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Fuel Cell Stack patents



      
           
This page is updated frequently with new Fuel Cell Stack-related patent applications. Subscribe to the Fuel Cell Stack RSS feed to automatically get the update: related Fuel RSS feeds. RSS updates for this page: Fuel Cell Stack RSS RSS


Heater and method of operating

Delphi Technologies

Heater and method of operating

Fuel cell system and its operating method

Toyota Jidosha

Fuel cell system and its operating method


Date/App# patent app List of recent Fuel Cell Stack-related patents
07/23/15
20150207166 
 Fuel cell for improving flow field uniformity and reducing gas pressure loss patent thumbnailnew patent Fuel cell for improving flow field uniformity and reducing gas pressure loss
A fuel cell for improving flow field uniformity and reducing gas pressure loss includes a fuel cell stack and a gas input unit. The gas input unit has a gas input passage, an input port, an input baffle plate and at least one perforated plate.
National Tsing Hua University


07/23/15
20150207158 
 Fuel cell system and its operating method patent thumbnailnew patent Fuel cell system and its operating method
An object is to suppress the dryness at an anode inlet of a fuel cell stack in a case of power generation at a current density of not lower than 1.4 a/cm2 in the fuel cell stack in which a mass of a platinum catalyst per 1 cm2 included in a cathode electrode is not higher than 0.2 mg. This object is achievable by performing at least one of controls of controlling temperature of the fuel cell stack to be not lower than 30° c.
Toyota Jidosha Kabushiki Kaisha


07/23/15
20150204172 
 Heater and  operating patent thumbnailnew patent Heater and operating
A plurality of heaters is provided to be disposed end to end within a bore hole of a formation where the bore hole extends from an upper end to a lower end such that a lower heater of the plurality of heaters is proximal to the lower end of the bore hole while every other of the plurality of heaters is distal from the lower end of the bore hole. Each of the plurality of heaters includes a fuel cell stack assembly having a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent.
Delphi Technologies, Inc.


07/16/15
20150200414 
 Fuel cell stack patent thumbnailFuel cell stack
A fuel cell stack includes fuel cells, a reactant gas channel, a reactant gas inlet manifold, a reactant gas outlet manifold, an inlet buffer portion, and an outlet buffer portion. A reactant gas flows through the reactant gas channel along a surface of a separator.
Honda Motor Co., Ltd.


07/16/15
20150200408 
 Method of forming a fuel cell stack patent thumbnailMethod of forming a fuel cell stack
A method of forming a fuel cell stack, wherein the stack includes an anode electrode layer, an adhesive and anode gas diffusion layer coupled to the anode electrode layer, an ion exchange membrane coupled on a first side to the gas diffusion layer opposite the anode electrode layer, an adhesive and cathode gas diffusion layer coupled to a second side of the ion exchange membrane, and a cathode electrode layer coupled to the adhesive and cathode gas diffusion layer opposite the ion exchange membrane. The fuel cell stack may be flexible..
Honeywell International Inc.


07/16/15
20150200404 
 Fuel cell, and fuel cell stack patent thumbnailFuel cell, and fuel cell stack
A fuel cell (3) includes interconnectors (hereinafter, ic) (12, 13), a cell body (20) disposed between the ics and including an air electrode (14) and a fuel electrode (15) on both surfaces of an electrolyte (2), and current collecting members (18, 19) disposed between at least one of the electrodes (14, 15) and the ics. The current collecting members (19) include connector contact portions (19a) in contact with the ic (13), cell body contact portions (19b) in contact with the cell body, and connecting portions (19c) that are bent approximately 180 degrees and connect both the contact portions, the connector contact portions, the cell body contact portions, and the connecting portions being formed in line.
Ngk Spark Plug Co., Ltd.


07/16/15
20150198147 
 Fuel cell incorporating wind power generating device patent thumbnailFuel cell incorporating wind power generating device
A fuel cell incorporating a wind power generating device includes a fuel cell stack, a gas input unit and a wind power generating device. The gas input unit, configured to provide an input gas, includes a gas diffusion path and an inlet.
National Tsing Hua University


07/09/15
20150194696 
 Fuel cell stack enclosure patent thumbnailFuel cell stack enclosure
A fuel cell stack enclosure is provided that includes side covers configured to be joined with each of end of a stack module respectively. A lower cover is also configured to be provided under the stack module and formed to partially cover a lower portion and a first side portion of an outer surface of the side cove.
Kia Motors Corporation


07/09/15
20150194695 
 Voltage lead jumper connected fuel cell columns patent thumbnailVoltage lead jumper connected fuel cell columns
A fuel cell system includes a plurality of fuel cell stacks, and one or more devices which in operation of the system provide an azimuthal direction to one or more anode or cathode feed or exhaust fluid flows in the system.. .
Bloom Energy Corporation


07/09/15
20150194684 
 Cooling system for fuel cells patent thumbnailCooling system for fuel cells
A fuel cell stack assembly comprises a stack of fuel cells, each fuel cell having a cooling air conduit with an input/output ventilation aperture disposed on a ventilation face of the stack. The ventilation apertures form an array over said ventilation face of the stack.
Intelligent Energy Limited


07/02/15
20150188180 

Fuel cell stack


A fuel cell stack is provided that includes a fuel cell stack module and an enclosure. The fuel cell stack module includes end plates and coupling bars coupled to the end plates.
Hyundai Motor Company


07/02/15
20150188179 

Method for manufacturing end plate for fuel cell stack


A method of manufacturing an end plated for a fuel cell stack, using overmolding injection molding is provided. The method prevents damage to tapped portions in injection molding and re-tapping after the injection molding, by implementing a method of injection molding for an end plate that prevents an injection-molded part from flowing into taps by forming a male thread on a first side of each of fixing pins fitted in a metal insert in injection molding of an end plate and by fastening the fixing pins in advance in the taps of the metal insert.
Daewon Kang Up Co., Ltd.


07/02/15
20150188174 

Solid oxide fuel cell controlling same


A solid oxide fuel cell system includes: a fuel cell stack having a fuel electrode and an oxidant electrode; and a combustion unit provided to start the system; a control unit configured to perform control in such a way as to fill a combustion gas discharged from the combustion unit into the fuel electrode of the fuel cell stack at a time of stopping the system, the combustion gas containing an inert gas as a component.. .
Nissan Motor Co., Ltd.


07/02/15
20150188168 

Voltage synchronization method and system


A voltage synchronization method and system are provided. The system includes a main controller that is configured to determine whether voltage synchronization is possible.
Kia Motors Corporation


07/02/15
20150188167 

Apparatus for controlling fuel cell heating value


Disclosed herein is an apparatus for controlling a fuel cell heating value. The apparatus includes stack condition sensors which senses conditions of respective fuel cell stacks, and a control unit.
Sk Innovation Co., Ltd.


07/02/15
20150188164 

Hydrogen supply apparatus of fuel cell stack


A hydrogen supply apparatus of fuel cell stack is provided. In particular, a plurality of unit cells includes a membrane electrode assembly, a separating plate disposed on two sides of the membrane electrode assembly, a coolant path, an air path, a fuel path, and an air inlet manifold communicated with the air path.
Hyundai Motor Company


07/02/15
20150188160 

Device and controlling fuel cell stack connection


Device and method for controlling fuel cell stack connection. The device includes fuel cell stacks and a power conditioning unit connected to the stacks, and further includes: a memory storing a first critical value by which the connection control device starts an operation, second critical values ranging from zero to the first critical value, and a boundary value for placing the second critical values in at least two subsidiary ranges; stack voltage sensing units for sensing voltages of the stacks; and a control unit for determining whether sensed voltages have been reduced to the first critical value or greater, and starting to control the operation of a switching unit when any one of the sensed voltages has been reduced to the first critical value or greater, thereby placing one or more stacks having voltages associated with each one of the at least two subsidiary ranges in one of individual groups..
Sk Innovation Co., Ltd.


07/02/15
20150188159 

Fuel cell stack


A fuel cell stack includes a membrane electrode assembly including an polymer electrolyte membrane, an anode, and a cathode. A separating plate is disposed at two sides of the membrane electrode assembly and includes a coolant path, an air path, and a fuel path.
Hyundai Motor Company


07/02/15
20150188158 

Fuel cell system


A method of starting operation of a fuel cell system which includes at least a fuel cell stack the method includes opening an anode inlet valve to allow fuel to enter an anode volume of the fuel cell stack; then operating an air compressor in fluid communication with a cathode air inlet of the fuel cell stack to allow air to enter a cathode volume of the fuel cell stack monitoring the temperature of the cathode inlet and/or outlet operating a water injection system to inject water into the cathode volume once the temperature of fluid passing through the cathode inlet and/or outlet exceeds a preset level, wherein a current drawn from the fuel cell stack is limited to prevent a voltage measured across one or more cells in the fuel cell stack from falling below a first voltage threshold.. .
Intelligent Energy Limited


07/02/15
20150188149 

Metal separator for fuel cell stack


A metal separator for a fuel cell stack includes an anode separator, a cathode separator, and a gasket for maintaining airtightness for a reactive gas. The anode separator and the cathode separator are integrated in one set by a bonding portion formed at a contact portion between the anode separator and the cathode separator.
Kia Motors Corporation


07/02/15
20150184759 

Valve for controlling coolant fuel cell stack coolant of fuel cell vehicle


A valve for controlling the temperature of a coolant to flow into a fuel cell stack to provide the optimum level of coolant at the appropriate temperature in order to keep the operation of the fuel cell stack stable is provided. In particular, new type of seal that can achieve maximum sealability with minimized friction force on a plunger shaft by changing the shape and structure of a seal for sealing the plunger shaft.
Kia Motors Corporation


07/02/15
20150183337 

Temperature management system of fuel cell vehicle and method thereof


A temperature management system of a fuel cell vehicle includes a radiator, a water pump, an ion filter, a flow control valve, a state detector and a controller. The radiator is configured to emit heat generated from a fuel cell stack via cooling water, and the water pump is configured to circulate the cooling water through the system.
Kia Motors Corporation


06/25/15
20150180365 

Method for generating injection current for fuel cell stack and performing the same


An apparatus for generating injection current for a fuel cell stack includes a first converter configured to convert direct current of a voltage corresponding to a high voltage battery, into direct current of a predetermined voltage; a second converter configured to convert the converted direct current into alternating current; a filter configured to filter a signal of a predetermined frequency band from the converted alternating current; and a control unit configured to perform a feedback control to allow the filtered alternating current to be injected without being distorted when injecting the filtered alternating current into the fuel cell stack.. .
Hyundai Autron Co., Ltd.


06/25/15
20150180348 

Method for generating injection current for fuel cell stack and performing the same


An apparatus for generating injection current for a fuel cell stack includes a switch configured to retain any one state of an on state and an off state; an inductor configured to output accumulated energy according to a state of the switch; and a converter configured to provide an output of the inductor to a load or convert the output into a predetermined voltage and provide the predetermined voltage to a load.. .
Hyundai Autron Co., Ltd.


06/25/15
20150180079 

Fuel cell components, stacks and modular fuel cell systems


A fuel cell power module includes a cylindrical housing encasing a fuel cell stack and an air supply. The housing has a major interior surface.
Powerdisc Development Corporation Ltd.


06/25/15
20150180069 

Apparatus and controlling hydrogen purging


An apparatus and method for controlling hydrogen purging are provided. The apparatus includes a purging valve that is provided for an outlet disposed adjacent to an anode of a fuel cell stack and is configured to adjust an outflow of water from the fuel cell stack.
Kia Motors Corporation


06/25/15
20150180067 

Method for controlling startup of fuel cell system


A method for controlling a startup of a fuel cell system is provided. The method includes comparing a voltage generated in a fuel cell stack when hydrogen is supplied to a fuel electrode of the fuel cell stack for a set period of time with a first reference voltage.
Kia Motors Corporation


06/25/15
20150180065 

Hydrogen purge unit for fuel cell system


A fuel cell system having a hydrogen purge unit may include a purge pipe that connects an air discharge pipe connecting a fuel cell stack and a humidifying device and a hydrogen discharge pipe that discharges hydrogen from the fuel cell stack, and a purge valve provided at the purge pipe. In particular, a plurality of purge branch apertures are structured to discharge a purge gas from the fuel cell stack into the air discharge pipe by providing the purge branch apertures at intervals along the bottom surface of the purge pipe in a downstream section of the purge pipe that extends from the purge valve in a downstream direction..
Hyundai Motor Company


06/25/15
20150180064 

Fuel cell management method


A fuel cell management method includes removing droplets remaining in a fuel cell stack using air supplied to a cathode and hydrogen supplied to an anode. Hydrogen and oxygen remaining are removed in the fuel cell stack by stopping the supply of the hydrogen and the air, and the hydrogen and the oxygen in the fuel cell stack are chemically reacted to remove residual hydrogen and oxygen.
Hyundai Motor Company


06/25/15
20150180058 

Fuel cell system


A fuel cell system capable of adjusting the amount of humidification of reaction gas includes a fuel cell stack in which fuel cells are stacked, an air supplier supplying air to the fuel cell stack, a humidifier humidifying air supplied through the air supplier with air discharged from the fuel cell stack, and a hydrogen supplier supplying hydrogen to the fuel cell stack. A condensate water processor is configured to store and discharge condensate water discharged from the fuel cell stack through a hydrogen exhaust line.
Hyundai Motor Company


06/25/15
20150180057 

Method for generating injection current for fuel cell stack and performing the same


An apparatus for generating injection current for a fuel cell stack includes a first converter configured to convert direct current of a voltage corresponding to a battery for a vehicle, into direct current of predetermined voltage; a second converter configured to convert the converted direct current into alternating current; a filter configured to filter a signal of a predetermined frequency band from the converted alternating current; and a control unit configured to perform a feedback control to allow the filtered alternating current to be injected without being distorted when injecting the filtered alternating current into the fuel cell stack.. .
Hyundai Autron Co., Ltd.


06/25/15
20150180052 

Fuel cell flow channels and flow fields


A fuel cell anode flow field includes at least one flow channel with a cross-sectional area that varies along at least a portion of its length. In some embodiments, the channel width decreases along at least a portion of the channel length according to a natural exponential function.
Powerdisc Development Corporation Ltd.


06/25/15
20150180051 

Fuel cell module for a vehicle


A fuel cell module includes at least one fuel cell stack with a housing. The at least one fuel cell stack is arranged, with a plurality of system components for conducting and/or conditioning the fluids for the supply of the at least one fuel cell stack, with a mechanical interface for fastening the fuel cell module to the vehicle.
Daimler Ag


06/18/15
20150171459 

Fuel cell stack with enhanced seal


A fuel cell stack assembly is disclosed. The fuel stack assembly includes first and second fuel cell cassettes joined together by an electrically insulating seal material, with the seal material disposed in a first seal retaining area between a recessed portion of the first cassette and a protruding portion of the second cassette..
Delphi Technologies, Inc.


06/18/15
20150171456 

Fuel cell stack


A fuel cell stack is provided in which a plurality of single cells each including a membrane electrode assembly are stacked in a stacking direction. The fuel cell stack includes a plurality of electrical insulation members each connected to an outer peripheral portion of a corresponding one of the membrane electrode assemblies.
Nissan Motor Co., Ltd.


06/18/15
20150171446 

Fuel cell system and driving control method thereof


A method of controlling a fuel cell system includes decelerating the air blower that stops power generation of a fuel cell stack or supplies air to the fuel cell stack. A connection state of pipes connected to a valve is controlled by adjusting the valve disposed between an exit side of the air blower and an entrance side of a cathode of the fuel cell stack.
Hyundai Motor Company


06/18/15
20150171444 

Fuel cell system


A fuel cell system of the present invention can suppress an excessively wet or dry state of a fuel cell stack so as to thereby ensure the durability of the fuel cell stack. The fuel cell system supplies an oxidant gas with a reduced flow rate per unit time and for a long time period if the rate of voltage decrease of the stack becomes faster than a threshold rate, and supplies the oxidant gas with an increased flow rate per unit time and for a short time period if the rate of voltage decrease becomes slower than a threshold rate..
Toyota Jidosha Kabushiki Kaisha


06/18/15
20150171436 

Fuel cell separator and fuel cell stack including the same


A fuel cell is provided that includes a plurality of membrane-electrode assemblies (meas) and a first flow channel that supplies fuel to one of the membrane-electrode assemblies in which the first flow channel is formed by a plurality of channel plates between the membrane-electrode assemblies. Additionally, a second flow channel supplies air to another one of the membrane-electrode assemblies, and a cooling channel circulates a cooling medium for cooling the first flow channel and the second flow channel.
Hyundai Motor Company


06/18/15
20150171435 

Interconnect for fuel cell stack


A metal interconnect for a fuel cell stack is formed from an electrically conductive metal sheet having at least four stamped slots through the metal sheet, and often many more than four slots. The stamped slots individually extend lengthwise parallel to the direction of fluid flow during operation of the fuel cell stack assembly and are disposed on the metal sheet in a pattern extending parallel and perpendicular to the direction of fluid flow, so as to define at least one metal strip portion between adjacent slots extending parallel to the direction of fluid flow and at least one metal strip portion between adjacent slots extending perpendicular to the direction of fluid flow.
Delphi Technologies, Inc.


06/18/15
20150165928 

Technique of diagnosing fuel cell stack


A technique of diagnosing a fuel cell stack is provided. In particular, current and voltage of a fuel cell stack are measured during driving of a fuel cell vehicle and the current and voltage are sequentially stored.
Kia Motors Corporation


06/11/15
20150162637 

Heater and operating


A heater includes a heater housing extending along a heater axis; a fuel cell stack assembly disposed within the heater housing and having a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent; an electric resistive heating element disposed within the heater housing and electrically connected to the fuel cell stack assembly; and a first thermal switch located between the fuel cell stack assembly and the electric resistive heating element. The first thermal switch is closed to place the fuel cell stack assembly in electrical communication with the electric resistive heating element when the fuel cell stack assembly is electrochemically active and is open to prevent electrical communication between the fuel cell stack assembly and the electric resistive heating element when the fuel cell stack assembly is not electrochemically active..
Delphi Technologies, Inc.


06/11/15
20150162631 

Measurement device for measuring voltages along a linear array of voltage sources


A measurement device for measuring voltages along a linear array of voltage sources, such as a fuel cell stack, includes at least one movable contact or non-contact voltage probe that measures a voltage of an array element.. .
Bloom Energy Corporation


06/11/15
20150162630 

Multi-point fuel cell voltage monitor


A fuel cell voltage monitor (12a, 12b, 40, 140, 440) detects and may respond to, a problematic operating condition at or near a fuel cell (10) or within a subset (n) of fuel cells, as in a fuel cell stack assembly (110). Two or more co-planar, spaced voltage leads or contacts in a fuel cell plane, as at a separator plate, detect the presence of a voltage difference within the plate/plane as an indication of an operating problem at or near the fuel cell.
Ballard Power Systems Inc.


06/11/15
20150162629 

Fuel cell system


A fuel cell system calculates a target value of a flow rate of cathode gas to be supplied to a fuel cell stack according to a request of the fuel cell stack, controls a flow rate of the cathode gas to be supplied by the compressor according to an operating state of the fuel cell system, controls a bypass valve based on a target fuel cell supply flow rate so that the flow rate of the cathode gas to be supplied from the compressor to the fuel cell stack reaches the target fuel cell supply flow rate, and limits the flow rate of the cathode gas to be supplied by the compressor when the bypass valve has a predetermined opening and the flow rate of the cathode gas to be supplied to the fuel cell stack is not smaller than the target fuel cell supply flow rate.. .
Nissan Motor Co., Ltd.


06/11/15
20150162626 

System and controlling dehydration of fuel cell stack


A system and method for controlling dehydration of a fuel cell stack include a fuel cell stack including an anode which receives hydrogen from a hydrogen supplier and a cathode which receives air from an air supplier. A reactor collects hydrogen and oxygen discharged from the fuel cell stack so that the collected hydrogen and oxygen are reacted, thereby increasing relative humidity of hydrogen supplied to the anode, and thus raising water content of the catalytic layer of the anode..
Inha Industry Partnership Institute


06/11/15
20150158179 

Robotic fuel cell assembly system


A robotic fuel cell assembly system includes an end-effector, robotic workcell, and fuel cell components that have integrated design features that allow accurate component alignment during the assembly process of a fuel cell stack within a desired tolerance, while avoiding component overlap, which is a major cause of overboard gas leaks during the fuel cell operation. Accurate component alignment is achieved by electrically non-conductive alignment pins that are mounted on a fuel cell base plate, which are configured to be received by guide holes formed on the fuel cell components, and alignment holes provided by an alignment arm attached to the end-effector.
Kent State University


06/04/15
20150155587 

Method for operating a fuel system


The present invention relates to a method for operating a fuel cell system having a fuel cell stack to which a fuel is supplied on the anode side and an oxidizing agent is supplied on the cathode side, wherein at least during one phase of the operation of the fuel cell system, urea is supplied to the fuel cell stack as a fuel.. .
Elringklinger Ag


06/04/15
20150155577 

Fuel cell stack and control method thereof


A fuel cell system includes a fuel cell stack configured to include a cathode and an anode, an air supplier configured to supply air to the cathode, and an air intake pipe configured to connect an outlet of the air supplier and an inlet of the cathode to each other and having an opening adjustable valve provided thereto. A controller is configured to adjust an opening of the valve according to a supplied amount of air to control a flow rate of air supplied to the cathode.
Hyundai Motor Company


06/04/15
20150155576 

Cell voltage monitoring (cvm) pick-up assembly for a fuel cell stack


Disclosed herein is a cell voltage monitoring (cvm) pick-up assembly for a fuel cell stack. The assembly includes a tab and a contact wire having two ends.
Energyor Technologies Inc.


06/04/15
20150155574 

Driving control method and system of fuel cell system


A driving control method and system of a fuel cell system are provided. The method includes determining, by a controller, a dry state of a fuel cell stack and stopping an air blower, which supplies air to the fuel cell stack, using different processes based on whether the fuel cell stack is in the dry state.
Kia Motors Corporation


06/04/15
20150153418 

Method for determining critical operating states in a fuel cell stack


The invention relates to a method for determining critical operating states in a fuel cell stack, consisting of single cells connected in series, wherein a low-frequency current or voltage signal is applied to the fuel cell stack, the resulting voltage or current signal is measured and the distortion factor thd is determined. According to the invention, the weighted sum of a term dependent on the membrane resistance rm and a term dependent on the distortion factor thd is used to determine an indicator thdadryout correlating with the drying out of the fuel cell membranes of the fuel cell stack, the membrane resistance rm being detected by impedance measurement..
Avl List Gmbh


05/28/15
20150147679 

Fuel cell interconnect with reduced voltage degradation over time


A method of making an interconnect for a solid oxide fuel cell stack includes providing a chromium alloy interconnect and providing a nickel mesh in contact with a fuel side of the interconnect. Formation of a chromium oxide layer is reduced or avoided in locations between the nickel mesh and the fuel side of the interconnect.
Bloom Energy Corporation


05/28/15
20150147671 

Fuel cell vehicles


A vehicle fuel cell apparatus includes a fuel cell stack configured to take in air as a reaction gas and a coolant through an air intake aperture area, and discharge temperature-raised air through air discharging aperture areas. An air suction duct, air discharge ducts, and air discharge fans take in air to the air suction duct.
Suzuki Motor Corporation


05/21/15
20150140468 

Fuel cell system components


A fuel cell stack module includes a plurality of fuel cell stacks, a base supporting the plurality of fuel cell stacks, and a metal shell located over the base and the fuel cell stacks. The metal shell contains an integrated heat exchanger..
Bloom Energy Corporation


05/21/15
20150140466 

Fuel cell stack


A fuel cell stack includes bonding members for joining projecting sections of adjacent frames in cell modules, an inter-cell module seal member forming a seal between the cell modules, and supporting members disposed between adjacent frames in the cell modules. As viewed from above in the direction in which the cell modules are layered, the supporting members overlap at least a part of a section of the inter-cell module seal member that contacts the cell modules..
Nissan Motor Co., Ltd.


05/21/15
20150140463 

Heater with a fuel cell stack assembly and a combustor and operating


A heater includes a heater housing extending along a heater axis. A fuel cell stack assembly is disposed within the heater housing and includes a plurality of fuel cells which convert chemical energy from a fuel cell fuel into heat and electricity through a chemical reaction with a fuel cell oxidizing agent.
Delphi Technologies, Inc.


05/21/15
20150140461 

Method of operating a heater


A method is provided for operating a heater including a heater housing extending along a heater axis; a plurality of fuel cell stack assemblies disposed within the heater housing along the heater axis and having a plurality of fuel cells which convert chemical energy from a fuel cell fuel into heat and electricity through a chemical reaction with a fuel cell oxidizing agent; and a plurality of combustors disposed within the heater housing along the heater axis. The method includes supplying a combustor fuel to the plurality of combustors, combusting the combustor fuel to produce a heated combustor exhaust when the fuel cell stack assemblies are substantially electrochemically inactive, and using the heated combustor exhaust to elevate the temperature of the fuel cell stack assemblies to be electrochemically active..
Delphi Technologies, Inc.


05/14/15
20150132680 

Fuel cell


A power generation unit of a fuel cell stack includes a first metal separator, a first membrane electrode assembly, a second metal separator, a second membrane electrode assembly, and a third metal separator. A first oxygen-containing gas flow field includes a plurality of wavy flow grooves.

05/14/15
20150132672 

Fuel cell system operated on liquid fuels


A fuel cell system includes a fuel cell stack, a heavy hydrocarbon fuel source, and a fractionator configured to separate light ends from heavy ends of a heavy hydrocarbon fuel provided from the heavy hydrocarbon fuel source.. .

05/07/15
20150125777 

Separator for fuel cells, fuel cell, fuel cell stack, and manufacturing separator for fuel cells


A separator for fuel cells is provided. The separator includes: a base material; an underlying alloy layer formed on the base material; and a gold plate layer formed on the underlying alloy layer.
Toyo Kohan Co., Ltd.


05/07/15
20150125776 

Fuel cell stack and a assembling a fuel cell stack


A fuel cell stack (100) comprising a plurality of fuel cell assemblies (102) adjacent to one another. The fuel cell assemblies each comprise an extended portion (104, 106, 108) having an aperture (110, 112, 114) therein.
Intelligent Energy Limited


05/07/15
20150125775 

Drainage structure for gas outlet region in fuel cell stack


A fuel cell stack includes a laminated body in which a plurality of electricity generation cells are laminated and is provided with a reaction gas discharge through hole which discharges a reaction gas used in an electricity generation reaction. An end plate is arranged at one end in the lamination direction of the laminated body and is provided with a reaction gas outlet which communicates with the reaction gas discharge through hole.
Honda Motor Co., Ltd.


05/07/15
20150125769 

Method of operating a fuel cell power system


A method of operating a fuel cell power system comprising: supplying a hydrocarbon fuel to a fuel processing system; supplying air and water to the fuel processing system; supplying a hydrogen-rich reformate from the fuel processing system to a fuel cell stack; supplying an anode waste gas from the fuel cell stack to a burner; drawing a load from the at least one fuel cell stack; and detecting an operating temperature of the fuel reformer; wherein supplying air and water to the fuel processing system comprises adjusting an amount of air and water to be supplied based on the load drawn from the fuel cell stack; and supplying the hydrocarbon fuel to the fuel processing system comprises adjusting an amount of hydrocarbon fuel to be supplied based on the detected operating temperature of the fuel reformer.. .
Ballard Power Systems Inc.


05/07/15
20150125767 

Fuel cell system and control the same


A fuel cell system includes a fuel cell stack having a membrane electrode assembly and an internal reactant gas passage, a unit that detects or estimates an actual retained water quantity (r.w.q.), and a power generation control unit having a normal-time mode, a normal-time drying mode and a stop-time drying mode. In the normal-time drying mode, the fuel cell stack is caused to generate electric power while being dried more than in the normal-time mode until the actual r.w.q.
Honda Motor Co., Ltd.


04/30/15
20150120111 

Method and controlling cold start of fuel cell vehicle


A method for controlling a cold start of a fuel cell vehicle includes detecting and storing temperatures at an inlet and an exit of fuel cell cooling water a plurality of times after turning-off of the fuel cell vehicle. A start sequence is controlled based on the lowest temperature of the stored temperatures and temperatures at the inlet and exit of the cooling water at a restart of the vehicle.
Hyundai Motor Company


04/30/15
20150118598 

Method for recovering fuel cell performance by using electrode reversal


A method for recovering fuel cell performance by regenerating electrode characteristics through electrode reversal in order to partially recover performance of a degraded polymer electrolyte fuel cell is provided. The method includes reversing electrodes by supplying an anode of a degraded fuel cell stack with air and supplying a cathode thereof with hydrogen and performing a pulse operation by applying current to the reversed electrodes..
Hyundai Motor Company


04/30/15
20150118597 

Metal separator for solid oxide regenerative fuel cell coated with conductive spinel oxide film, producing the same and solid oxide regenerative fuel cell including the same


Disclosed is a metal separator for a solid oxide regenerative fuel cell coated with a conductive spinel oxide film. In the conductive spinel oxide film, yttrium is added to a manganese-cobalt spinel oxide to suppress growth of an insulating oxide film on the surface of the metal separator and volatilization of metal.
Korea Institute Of Science And Technology


04/30/15
20150118593 

Fuel cell stack


A fuel cell stack includes: a cell stack structure formed by stacking a plurality of cells; a pair of current collectors; a pair of end members; and a fastener band wrapped around a cell stack formed by stacking the cell stack structure, the pair of current collectors, and the pair of end members. Each of the pair of end members includes a plurality of plate members.
Panasonic Corporation


04/30/15
20150118591 

Fuel cell stack assembly


A fuel cell stack assembly comprises a plurality of fuel cells in a stack, the stack defining two opposing parallel end faces. An end plate assembly is provided at each opposing end face of the stack.
Intelligent Energy Limited


04/30/15
20150118587 

Fuel cell stack including dummy cell


A fuel cell stack including a dummy cell for effectively discharging condensate water of the stack is provided. At least one cathode/anode dummy cell is stacked between a reaction of a stack power generator and end plates at both ends of the stack to discharge water out of stack.
Hyundai Motor Company


04/23/15
20150111131 

Sealed water vapor transfer unit assembly with integrated load transferring structure


A water vapor transfer unit assembly is disclosed, the water vapor transfer unit assembly including a plurality of water vapor transfer units having a fluid permeable membrane and a plurality of supports disposed within a sealing frame adjacent an end plate of a fuel cell stack, wherein the sealing frame is adapted to provide support to the end plate and a fuel cell stack of the fuel cell stack system.. .
Gm Global Technology Operations Llc


04/23/15
20150111125 

Alignment feature and alignment in fuel cell stacks


Alignment features and methods for their use are disclosed for purposes of aligning adjacent bipolar plates, and also optionally the membrane electrode assemblies as well as the plates making up the bipolar plates, during assembly of solid polymer electrolyte fuel cell stacks. The alignment features are located within common datum openings and advantageously can be in-plane with the bipolar plates.
Ford Motor Company


04/23/15
20150111123 

Exhaust air guide of a fuel cell stack in a motor vehicle


An exhaust-air guide of a fuel cell stack having a cooling structure, in particular in a motor vehicle, is provided. The cooler structure belongs to the functional environment of the fuel cell stack and is in form through which ambient air flows.
Bayerische Motoren Werke Aktiengesellschaft


04/23/15
20150111116 

Fuel cell system


A fuel cell system according to the present invention comprises a fuel gas supply system that supplies a fuel gas from a fuel supply source to a fuel cell that includes a stack including a plurality of cells, and a fuel off-gas circulation system that resupplies fuel off-gas to the stack. The fuel off-gas circulation system includes: a mixed fuel gas flow path formed such that a mixed fuel gas containing the fuel off-gas and the fuel gas flows in a direction along an inner surface of a manifold installed in the stack; and a point of merger where the fuel off-gas and the fuel gas merge with each other to produce the mixed fuel gas, the point of merger being arranged on one surface side of the manifold.
Toyota Jidosha Kabushiki Kaisha


04/23/15
20150111070 

Starting apparatus and fuel cell vehicle


A starting apparatus of a fuel cell vehicle includes: a fuel cell stack that supplies a driving voltage to a motor; a low voltage battery that supplies a starting voltage to an air blower; and a high voltage dc converter that boosts at least one of the driving voltage and the starting voltage and selectively transmits the boosted voltage to the motor and the air blower. A method of starting the fuel cell vehicle includes transmitting the starting voltage to the high voltage dc converter and boosting the starting voltage when entering a starting mode; driving the air blower with the boosted starting voltage; generating the driving voltage according to starting of the fuel cell stack; blocking the starting voltage to the high voltage dc converter if the driving voltage is equal to or larger than a predetermined voltage value; and supplying the driving voltage to the motor..
Hyundai Motor Company


04/16/15
20150104726 

Device and heating fuel cell stack and fuel cell system having the device


Provided is device and method for heating fuel cell stack and fuel cell system having the device. The fuel cell system includes: a power generating unit having fuel cell stacks arranged with an interval defined between the stacks; an outlet manifold unit provided outside each fuel cell stack and guiding a reaction mixture discharged from each stack to outside; an inlet manifold unit provided on each stack at a location opposed to the outlet manifold unit based on the stack, the inlet manifold unit supplying fuel and air supplied through a fuel supply pipe and an air supply pipe into the stack; and a subsidiary fuel supply unit for supplying subsidiary fuel into the outlet manifold unit such that the subsidiary fuel is burnt in the outlet manifold unit so as to heat both the outlet manifold unit and the stack coming into contact with the outlet manifold unit..
Sk Innovation Co., Ltd.


04/16/15
20150104721 

Performance recovery fuel cell stack


A method for recovering the performance of a fuel cell stack mounted within a vehicle is provided. A method includes a recovery process of continuously applying a predetermined load using a load device when an air supply is stopped and hydrogen is supplied to a fuel cell stack to output current from the fuel cell stack.
Hyundai Motor Company


04/16/15
20150101750 

Bonding apparatus of fuel cell stack and method thereof


A bonding apparatus of fuel cell stack includes a lower heat plate provided at one side of a gas diffusion layer provided at both sides of a membrane electrode assembly, the lower heat plate supplying heat to the gas diffusion layer and including a steam supply line for supplying steam to the gas diffusion layer. An upper heat plate is provided at the other side of a gas diffusion layer, the upper heat plate supplying heat to the gas diffusion layer and including a steam supply line for supplying steam to the gas diffusion layer.
Hyundai Motor Company


04/09/15
20150099215 

Fuel cell stack with enhanced freeze-thaw durability


The present invention provides a fuel cell stack with enhanced freeze-thaw durability. In particular, the fuel cell stack includes a gas diffusion layer between a membrane-electrode assembly and a bipolar plate.
Kia Motors Corporation


04/09/15
20150099213 

Fuel cell stack bus bar assembly systems and methods


Systems and methods are disclosing providing for a fuel cell (“fc”) stack assembly utilizing bus bars that accommodate for variations in fc stack heights during assembly. In some embodiments, bus bars consistent with embodiments disclosed herein may be integrally formed with terminal plates out of a single piece of conductive material.
Gm Global Technology Operations Llc


04/09/15
20150099205 

Manifold for plural fuel cell stacks


An assembly has a plurality of fuel cell stacks with at least one wall. At least one manifold portion is provided outwardly of the at least one wall of each of the fuel cell stacks.
Hamilton Sundstrand Corporation


04/09/15
20150099204 

Regulation of a fuel cell assembly


A fuel cell assembly according to an exemplary aspect of the present disclosure includes, among other things, a first fuel cell stack in series with a variable resistor and a second fuel cell stack in parallel with the first fuel cell stack and in series with a contactor. A resistance level of the variable resistor is adjusted in response to deactivating the contactor..
Hamilton Sundstrand Corporation


04/09/15
20150099200 

Freeze preparation for a fuel cell system


A vehicle includes a fuel cell system, and a controller configured to receive a first signal indicative of a predicted ambient temperature at a specified location, and command the fuel cell system to operate at a reduced relative humidity when the predicted ambient temperature is below a threshold value. A method for controlling a fuel cell system includes receiving a first signal at a controller indicative of a predicted ambient temperature for a specified location, and operating the fuel cell system at a reduced relative humidity when the predicted ambient temperature is below a threshold value.
Ford Global Technologies, Llc


04/02/15
20150093678 

Bonding layer for solid oxide fuel cells


A bonding layer used to join individually formed fuel cell units together to create a solid oxide fuel cell stack can include particles contained within a carrier material. The particles can have at least one material component in common with a porous electrode of a first type and a bimodal particle size distribution.
Saint-gobain Ceramics & Plastics, Inc.


04/02/15
20150093677 

Solid oxide fuel cell stack


Provided is a solid oxide fuel cell stack including: a porous insulating support having a gas permeability and provided with a gas flow path therein; and a plurality of power generating elements which are provided on the insulating support and each of which includes an inner electrode, an electrolyte. An outer electrode, the inner electrode, the electrolyte and the outer electrode are sequentially laminated one another, and the inner electrode of one of adjacent two of the plurality of power generating elements is electrically connected to the outer electrode of the other of the adjacent two of the plurality of power generating elements via an interconnector, so that the plurality of power generating elements are connected in series, wherein the insulating support comprises forsterite, the insulating support contains a mg element and a si element with a concentration of 90 mass % or more in total in terms of mgo and sio2, at least in a surface region on the power generating elements side, and the interconnector comprises titanium-based perovskite type oxide represented by (a,b)(ti,c)o3-δ..
Toto Ltd.


04/02/15
20150093675 

Fuel cell stack including end plate having insertion hole


A fuel cell stack includes a stack including a plurality of unit cells, which is stacked on one another in a predetermined direction, first and second end plates disposed on opposing ends of the stack, and a supply line disposed on a first surface of the first end plate to supply fuel or air to the plurality of unit cells, where an insertion hole is defined in a second surface of the first end plate to be adjacent to the supply line, and the second surface of the first end plate is substantially perpendicular to the first surface of the first end plate.. .
Samsung Electronics Co., Ltd.


04/02/15
20150093674 

Fuel cell stack and separator


A separator of planar shape includes a plurality of grooves which are formed in a first surface of the separator serving as one surface facing a membrane electrode assembly and which extend along a first direction parallel to the first surface. The separator includes a protrusion formed in the first surface and enclosing a first hole, a second hole, and the plurality of grooves.
Brother Kogyo Kabushiki Kaisha


04/02/15
20150093673 

Pem fuel cell stack inlet water regulation system


A fuel cell stack assembly is disclosed that includes a porous member disposed within a flow path for a reactant. A fluid collection member is provided within the flow path adjacent to and in fluid communication with the porous member.
Gm Global Technology Operations Llc


04/02/15
20150093671 

Fuel cell sub-assembly and making it


A sub-assembly for an electrochemical stack, such as a pem fuel cell stack, has a bipolar plate with sealing material extending from its upper face, around the edge of the bipolar plate, and onto its lower face. The bipolar plate is preferably a combination of an anode plate and a cathode plate defining an internal coolant flow field and bonded together by sealing material which also provides a seal around the coolant flow field.
Hydrogenics Corporation


04/02/15
20150093670 

Fuel cell stack


A fuel cell stack includes a stack body formed by stacking a plurality of power generation cells. At one end of the stack body, a terminal plate, an insulating member, and an end plate are stacked.
Honda Motor Co., Ltd.




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Fuel Cell Stack topics: Fuel Cell Stack, Fuel Cell System, Heat Exchanger, Electrolyte, Internal Combustion Engine, Condensation, Evaporative Heat Exchanger, Combustion, Evaporation

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