plurality of springs coupled to a periphery of the top compression plate. The springs are configured to cause the top compression plate to exert a compressive force on the top end plate.
H01M 8/026 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
H01M 8/0271 - Sealing or supporting means around electrodes, matrices or membranes
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
H01M 8/2432 - Grouping of unit cells of planar configuration
H01M 8/2475 - Enclosures, casings or containers of fuel cell stacks
H01M 8/2485 - Arrangements for sealing external manifoldsArrangements for mounting external manifolds around a stack
A fuel cell system including a fuel cell module comprising an anode section configured to output an anode exhaust stream, a first junction configured to split the anode exhaust stream into an anode recycle stream and a system outlet stream, and an ejector. The ejector comprises a low pressure inlet configured to receive a suction stream comprising a first portion of the anode recycle stream, a motive inlet configured to receive a motive stream comprising a second portion of the anode recycle stream, and an outlet configured to output an ejector output stream. The anode section is configured to receive an anode input stream that comprises the ejector output stream.
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
H01M 8/0612 - Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
H01M 8/0668 - Removal of carbon monoxide or carbon dioxide
A fuel cell system including a fuel cell module comprising an anode section configured to output an anode exhaust stream, a first junction configured to split the anode exhaust stream into an anode recycle stream and a system outlet stream, and an ejector. The ejector comprises a low pressure inlet configured to receive a suction stream comprising a first portion of the anode recycle stream, a motive inlet configured to receive a motive stream comprising a second portion of the anode recycle stream, and an outlet configured to output an ejector output stream. The anode section is configured to receive an anode input stream that comprises the ejector output stream.
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
H01M 8/0612 - Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
H01M 8/0668 - Removal of carbon monoxide or carbon dioxide
A fuel cell system including a fuel cell module comprising an anode section configured to output an anode exhaust stream, a first junction configured to split the anode exhaust stream into an anode recycle stream and a system outlet stream, and an ejector. The ejector comprises a low pressure inlet configured to receive a suction stream comprising a first portion of the anode recycle stream, a motive inlet configured to receive a motive stream comprising a second portion of the anode recycle stream, and an outlet configured to output an ejector output stream. The anode section is configured to receive an anode input stream that comprises the ejector output stream.
H01M 8/0668 - Removal of carbon monoxide or carbon dioxide
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
H01M 8/0612 - Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
A method of manufacturing a proton-conducting fuel cell includes assembling a green anode-electrolyte half-cell by forming an anode substrate layer having an upper surface and a lower surface, forming an anode functional layer on the upper surface of the anode substrate layer, forming an electrolyte layer on an upper surface of the anode functional layer, and forming a stress balancing layer on the lower surface of the anode substrate layer. The method further includes positioning the green anode-electrolyte half-cell on kiln furniture inside a sintering kiln and sintering the green anode-electrolyte half-cell using SSRS to an anode-electrolyte half-cell.
A fuel cell system includes a fuel cell module having an inlet and an outlet. The fuel cell module receives a fuel stream including gaseous fuel and expels a depleted fuel stream. The system also includes an exhaust processing module disposed relative to the fuel cell module such that waste heat from the fuel cell module is usable by the exhaust processing module. The system is configured to direct a first portion of the depleted fuel stream to the exhaust processing module, where the depleted fuel stream includes depleted fuel and at least one gaseous byproduct including oxygen and carbon dioxide. The exhaust processing module subjects the first portion of the depleted fuel stream to co-electrolysis using the waste heat from the fuel cell module to produce a fuel-enriched stream. The system is configured to direct the fuel-enriched stream to the inlet of the fuel cell module.
A fuel cell system includes a fuel cell module having an inlet and an outlet. The fuel cell module receives a fuel stream including gaseous fuel and expels a depleted fuel stream. The system also includes an exhaust processing module disposed relative to the fuel cell module such that waste heat from the fuel cell module is usable by the exhaust processing module. The system is configured to direct a first portion of the depleted fuel stream to the exhaust processing module, where the depleted fuel stream includes depleted fuel and at least one gaseous byproduct including oxygen and carbon dioxide. The exhaust processing module subjects the first portion of the depleted fuel stream to co-electrolysis using the waste heat from the fuel cell module to produce a fuel-enriched stream. The system is configured to direct the fuel-enriched stream to the inlet of the fuel cell module.
C25B 13/07 - DiaphragmsSpacing elements characterised by the material based on inorganic materials based on ceramics
H01M 8/0656 - Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
H01M 8/0668 - Removal of carbon monoxide or carbon dioxide
H01M 8/1246 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
17.
SOLID OXIDE FUEL CELL SYSTEM WITH CARBON CAPTURE AND INCREASED EFFICIENCY
A fuel cell system includes a fuel cell module having an inlet and an outlet. The fuel cell module receives a fuel stream including gaseous fuel and expels a depleted fuel stream. The system also includes an exhaust processing module disposed relative to the fuel cell module such that waste heat from the fuel cell module is usable by the exhaust processing module. The system is configured to direct a first portion of the depleted fuel stream to the exhaust processing module, where the depleted fuel stream includes depleted fuel and at least one gaseous byproduct including oxygen and carbon dioxide. The exhaust processing module subjects the first portion of the depleted fuel stream to co-electrolysis using the waste heat from the fuel cell module to produce a fuel-enriched stream. The system is configured to direct the fuel-enriched stream to the inlet of the fuel cell module.
H01M 8/0656 - Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
H01M 8/0668 - Removal of carbon monoxide or carbon dioxide
C25B 1/04 - Hydrogen or oxygen by electrolysis of water
A method of operating a solid oxide electrolysis cell (SOEC) system at partial load, where the SOEC system includes a plurality of branches electrically connected in parallel, and each branch includes at least one SOEC stack. The method includes determining a thermally neutral target voltage below which operation is endothermic and above which operation is exothermic; and executing pulse width modulation current control by cycling an ON phase and an OFF phase for each branch such that the SOEC system operates at an average operating power equal to a chosen percentage of the operating power at the thermally neutral target voltage. In the ON phase, all of the SOEC stacks in a branch operate at the thermally neutral target voltage, and in the OFF phase, all of the SOEC stacks in the branch operate at 0% power. Each branch is configured to be operated independently of the other branches.
A method of operating a solid oxide electrolysis cell (SOEC) system at partial load, where the SOEC system includes a plurality of branches electrically connected in parallel, and each branch includes at least one SOEC stack. The method includes determining a thermally neutral target voltage below which operation is endothermic and above which operation is exothermic; and executing pulse width modulation current control by cycling an ON phase and an OFF phase for each branch such that the SOEC system operates at an average operating power equal to a chosen percentage of the operating power at the thermally neutral target voltage. In the ON phase, all of the SOEC stacks in a branch operate at the thermally neutral target voltage, and in the OFF phase, all of the SOEC stacks in the branch operate at 0% power. Each branch is configured to be operated independently of the other branches.
A method of operating a solid oxide electrolysis cell (SOEC) system at partial load, where the SOEC system includes a plurality of branches electrically connected in parallel, and each branch includes at least one SOEC stack. The method includes determining a thermally neutral target voltage below which operation is endothermic and above which operation is exothermic; and executing pulse width modulation current control by cycling an ON phase and an OFF phase for each branch such that the SOEC system operates at an average operating power equal to a chosen percentage of the operating power at the thermally neutral target voltage. In the ON phase, all of the SOEC stacks in a branch operate at the thermally neutral target voltage, and in the OFF phase, all of the SOEC stacks in the branch operate at 0% power. Each branch is configured to be operated independently of the other branches.
The present technology is directed to a solid oxide cell that may be used as a solid oxide fuel cell or a solid oxide electrolyser cell. The solid oxide cell is configured to avoid deformation caused by differential shrinking via incorporation of an oxygen barrier layer which mitigates the damage caused by the introduction of an oxidizing environment in the anode cavity during the operation of the solid oxide cell as a solid oxide fuel cell.
H01M 8/1213 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
An electrochemical cell stack comprises a plurality of electrochemical cell units, each comprising a cathode, an anode, and an electrolyte, and also comprises a plurality of interconnects. An interconnect is disposed between adjacent electrochemical cell units and defines a longitudinal channel having circumferential corrugations defined therearound. A fuel channel is defined between each anode and a respective adjacent interconnect, the fuel channel having fuel inlet and outlet. An oxidant channel is defined between each cathode and a respective adjacent interconnect, the oxidant channel having an oxidant inlet and outlet. The plurality of electrochemical cell units and interconnects include a first electrochemical cell unit, a first interconnect adjacent the first electrochemical cell unit, a second electrochemical cell unit adjacent the first interconnect, and a second interconnect adjacent the second electrochemical cell unit. The second interconnect is rotationally offset from the first interconnect about a longitudinal axis of the fuel cell stack.
H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
H01M 8/04007 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
H01M 8/2425 - High-temperature cells with solid electrolytes
H01M 8/2485 - Arrangements for sealing external manifoldsArrangements for mounting external manifolds around a stack
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
An electrochemical cell unit comprises a first electrochemical cell comprising a first oxidant electrode and a first fuel electrode, and a second electrochemical cell comprising a second oxidant electrode and a second fuel electrode. An interconnect interposed between the first electrochemical cell and the second electrochemical cell. The interconnect comprises an interconnect main body defining a longitudinal channel along a longitudinal axis thereof. The interconnect main body includes a plurality of corrugations defining a plurality of fuel channels on a first surface of the interconnect main body facing the first electrochemical cell, and a plurality of oxidant channels on a second surface of the interconnect main body facing the second electrochemical cell. Each of the plurality of fuel channels and the plurality of oxidant channel positioned around the longitudinal channel.
H01M 8/026 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
H01M 8/0271 - Sealing or supporting means around electrodes, matrices or membranes
H01M 8/2432 - Grouping of unit cells of planar configuration
H01M 8/2475 - Enclosures, casings or containers of fuel cell stacks
H01M 8/2485 - Arrangements for sealing external manifoldsArrangements for mounting external manifolds around a stack
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
The present technology is directed to a solid oxide cell that may be used as a solid oxide fuel cell or a solid oxide electrolyser cell. The solid oxide cell is configured to avoid deformation caused by differential shrinking via incorporation of an oxygen barrier layer which mitigates the damage caused by the introduction of an oxidizing environment in the anode cavity during the operation of the solid oxide cell as a solid oxide fuel cell.
B05D 5/12 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
An electrochemical cell stack comprises a plurality of electrochemical cell units, each comprising a cathode, an anode, and an electrolyte, and also comprises a plurality of interconnects. An interconnect is disposed between adjacent electrochemical cell units. A fuel channel is defined between each anode and a respective adjacent interconnect, the fuel channel having fuel inlet and outlet. An oxidant channel is defined between each cathode and a respective adjacent interconnect, the oxidant channel having an oxidant inlet and outlet. The plurality of electrochemical cell units and interconnects include a first electrochemical cell unit, a first interconnect adjacent the first electrochemical cell unit, a second electrochemical cell unit adjacent the first interconnect, and a second interconnect adjacent the second electrochemical cell unit. The second interconnect is rotationally offset from the first interconnect about a longitudinal axis of the fuel cell stack.
H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/2425 - High-temperature cells with solid electrolytes
H01M 8/2485 - Arrangements for sealing external manifoldsArrangements for mounting external manifolds around a stack
26.
SELECTIVELY ROTATED FLOW FIELD FOR THERMAL MANAGEMENT IN A FUEL CELL STACK
An electrochemical cell stack comprises a plurality of electrochemical cell units, each comprising a cathode, an anode, and an electrolyte, and also comprises a plurality of interconnects. An interconnect is disposed between adjacent electrochemical cell units. A fuel channel is defined between each anode and a respective adjacent interconnect, the fuel channel having fuel inlet and outlet. An oxidant channel is defined between each cathode and a respective adjacent interconnect, the oxidant channel having an oxidant inlet and outlet. The plurality of electrochemical cell units and interconnects include a first electrochemical cell unit, a first interconnect adjacent the first electrochemical cell unit, a second electrochemical cell unit adjacent the first interconnect, and a second interconnect adjacent the second electrochemical cell unit. The second interconnect is rotationally offset from the first interconnect about a longitudinal axis of the fuel cell stack.
H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
27.
COMPACT HIGH TEMPERATURE ELECTROCHEMICAL CELL STACK ARCHITECTURE
A electrochemical cell unit comprises a first electrochemical cell comprising a first oxidant electrode and a first fuel electrode, and a second electrochemical cell comprising a second oxidant electrode and a second fuel electrode. An interconnect interposed between the first electrochemical cell and the second electrochemical cell. The interconnect comprises an interconnect main body defining a longitudinal channel along a longitudinal axis thereof. The interconnect main body includes a plurality of corrugations defining a plurality of fuel channels on a first surface of the interconnect main body facing the first electrochemical cell, and a plurality of oxidant channels on a second surface of the interconnect main body facing the second electrochemical cell. Each of the plurality of fuel channels and the plurality of oxidant channel positioned around the longitudinal channel.
C25B 9/65 - Means for supplying currentElectrode connectionsElectric inter-cell connections
C25B 9/73 - Assemblies comprising two or more cells of the filter-press type
C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes
H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
H01M 8/0273 - Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
H01M 8/248 - Means for compression of the fuel cell stacks
H01M 8/2485 - Arrangements for sealing external manifoldsArrangements for mounting external manifolds around a stack
28.
COMPACT HIGH TEMPERATURE ELECTROCHEMICAL CELL STACK ARCHITECTURE
A electrochemical cell unit comprises a first electrochemical cell comprising a first oxidant electrode and a first fuel electrode, and a second electrochemical cell comprising a second oxidant electrode and a second fuel electrode. An interconnect interposed between the first electrochemical cell and the second electrochemical cell. The interconnect comprises an interconnect main body defining a longitudinal channel along a longitudinal axis thereof. The interconnect main body includes a plurality of corrugations defining a plurality of fuel channels on a first surface of the interconnect main body facing the first electrochemical cell, and a plurality of oxidant channels on a second surface of the interconnect main body facing the second electrochemical cell. Each of the plurality of fuel channels and the plurality of oxidant channel positioned around the longitudinal channel.
H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
H01M 8/0273 - Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
H01M 8/2425 - High-temperature cells with solid electrolytes
H01M 8/248 - Means for compression of the fuel cell stacks
H01M 8/2475 - Enclosures, casings or containers of fuel cell stacks
H01M 8/2483 - Details of groupings of fuel cells characterised by internal manifolds
H01M 8/2485 - Arrangements for sealing external manifoldsArrangements for mounting external manifolds around a stack
H01M 8/04007 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/124 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
29.
COMPACT HIGH TEMPERATURE ELECTROCHEMICAL CELL STACK ARCHITECTURE
A electrochemical cell unit comprises a first electrochemical cell comprising a first oxidant electrode and a first fuel electrode, and a second electrochemical cell comprising a second oxidant electrode and a second fuel electrode. An interconnect interposed between the first electrochemical cell and the second electrochemical cell. The interconnect comprises an interconnect main body defining a longitudinal channel along a longitudinal axis thereof The interconnect main body includes a plurality of corrugations defining a plurality of fuel channels on a first surface of the interconnect main body facing the first electrochemical cell, and a plurality of oxidant channels on a second surface of the interconnect main body facing the second electrochemical cell. Each of the plurality of fuel channels and the plurality of oxidant channel positioned around the longitudinal channel.
H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
H01M 8/0273 - Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
H01M 8/04007 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/124 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
H01M 8/2425 - High-temperature cells with solid electrolytes
H01M 8/2475 - Enclosures, casings or containers of fuel cell stacks
H01M 8/248 - Means for compression of the fuel cell stacks
H01M 8/2483 - Details of groupings of fuel cells characterised by internal manifolds
H01M 8/2485 - Arrangements for sealing external manifoldsArrangements for mounting external manifolds around a stack
30.
COMPACT HIGH TEMPERATURE ELECTROCHEMICAL CELL STACK ARCHITECTURE
A electrochemical cell unit comprises a first electrochemical cell comprising a first oxidant electrode and a first fuel electrode, and a second electrochemical cell comprising a second oxidant electrode and a second fuel electrode. An interconnect interposed between the first electrochemical cell and the second electrochemical cell. The interconnect comprises an interconnect main body defining a longitudinal channel along a longitudinal axis thereof. The interconnect main body includes a plurality of corrugations defining a plurality of fuel channels on a first surface of the interconnect main body facing the first electrochemical cell, and a plurality of oxidant channels on a second surface of the interconnect main body facing the second electrochemical cell. Each of the plurality of fuel channels and the plurality of oxidant channel positioned around the longitudinal channel.
C25B 9/65 - Means for supplying currentElectrode connectionsElectric inter-cell connections
C25B 9/73 - Assemblies comprising two or more cells of the filter-press type
C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes
H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
H01M 8/0273 - Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
H01M 8/248 - Means for compression of the fuel cell stacks
H01M 8/2485 - Arrangements for sealing external manifoldsArrangements for mounting external manifolds around a stack
31.
CATHODE CONTACT LAYER DESIGN FOR PREVENTING CHROMIUM CONTAMINATION OF SOLID OXIDE FUEL CELLS
In embodiments, a fuel cell stack is provided that includes an interconnect between a first fuel cell and a second fuel cell, and a contact layer in contact with, and disposed between, an electrode of the first fuel cell and the interconnect. The contact layer may include a chromium-getter material. This chromium-getter material may consist of lanthanum oxide, lanthanum carbonate, and/or calcium carbonate.
H01M 8/0202 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors
H01M 8/0662 - Treatment of gaseous reactants or gaseous residues, e.g. cleaning
H01M 8/1246 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
H01M 8/2425 - High-temperature cells with solid electrolytes
32.
SYSTEMS AND METHODS FOR PREVENTING CHROMIUM CONTAMINATION OF SOLID OXIDE FUEL CELLS
In some embodiments, a solid oxide fuel system is provided. The solid oxide fuel cell system may include a chromium-getter material. The chromium-getter material may react with chromium to remove chromium species from chromium vapor. The solid oxide fuel cell system may also include an inert substrate. The chromium-getter material may be coated onto the inert substrate. The coated substrate may remove chromium species from chromium vapor before the chromium species can react with a cathode in the solid oxide fuel cell system.
H01M 8/0662 - Treatment of gaseous reactants or gaseous residues, e.g. cleaning
H01M 8/1246 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
33.
Cathode contact layer design for preventing chromium contamination of solid oxide fuel cells
In embodiments, a fuel cell stack is provided that includes an interconnect between a first fuel cell and a second fuel cell, and a contact layer in contact with, and disposed between, an electrode of the first fuel cell and the interconnect. The contact layer may include a chromium-getter material. This chromium-getter material may consist of lanthanum oxide, lanthanum carbonate, and/or calcium carbonate.
H01M 8/0247 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the form
H01M 8/0217 - Complex oxides, optionally doped, of the type AMO3, A being an alkaline earth metal or rare earth metal and M being a metal, e.g. perovskites
H01M 8/0228 - Composites in the form of layered or coated products
H01M 8/0245 - Composites in the form of layered or coated products
H01M 8/124 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
34.
SYSTEMS AND METHODS FOR PREVENTING CHROMIUM CONTAMINATION OF SOLID OXIDE FUEL CELLS
In some embodiments, a solid oxide fuel system is provided. The solid oxide fuel cell system may include a chromium-getter material. The chromium-getter material may react with chromium to remove chromium species from chromium vapor. The solid oxide fuel cell system may also include an inert substrate. The chromium-getter material may be coated onto the inert substrate. The coated substrate may remove chromium species from chromium vapor before the chromium species can react with a cathode in the solid oxide fuel cell system.
H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
B01D 53/00 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
In embodiments, a fuel cell stack is provided that includes an interconnect between a first fuel cell and a second fuel cell, and a contact layer in contact with, and disposed between, an electrode of the first fuel cell and the interconnect. The contact layer may include a chromium-getter material. This chromium-getter material may consist of lanthanum oxide, lanthanum carbonate, and/or calcium carbonate.
patents
