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Fuel Cell Stack patents



      

This page is updated frequently with new Fuel Cell Stack-related patent applications.




Date/App# patent app List of recent Fuel Cell Stack-related patents
07/21/16
20160211543 
 Dummy cell and fuel cell stack patent thumbnailnew patent Dummy cell and fuel cell stack
A dummy cell laminated on a fuel cell stack and configured not to perform power generation includes: a common appearance portion having an appearance common with an appearance of a power generation cell used in the fuel cell stack and configured to perform power generation; and a non-common appearance portion having an appearance different from the appearance of the power generation cell.. .
Toyota Jidosha Kabushiki Kaisha


07/21/16
20160211533 
 Fuel cell stack patent thumbnailnew patent Fuel cell stack
A fuel cell stack includes a first power generation unit and a second power generation unit. Wave-like first fuel gas flow passages of the first power generation unit and wave-like first fuel gas flow passages of the second power generation unit are set to mutually different phases.
Honda Motor Co., Ltd.


07/21/16
20160208590 
 Heater and  operating patent thumbnailnew patent Heater and operating
A plurality of heaters is provided where 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. Each of the plurality of fuel cells also includes a conductor electrically connecting the fuel cell stack assembly to an electronic controller which monitors and controls electric current produced by the fuel cell stack assembly.
Delphi Technologies, Inc.


07/21/16
20160207387 
 Fuel cell vehicle and  mounting fuel cell stack on vehicle (as amended) patent thumbnailnew patent Fuel cell vehicle and mounting fuel cell stack on vehicle (as amended)
A fuel cell vehicle which a fuel cell stack is mounted on comprises a stack case that is configured to place the fuel cell stack therein; mounts that are configured to fix the stack case to a vehicle body; ribs, each being provided to be extended from a position adjacent to the mount across an upper surface of the stack case; and a damping member that is provided between adjacent ribs on the upper surface of the stack case. The damping member is a material formed by applying an aluminum sheet on butyl rubber.
Toyota Jidosha Kabushiki Kaisha


07/14/16
20160204461 
 Fuel cell system including multiple fuel cell stacks patent thumbnailFuel cell system including multiple fuel cell stacks
A fuel cell system (100), which includes multiple fuel cell stacks (10, 20) having a pair of adjacent fuel cell stacks (10, 20), namely a first fuel cell stack (10) and a second fuel cell stack (20), each including multiple fuel cells (2), as well as multiple main channels (11, 12, 13) which penetrate the fuel cell stacks (10, 20) for distributing the operating agents to the individual fuel cells (2) is provided. It is provided that the fuel cell stacks (10, 20) of one pair are situated in such a way that a sequence of the main channels (11, 12, 13) is mirror-symmetrical to a plane running between the adjacent fuel cell stacks (10, 20) of the pair, with respect to the different operating agents..
Volkswagen Ag


07/14/16
20160204457 
 Method for operating a fuel cell stack patent thumbnailMethod for operating a fuel cell stack
A method for operating a fuel cell stack which includes a number of fuel cells and at least one gas circuit, where the fuel cells are supplied on the gas inlet side with oxygen and hydrogen as reaction gases, and where at least oxygen is circulated in the fuel cells via the gas circuit, so as to provide a fuel cell stack with a simple structure and reliable intergas removal.. .
Siemens Aktiengesellschaft


07/14/16
20160204456 
 Method for changing a fuel cell system over to a standby mode as well as such a fuel cell system patent thumbnailMethod for changing a fuel cell system over to a standby mode as well as such a fuel cell system
E) switching off the load withdrawal via the external electric circuit at the latest when a prescribed minimum limit voltage of the fuel cell stack has been reached.. .

07/14/16
20160204453 
 Fuel cell module patent thumbnailFuel cell module
A fuel cell module includes a fuel cell stack, a reformer, and an exhaust gas combustor. The fuel cell module further includes an exhaust gas combustion chamber equipped with the exhaust gas combustor and a preheating unit for heating a raw fuel by combustion exhaust gas produced in the exhaust gas combustor before the raw fuel is supplied to the reformer.
Honda Motor Co., Ltd.


07/07/16
20160197366 
 Systems and methods for detecting leaks in a fuel cell system patent thumbnailSystems and methods for detecting leaks in a fuel cell system
Systems and methods for detecting and validating a leak in a fuel cell system are presented. In certain embodiments, various fuel cell stack set points may be adjusted such that adequate h2 flow data may be obtained to identify and validate an h2 leak and/or a location of such a leak.
Gm Global Technology Operations Llc


07/07/16
20160197364 
 Coolant purification patent thumbnailCoolant purification
A fuel cell system comprising a fuel cell stack is disclosed. An ozone generator is configured to introduce ozone into a coolant in the fuel cell system.
Intelligent Energy Limited


07/07/16
20160197361 

Fuel cell separator and fuel cell stack and reactant gas control method thereof


A fuel cell separator, a fuel cell stack having the fuel cell separator, and a reactant gas control method of the fuel cell stack are provided. That is, even when the fuel cell stack operates under the low load operation condition, a reactant gas is supplied to the reactant gas passages of the fuel cell separator, and thus, the length of the passage can be shortened by 50% as compared with the prior art having only one reactant gas passage.
Doosan Corporation


07/07/16
20160197359 

Solid oxide fuel cell stack and manufacturing method therefor


A solid oxide fuel cell stack having a plurality of fuel cells, a metallic layer disposed between adjacent fuel cells, a first conductive material layer disposed between the metallic layer and a first fuel cell of the adjacent fuel cells so as to electrically connect the metallic layer and the first fuel cell, and a second conductive material layer disposed between the metallic layer and a second fuel cell of the adjacent fuel cells so as to electrically connect the metallic layer and the second fuel cell.. .
Murata Manufacturing Co., Ltd.


06/30/16
20160190630 

H2-cl2 proton exchange membrane fuel cells, fuel cell assemblies including the same and systems for cogeneration of electricity and hcl


Fuel cells and, more particularly, the h2—cl2 proton exchange membrane fuels cells are described. In some embodiments the fuel cells include a flow through electrolyte assembly that is configured to allow the introduction of a first (relatively dilute) electrolyte into the cell, and the remove of a second (relatively concentrated) electrolyte from the cell.

06/30/16
20160190620 

Fuel cell system and controlling the same


A fuel cell system and a method of controlling the fuel cell system are provided. The fuel cell system includes at least one bypass valve that is disposed between a passage in an inlet of a fuel cell stack and a bypass passage that is branched from the passage within the inlet and that is connected to a discharge port of the fuel cell stack.

06/30/16
20160190617 

Operating a fuel cell system


An operating method is provided for a fuel cell system with a radiator structure which is flowed through by ambient air and a fuel cell stack, at least part of the outgoing air flow of the fuel cell stack can be guided onto the radiator structure such that, at the radiator structure, the guided outgoing air flow causes an increase in mass flow of the ambient air through the radiator structure according to the jet pump principle. At least part of the outgoing air flow of the fuel cell stack can be guided through a gas expansion machine.

06/30/16
20160190615 

Fuel cell system, motor vehicle containing a fuel cell system, and operating a fuel cell system


A fuel cell system is provided having a plurality of fuel cells combined to form a fuel cell stack. The fuel cell system is characterized in that at least one fuel cell is a redox flow fuel cell having an electrode assembly, which electrode assembly has a proton-permeable separator, which separator is arranged between an anode region and a cathode region.

06/30/16
20160190611 

Fuel cell system as well as vehicle having such a fuel cell system


A fuel cell system including: a fuel cell stack; a cathode gas supply source including a cathode supply path for feeding cathode operating gas into the fuel cell stack and a cathode exhaust gas path for discharging cathode exhaust gas out of the fuel cell stack, and a fuel cell cooling system for cooling the fuel cell stack including a coolant path into which the fuel cell stack is integrated so as to transfer heat is provided. It is provided that the cathode gas supply source also includes a turbine arranged in the cathode exhaust gas path, and the coolant path of the fuel cell cooling system in the flow path of the cathode exhaust gas downstream from the turbine is in heat-transferring contact with the cathode exhaust gas path.

06/30/16
20160190610 

Membrane electrode assembly with frame, fuel cell single cell, and fuel cell stack


A membrane electrode assembly with frame includes a membrane electrode assembly 2 in which an electrolyte membrane 11 is held between a pair of electrode layers 12, 13; and a resin frame 1 disposed around the membrane electrode assembly 2. The frame 1 includes an opening 1a in which the membrane electrode assembly 2 is disposed, a step 1b that is formed along an edge of the opening, and an inner peripheral portion 1c that is deviated to one side of the frame due to the step 1b.

06/30/16
20160185252 

Power net system for fuel cell vehicle and controlling the same


A power net system for a fuel cell vehicle includes: a diode having a first end connected to an output stage of a fuel cell stack; a fuel cell load device branched and connected between the output stage of the fuel cell stack and the diode; a first relay positioned between the output stage of the fuel cell stack and the fuel cell load device and configured to connect or separate the output stage of the fuel cell stack and the fuel cell load device; and a second relay having a first end connected to a second end of the diode and a second end connected between the first relay and the fuel cell load device.. .

06/23/16
20160181636 

Open-loop fuel cell stack start-up with low-voltage source


A fuel cell system is provided that includes a fuel cell stack and an air compressor in communication with a cathode inlet, a hydrogen source in communication with an anode inlet, and a start-up battery adapted to power the air compressor. The start-up battery is at least one of a low-voltage battery and a high-voltage battery.

06/23/16
20160181633 

Complex fuel cell stack with hydrogen storage unit


A complex fuel cell stack with hydrogen storage unit is introduced. Through the new configuration of the pem fuel cell stack, no cooling system and cooling fluid is needed for the fuel cell stack, since hydrogen storage vessel can act as a heat sink to protect the expensive catalyst layer of the mea of the fuel cell away from over-heated and damaged.

06/23/16
20160181628 

Fuel cell stack


Disclosed herein is a fuel cell stack with improved manufacturing performance. The fuel cell stack includes: a separator that comprises a diffusion part, as being provided with a diffusion channel, configured to distribute reaction gas and cooling water and a reaction part, as being continuously formed from the diffusion part and provided with a reaction channel that has a height greater than that of the diffusion channel, configured to move reaction gas distributed from the diffusion part and generate electrons by a chemical reaction; and a gas diffusion layer configured to contact the separator at the diffusion part and the reaction part..

06/23/16
20160181623 

Fuel cell stack


A fuel cell stack includes a stacked body, a first insulator, and a first shim. The stacked body includes electrolyte-electrode assemblies and separators.

06/16/16
20160172703 

Fuel cell stack assembly


A fuel cell stack assembly (101) comprising a fuel cell stack (102) comprising one or more fuel cells and a retaining member (100) comprising a first engaging region (104) that engages a first end face (110) of the fuel cell stack (102), a second engaging region (106) that engages a second opposing end face (112) of the fuel cell stack (102, and a joining region (108) configured to bias the first engaging region (104) towards the second engaging region (106). The retaining member (106) defines a fluid chamber (118) for communicating a fluid to or from the fuel cell stack (102)..
Intelligent Energy Limited


06/16/16
20160172698 

Fuel cell module


A fuel cell module includes a fuel cell stack and fc peripheral equipment. The fc peripheral equipment includes an evaporator.
Honda Motor Co., Ltd.


06/16/16
20160172697 

Fuel cell module


A fuel cell module includes a fuel cell stack and fc peripheral equipment. In the fuel cell module, a stress relaxing portion for relaxing heat stress is provided at least along a boundary between a central area and one of outer annular areas or between the outer annular areas.
Honda Motor Co., Ltd.


06/16/16
20160172691 

Ion filter roof structure of fuel cell for vehicle


An ion filter roof structure of a fuel cell for a vehicle is provided and includes a controller that is connected to a heater, a pump, a 4-way valve, and a radiator disposed within a fuel cell for a vehicle. In addition, a thermal management system of the ion filter roof structure includes an ion filter and a fuel cell stack connected to the controller to form an ion filter roof.
Kia Motors Corporation


06/16/16
20160169979 

Apparatus and measuring impedance for fuel cell diagnosis


An apparatus for measuring impedance for fuel cell diagnosis may include: a current measurement unit configured to measure a current flowing to a load from a fuel cell stack; a voltage measurement unit configured to measure a voltage of the fuel cell stack; and a calculation unit configured to monitor a variation of the current measured through the current measurement unit, perform a frequency analysis operation at each sampling while sampling the current and voltage of the fuel cell stack, and calculate impedance based on the analyzed voltage and current of the fuel cell stack.. .
Hyundai Autron Co., Ltd.


06/09/16
20160164132 

Method for activating fuel cell stack without using electric load


A method for activating a fuel cell stack without using an electric load includes chemically adsorbing hydrogen into a catalyst of a cathode. Oxygen remaining in the stack is removed to seal and store the fuel cell stack while maintaining a negative pressure in the fuel cell stack.
Hyundai Motor Company


06/09/16
20160164131 

Activation apparatus of fuel cell stack for performing automatic activation and performance evaluation


An activation apparatus of a fuel cell stack includes an output cable connecting unit mounted on the frame and connecting a positive output cable of an electric load system to a positive output terminal at one side of the fuel cell stack. A fluid supply pipe connecting unit is mounted on the frame to reciprocate forward and backward with respect to another side of the fuel cell stack.
Hyundai Motor Company


06/09/16
20160164130 

Activation apparatus of fuel cell stack


An activation apparatus of fuel cell stacks, which automatically performs activation and performance evaluation processes on the fuel cell stacks when the fuel cell stacks have entered a frame, includes i) a connector connection assembly configured to connect a plurality of connector probes to cell terminals of the fuel cell stack, ii) an output cable connection assembly configured to connect positive (+) output cables to the first side of the fuel cell stack, and iii) a fluid supply pipe connection assembly configured to connect negative (−) output cables to the second side of the fuel cell stack and to connect a fluid supply pipe to the manifold of the fuel cell stack.. .
Hyundai Motor Company


06/09/16
20160164128 

Hybrid device and hybrid system


A hybrid device includes an electrolysis cell stack device, a fuel cell stack device comprising and a vaporizer. The electrolysis cell stack device includes an electrolysis cell stack including a plurality of electrolysis cells that generate a hydrogen-containing gas from a water vapor-containing gas.
Kyocera Corporation


06/09/16
20160164127 

Control method and system of fuel cell system


A control method and system of a fuel cell system is provided. The control method includes detecting, by a controller, a voltage of a fuel cell stack when power generation of a fuel cell is stopped while a fuel cell vehicle is being driven.
Hyundai Motor Company


06/09/16
20160164126 

Device and monitoring dryness of fuel cell stack


A device and a method for monitoring dryness of a fuel cell stack can accurately determine whether the fuel cell stack is dry or not, to ensure smooth operation and performance of the fuel cell stack during operation of a fuel cell vehicle. The device includes a voltage sensing unit that monitors voltage of the fuel cell stack in real time; a current sensing unit that monitors current of the fuel cell stack in real time; a counting unit that compares the monitored voltage with a standard current-voltage performance curve; and a stack dryness determining unit that determines that the fuel cell stack is dry when a count determined by the counting unit is a standard level or more..
Hyundai Motor Company


06/09/16
20160164124 

Apparatus and controlling hydrogen purging


An apparatus and method for controlling hydrogen purging are provided. The hydrogen purging control apparatus includes a purge valve that is disposed at an outlet on an anode side of a fuel cell stack and is configured to adjust an amount of emission of hydrogen containing impurities.
Hyundai Motor Company


06/09/16
20160164119 

Activation apparatus of fuel cell stack


An activation apparatus of a fuel cell stack is provided. The activation apparatus of a fuel cell stack which is provided to perform activation and evaluate performance of the fuel cell stack while the fuel cell stack enters a frame.
Hyundai Motor Company


06/09/16
20160164111 

Fuel cell assembly


A fuel cell assembly (10) is provided. The fuel cell assembly (10) includes a first endplate (12), a second endplate (14), a plurality of separator plates (16) provided between the first and second endplates (12) and (14), and a plurality of fuel cells (18) forming a fuel cell stack (20).
Temasek Polytechnic


06/09/16
20160164108 

Solid oxide fuel cell, production method therefor, fuel-cell stack, and solid oxide fuel battery


A solid oxide fuel cell, a method of producing the same, a fuel cell stack, and a solid oxide fuel battery. The fuel cell including a solid electrolyte layer, a cathode layer formed on one surface thereof and which contains at least sr, an anode layer which is formed on the other surface of the solid electrolyte layer, and an intermediate layer formed between the solid electrolyte layer and the cathode layer.
Ngk Spark Plug Co., Ltd.


06/02/16
20160156041 

Cell materials variation in sofc stacks to address thermal gradients in all planes


A solid oxide fuel cell having a plurality of planar layered fuel cell units, an electrically conductive flow separator plate disposed between each of the fuel cell units, and a cathode contact material element disposed between each cathode electrode of the fuel cell units and each electrically conductive flow separator plate. The cathodes of the individual fuel cell units are modified such that the operating temperatures of the cathodes are matched with the temperatures they experience based upon their locations in the fuel cell stack.
Versa Power Systems, Ltd.


05/26/16
20160149238 

Apparatus and controlling cooling pump of fuel cell system


A method and apparatus for controlling a cooling pump of a fuel cell system are provided that improve efficiency of the fuel cell system by variably adjusting idle rpm of a pump that cools down stacks within the fuel cell system, based on temperature and flowrate of coolant the apparatus includes a storage that is configured to store a table in which revolutions per minute (rpm) of the cooling pump corresponding to temperature are recorded and a temperature measurer that is configured to measure temperature of a coolant of fuel cell stacks. In addition, a controller operates a pump driver based on the stored table to adjust the rpm of the cooling pump to correspond to the measured temperature of the coolant.
Hyundai Motor Company


05/26/16
20160149237 

Apparatus and preventing moisture condensation


An apparatus for preventing moisture condensation includes a fuel cell stack and an enclosure in which the fuel cell stack is disposed. A heater and a temperature sensor are provided in the enclosure.
Hyundai Motor Company


05/26/16
20160149233 

Fuel cell system with waste heat recovery for production of high pressure steam


A fuel cell system for generating electrical power and high level heat comprising at least one high temperature fuel cell stack having an anode side and a cathode side and adapted to generate electrical power, and a gas oxidizer/high level heat recovery assembly comprising an oxidizer adapted to oxidize one or more of exhaust output from the at least one high temperature fuel cell stack and a gas derived from the exhaust, and to generate high level heat, and a high level heat recovery system adapted to recover the high level heat generated in the oxidizer.. .
Fuelcell Energy, Inc.


05/26/16
20160144719 

Apparatus for compensating for torque of fuel cell electric vehicle and method thereof


An apparatus for compensating for torque of a fuel cell electric vehicle includes: a storage configured to store a first look-up table in which pedal amount correction coefficients corresponding to degradation rates of a fuel cell stack are recorded and a second look-up table in which torques corresponding to pedal amounts are recorded; a degradation rate calculator configured to calculate a degradation rate based on a maximum voltage and an output voltage of the fuel cell stack; a correction coefficient searcher configured to search for a correction coefficient corresponding to the calculated degradation rate using the first look-up table; a pedal amount detector configured to detect a pedal amount indicating a degree to which an acceleration pedal is pressed; and a torque compensator configured to compensate for torque by compensating for the detected pedal amount based on the searched correction coefficient using the second look-up table.. .
Hyundai Motor Company


05/19/16
20160141896 

A segmented fuel cell-battery passive hybrid system


An apparatus for supplying electrical energy to a varying load is disclosed. The apparatus comprises fuel cells and energy storage devices.
Imperial Innovations Limited


05/19/16
20160141707 

Method and components for repairing a ceramic fuel cell stack assembly


There is disclosed a method and components for repairing a fuel cell stack. In particular, the method and components relate to repairing a high temperature fuel cell stack incorporating ceramic components.
Lg Fuel Cell Systems Inc.


05/19/16
20160141706 

Components and methods for manufacture and assembly of a fuel cell stack


A fuel cell stack which is amenable to simple manufacturing processes and is thermally and mechanically compliant. The fuel cell stack reduces the number of components by combing fuel cell tubes to form tube sub-assemblies, the tube sub-assemblies comprising end fittings connected to the fuel cell tubes, the end fittings provided with at least one or preferably a plurality of channels to provide equal distribution of fuel throughout the fuel cell tubes..
Lg Fuel Cell Systems Inc.


05/19/16
20160141705 

Fuel cell stack assembly


There is provided a fuel cell stack assembly being thermally and mechanically compliant. The fuel cell stack comprises fuel feed pipe and fuel outlet pipe, a plurality of bundles of fuel cell tube sub-assemblies, the bundles being separated by an expansion gap to prevent thermal and mechanical stresses propagating from one bundle to an adjacent bundle..
Lg Fuel Cell Systems Inc.


05/19/16
20160141704 

Manifold block assembly for fuel cell vehicles


A manifold block assembly for a fuel cell vehicle mounted on a fuel cell stack and supplying air and hydrogen to the stack, includes a manifold block in which a hydrogen discharge path connected to a hydrogen line formed in the stack, an air discharge path connected to an air line formed in the stack, and a watertight bulkhead are integrally formed with each other. The manifold block assembly further includes a hydrogen inflow pipe configured to be attached to the manifold block and connected to the hydrogen line formed in the stack.
Kia Motors Corporation


05/19/16
20160141692 

Improved fuel cell systems and methods


The present invention is concerned with improved fuel cell systems and methods. The present invention provides an intermediate-temperature solid oxide fuel cell (it-sofc) system comprising: (i) at least one fuel cell stack comprising at least one intermediate-temperature solid oxide fuel cell, and having an anode inlet, a cathode inlet, an anode off-gas outlet, a cathode off-gas outlet, and defining separate flow paths for flow of anode inlet gas, cathode inlet gas, anode off-gas and cathode off-gas; and (ii) a steam reformer for reforming a hydrocarbon fuel to a reformate, and having a reformer inlet for anode inlet gas, a reformer outlet for exhausting anode inlet gas, and a reformer heat exchanger; and defining: (a) an anode inlet gas fluid flow path from a fuel source to said steam reformer to said at least one fuel cell stack anode inlet; (b) an anode off-gas fluid flow path from said at least one fuel cell stack anode off-gas outlet to a fuel cell system exhaust; (c) a cathode inlet gas fluid flow path from an at least one oxidant inlet to said reformer heat exchanger to said at least one fuel cell stack cathode inlet; and (d) a cathode off-gas fluid flow path from said at least one fuel cell stack cathode off-gas outlet to said fuel cell system exhaust; wherein said reformer heat exchanger is a parallel-flow heat exchanger in fluid flow communication with (i) said at least one oxidant inlet and said at least one fuel cell stack cathode inlet, and (ii) said fuel source and said at least one fuel cell stack anode inlet, and is arranged for exchanging heat between said cathode inlet gas and said anode inlet gas..
Ceres Intellectual Property Company Limited


05/19/16
20160141675 

Fuel cell system and operation control the same


A controller updates a lower limit voltage threshold in accordance with the restoration of an fc voltage until the operation status is restored to a normal operation from an operation having low power generation efficiency, such as an intermittent operation and a warmup operation (step s1). The controller increases an fc current in accordance with the updated lower limit voltage threshold (steps s2 and s3) to thereby satisfy both the requirements of the restoration of the output voltage of the fuel cell stack and the improvement of the electric power responsiveness..

05/19/16
20160141666 

System for controlling low-temperature starting of fuel cell vehicle and the same


A system for controlling low-temperature starting of a fuel cell vehicle includes a high-pressure hydrogen flow control valve controlling a flow of hydrogen supplied to a fuel cell stack. A fuel cell controller is configured to change and control an opening rate of the high-pressure hydrogen flow control valve when an internal temperature of the fuel cell stack is a reference value or less.
Hyundai Motor Company


05/19/16
20160141661 

Air processing system of fuel cell vehicle mounted with integrated valve


An air processing system of a fuel cell vehicle mounted with an integrated valve includes: the integrated valve attached to an air inlet and an air outlet formed integrally with a fuel cell stack and adjusting amounts of air introduced into and discharged from the fuel cell stack. The integrated valve is positioned at the shortest distance from the fuel cell stack, such that an amount of remaining oxygen that is to be consumed at the time of stopping start of a fuel cell vehicle is minimized.
Hyundai Motor Company


05/19/16
20160141652 

Fuel cell system


A fuel cell system, includes: a fuel cell stack that is formed by stacking fuel cells for causing electrochemical reaction of a fuel gas and an oxidizing gas; a fuel gas supply system that is configured to supply the fuel gas to the fuel cell stack from a supply source of the fuel gas; a fuel gas recirculating system that is configured to resupply to the fuel cell stack the fuel gas discharged from the fuel cell stack; and a piping member is configured to connect a junction between the fuel gas supply system and the fuel gas recirculating system with the supply source, the piping member having a bent portion that is curved such that a supply direction of the fuel gas from the supply source is reverse to a flowing direction of the fuel gas toward the junction.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141648 

Coolant purification


A fuel cell system comprises an antimicrobial patterned surface. The fuel cell system may comprise a fuel cell stack, a coolant reservoir, and a coolant flow path configured to supply coolant from the coolant reservoir to the fuel cell stack.
Intelligent Energy Limited


05/19/16
20160141637 

Fuel cell separator, fuel cell current collector plate, fuel cell and fuel cell stack


A separator used in a fuel cell is provided, the separator including: a separator main body that includes a fluid flow region through which a reactive gas or a coolant flows, a through-hole through which the reactive gas or the coolant flows, and a connection portion which connects the fluid flow region and the through-hole; and a flow rectifying portion that is arranged by being adhered on the connection portion and that rectifies flow of the reactive gas or the coolant between the fluid flow region and the through-hole, where the flow rectifying portion includes a plurality of protruded portions and a coupling portion which is thinner than the protruded portions and which couples the protruded portions.. .

05/19/16
20160141633 

Fuel cell stack


The fuel cell stack formed by arranging a terminal on both ends of a cell stacked body in which a plurality of cells including a membrane electrode assembly and separators interposing the membrane electrode assembly therebetween is stacked, includes a rust preventive plate which is arranged between a metal separator and a positive electrode terminal on a high potential side of the cell stacked body, and includes a material more noble than that of the separator in the surface.. .

05/12/16
20160133968 

Fuel cell unit


A fuel cell unit has a structure that enables the maximum use of a cell monitor in the height direction (vertical direction), in order to achieve this, the fuel cell unit comprises a fuel cell stack (3) including a cell stack body in which unit cells are stacked; and a cell monitor (6) for monitoring a voltage of the unit cells, wherein the cell monitor (6) is arranged so as to be inclined relative to a vertical direction. The cell monitor is inclined by providing a part of the cell monitor in the vicinity of a heat-generating part in a fuel cell on an opposite side of the heat-generating part relative to a central part in the vertical direction of the cell monitor and providing a part of the cell monitor in an area other than the heat-generating part in the fuel cell on a heat-generating part side relative to the central part in the vertical direction of the cell monitor..
Toyota Jidosha Kabushiki Kaisha


05/12/16
20160133959 

Control method and system of fuel cell system


A control method and system of a fuel cell system are provided. The control method includes draining the voltage of a fuel cell stack by charging a high voltage battery.
Kia Motors Corporation


05/12/16
20160133958 

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


An exhaust air guide of a fuel cell stack is provided, in particular in a motor vehicle, with a cooling device which belongs to the functional environment of the fuel cell stack and is in the form of a cooler structure through which ambient air flows. At least some of the exhaust air of the fuel cell stack is guided into the cooler structure or behind the cooler structure, as viewed in the direction of flow of the ambient air through the cooler structure, to such an extent that, at the cooler structure, the exhaust air flow brings about an increase in the mass flow of the ambient air through the cooler structure in accordance with the jet pump principle or, at the cooler structure, the exhaust air flow, in accordance with the jet pump principle, brings about a pressure difference conveying at least a portion of the ambient air through the cooler structure..
Bayerische Motoren Werke Aktiengesellschaft


05/12/16
20160133957 

Fuel cell stack


A fuel cell stack 11 includes a cell laminate 21 composed of a plurality of stacked cells 20, and air is introduced from an anode end part 21a of the cell laminate 21. The cell laminate 21 has two end cells 24 installed adjacently to a cathode end part 21b side, thereby providing the cathode end part 21b with high thermal insulation properties..
Toyota Jidosha Kabushiki Kaisha


05/12/16
20160133944 

Catalyst layer with through-holes for fuel cells


The performance of solid polymer electrolyte fuel cell stacks can be improved by incorporating an appropriate set of through-holes in the catalyst layers, and particularly in the cathode catalyst layers. Intaglio methods suitable for manufacturing catalyst layers with through-holes are disclosed..
Daimler Ag


05/05/16
20160126573 

Method for diagnosing current sensor of fuel cell system


A method for diagnosing a current sensor of a fuel cell system includes calculating an estimated duty value of a hydrogen pressure control valve, corresponding to a sensing value of the current sensor, while operating the fuel cell system. The estimated duty value is compared with an actual duty value where the hydrogen pressure control valve is controlled during the operation of the fuel cell system, thereby calculating an error value between the estimated duty value and the actual duty value.
Hyundai Motor Company


05/05/16
20160126569 

Manifold device of fuel cell stack


A manifold device of a fuel cell stack is provided which prevents moisture condensed in gases supplied to the fuel cell stack from excessively flowing into specific cells of the stack by heating gases supplied into the stack using heat of the stack. The manifold device also prevents flooding that is caused by liquid generated in cells disposed away from a gas inlet by removing a flow rate difference of gases generated in respective cells based on distances from the gas inlet of the stack..
Hyundai Motor Company


05/05/16
20160126566 

Fuel cell system


When it is judged that a fuel cell stack is drying up, recovery control is performed. In recovery control, the cathode pressure control valve is controlled so that the cathode pressure becomes an increased cathode pressure, a discharge flow rate of air of a turbocompressor is set to an increased flow rate of air, and a bypass control valve is controlled so that a flow rate of air which is fed to the fuel cell stack is maintained at the requested flow rate of air.
Toyota Jidosha Kabushiki Kaisha


05/05/16
20160126565 

System and controlling temperature of fuel cell stack


A system and method for controlling a temperature of a fuel cell stack are provided. The method includes performing a pump off mode which turns off the cooling water pump or operates the cooling water pump while reducing the rotation speed of the cooling water pump to be less than the reference rotation speed, when a cooling water outlet temperature is equal to or less than a preset first temperature while a pump normal mode which adjusts a rotation speed of a cooling water pump to be equal to or greater than a preset reference rotation speed and varies rpm based on the cooling water outlet temperature is performed.
Hyundai Motor Company


05/05/16
20160126564 

Ceramic substrate for electrochemical element, manufacturing method therefore, fuel cell, and fuel cell stack


A ceramic substrate for an electrochemical element that includes a ceramic layer and a high-thermal-expansion-coefficient material layer that is laminated on the surface of the ceramic layer. The high-thermal-expansion-coefficient material layer has a higher coefficient of thermal expansion than the ceramic layer, and applies compressive stress to the ceramic layer..
Murata Manufacturing Co., Ltd.


04/28/16
20160118678 

Method to reduce pressure when injectors are stuck open under faulted conditions and remedial action to prevent walk-home incident


A method for controlling a fuel cell system, capable of quickly detecting the pressure rise caused by a faulted open anode injector, reducing pressure in the fuel cell stack when the fault occurs, and taking remedial action to allow continued operation of the fuel cell stack, and militate against a walk-home incident.. .
Gm Global Technology Operations Llc


04/28/16
20160118672 

Current collector for fuel cell, and fuel cell stack


In order to reduce corrosion of metal plates of a current collector which is comprised of the stacked metal plates made of different materials, a current collector for a fuel cell is provided, which includes a first metal plate that has a terminal portion and is conductive, and a second metal plate and a third metal plate that are metal plates having a higher corrosion resistance than the first metal plate and pinch the first metal plate therebetween. The current collector includes a first through-hole penetrating the first metal plate, the second metal plate, and the third metal plate, wherein fluid exists in at least either one of between the first metal plate and the second metal plate, and between the first metal plate and the third metal plate, and the first through-hole guides the fluid outside the current collector, and a first seal member blocking an end face of a perimeter of the current collector.
Toyota Jidosha Kabushiki Kaisha


04/21/16
20160111748 

Oxidation gas discharging structure


An oxidation gas discharging structure is applied to a fuel cell stack that includes an end plate arranged on an end of a fuel cell body. The oxidation gas inside the fuel cell body is discharged to the outside through a through hole extending through the end plate.

04/21/16
20160111738 

Flat plate type solid oxide fuel cell stack unit and flat plate type solid oxide fuel cell stack module


A flat plate type solid oxide fuel cell stack module is obtained by stacking a plurality of flat plate type solid oxide fuel cell stack units. Each of the cell stack unit comprises an anode plate, a cell unit and a cathode plate.

04/21/16
20160111733 

Current collector for fuel cell, fuel cell stack, fuel cell system, and manufacturing fuel cell system


In order to suppress an increase in electric resistance when retrieving electric power collected from a fuel cell stack, a current collector for a fuel cell is provided. The current collector includes a current collecting portion for collecting electric power generated by the fuel cell, and a terminal portion for outputting the power collected by the current collecting portion.

04/14/16
20160104911 

Fuel cell


A fuel cell is provided, which includes a fuel cell stack having a stacked structure in which a plurality of unit cells generating electric power are stacked, terminal plate that is joined to end of the fuel cell stack and collects the generated electric power, and insulating plate disposed outside the terminal plate. The terminal plate is provided with a first gas discharge manifold communicating with an in gas discharge manifold on a gas discharge side.

04/07/16
20160097137 

Fuel cell stack and manufacturing the same, fuel cell module, high-temperature water vapor electrolysis cell stack, and manufacturing the same


A fuel cell stack 101 includes a plurality of fuel cells 105 in which a fuel electrode 109, a solid oxide electrolyte 111, and an air electrode 113 are sequentially laminated, an interconnector 107 that electrically connects the fuel cells 105 which are adjacent to each other, and an interconnector connecting layer 108 that is interposed directly between the air electrode 113 and the interconnector 107. The interconnector connecting layer 108 is formed from a material, which is expressed by a composition formula of (la1-x-ysrxcay)zmno3-appmsio2-dppmmgo (provided that, 0<x≦0.4, 0<y≦0.4, 0.1≦x+y≦0.5, 0.95≦z<1, a: 10 to 300, d: 10 to 400), through firing..
Mitsubishi Hitachi Power Systems, Ltd.


04/07/16
20160096445 

Method and system for diagnosing fuel cell stack


A system and method for diagnosing a fuel cell stack are provided. The method includes determining, by a controller, a time at which diagnosing the fuel cell stack is required based on a plurality of factors and driving a motor adjusted to a first efficiency value for a predetermined first reference time period based on the diagnosis determination.
Hyundai Motor Company


03/31/16
20160093911 

Fuel cell stack


A first end plate that constitutes a fuel cell stack is provided with an oxidant gas supply manifold member that connects an oxidant gas inlet communication hole and a circular external pipe. The oxidant gas supply manifold member has a non-circular opening portion that communicates with the oxidant gas inlet communication hole and a circular opening portion that communicates with the circular external pipe.
Honda Motor Co., Ltd


03/31/16
20160093910 

Solid oxide fuel cell stack


Wherein a, b, c, and d are a positive real number that satisfies 0.1≦a≦0.8, 0.1≦b≦0.8, 0.05≦c≦0.2, and 0.2≦d≦0.5.. .

03/31/16
20160093909 

Solid oxide fuel cell stack


There is provided a solid oxide fuel cell stack including an interconnector that has excellent electrical conductivity, gas sealing property, and adhesion to a solid electrolyte. The solid oxide fuel cell stack includes a plurality of power generation elements, each of which including at least a fuel electrode, a solid electrolyte, and an air electrode stacked in that order; and an interconnector that electrically connects the air electrode in one of adjacent power generation elements in the plurality of the power generation elements to the fuel electrode in the other power generation element, the plurality of power generation elements being connected in series to each other, wherein an intermediate layer having a porosity of not more than 1% and an electrical conductivity of not less than 0.05 s/cm is provided between the interconnector and the fuel electrode in the other power generation element..
Toto Ltd.


03/31/16
20160093906 

Device and controlling cold start of fuel cell system


A device and a method for controlling a cold start of a fuel cell system are provided and are capable of increasing a fuel cell load to reduce a cold start time using a kinetic energy storage method for a rotor of a motor for driving a fuel cell system. The method improves cold start performance by performing self-heating of a fuel cell stack based on an increase in an output current amount of a fuel cell and by restricting a motor torque simultaneously with generating the motor torque while applying a current to a motor when a vehicle stops to consume an output current of the fuel cell..
Hyundai Motor Company


03/31/16
20160093903 

State diagnostic apparatus of fuel cell stack


An apparatus for diagnosing a state of a fuel cell stack is provided. The apparatus may diagnose the state of the fuel cell stack without including the dc-dc converter which boosts the dc voltage and the inverter which converts the boosted dc voltage into the ac voltage.
Hyundai Motor Company


03/31/16
20160093897 

Solid oxide fuel cell stack


A solid oxide fuel cell stack includes a support, a plurality of power generation elements provided on a surface of the support, the plurality of power generation elements connected in series, each including at least a fuel electrode, a solid electrolyte, and an air electrode stacked in that order, and an interconnector that electrically connects an air electrode in one of adjacent power generation elements to a fuel electrode in the other power generation element. A solid electrolyte in adjacent one power generation element is provided between a fuel electrode in the adjacent one power generation element and the fuel electrode in the adjacent other power generation element, and an insulating member is provided at a position that is on the solid electrolyte in the adjacent one power generation element and between the air electrode in the adjacent one power generation element and the solid electrolyte therein..
Toto Ltd.


03/31/16
20160093896 

Solid oxide fuel cell stack


A solid oxide fuel cell stack includes a support, a plurality of power generation elements connected in series, each including a fuel electrode, a solid electrolyte, and an air electrode stacked in that order on the support, and an interconnector electrically connecting an air electrode in one of the two adjacent power generation elements to a fuel electrode in the other power generation element. A solid electrolyte for one of the power generation elements is provided on the downside of the interconnector provided on the downside of the air electrode in the one power generation element so that the solid electrolyte is joined to the interconnector, and a solid electrolyte for the other power generation element is provided on the upper side of the interconnector provided on the upper side of the fuel electrode for the other power generation element so that the solid electrolyte is joined to the interconnector..
Toto Ltd.


03/24/16
20160087298 

Method for testing feeding fuel cell stack and producing fuel cell stack using the same


A producing method of a fuel cell stack includes a transfer robot configured to clamp and to transfer a membrane electrode assembly (mea) and a gas diffusion layer (gdl) component. A feeding testing unit is configured to check a stacked status of the mea and the gdl component while the mea and the gdl component are transferred and stacked by the transfer robot.
Kia Motors Corporation


03/24/16
20160087297 

Cooling system for fuel cells


A fuel cell assembly has a fuel cell with a membrane electrode assembly disposed between an anode fluid flow plate and a cathode fluid flow plate. The cathode flow plate defines a flow channel for conveying oxidant to the membrane electrode assembly.
Intelligent Energy Limited


03/24/16
20160087293 

Ventilation apparatus and control method thereof


A ventilation apparatus includes: a controller that determines whether insulation resistance between a fuel cell stack and an enclosure including the fuel cell stack is equal to or smaller than a preset value, and varies a degree of opening of a valve provided between an inlet provided on one side of the enclosure and an air blower injecting air to an interior of the enclosure through the inlet based on the determination.. .
Hyundai Motor Company


03/24/16
20160087291 

Rotatable heater of fuel cell system and control method thereof


A rotatable heater of a fuel cell system includes a heater housing, into and out of which a coolant for cooling a fuel cell stack flows, and which defines a coolant chamber therein. A motor is driven by an electrical energy generated from the fuel cell stack or by another power source.
Hyundai Motor Company


03/24/16
20160087289 

Gas and condensed water discharge system for fuel cell system and control method thereof


Disclosed are a system and a method for discharging a gas and condensed water for a fuel cell system. The gas and condensed water discharge system comprises: a fuel cell stack that includes cathodes and anodes and produces an electric current by an electrochemical reaction of oxygen and hydrogen; a water trap that temporarily stores gases and water discharged from anodes of the stack and condensed water; an integrated drain valve that is mounted at the water trap so as to generate the gas flow path for gases and the condensed water passing through a discharge portion of the integrated drain valve and discharged out of the water trap; and a controller that discharges the gases and the condensed water by opening and closing the integrated drain valve..
Hyundai Motor Company


03/24/16
20160084915 

Apparatus and measuring impedance of fuel cell stack


An apparatus and method for measuring impedance of a fuel cell stack capable of accurately measuring the impedance even when a dc current of the fuel cell stack is changed depending on fluctuation of a load, by compensating for an ac voltage (or ac current) used to measure the impedance of the fuel cell stack based on a dc current of the fuel cell stack.. .
Hyundai Motor Company


03/17/16
20160079621 

Fuel cell system and control method thereof


A fuel cell system comprises a fuel cell stack, a circulation flow path of a cooling medium, a pump provided in the circulation flow path, a supply-side temperature sensor provided to detect a supplied cooling medium temperature, a discharge-side temperature sensor provided to detect a discharged cooling medium temperature, and a cold-start controller configured to control a circulation volume of the cooling medium by the pump at a cold start of the fuel cell stack. The cold-start controller estimates a fuel cell internal temperature and selectively sets the circulation volume of the cooling medium between a reduced volume and a normal volume, based on a magnitude relationship between the internal temperature and the discharged cooling medium temperature.
Toyota Jidosha Kabushiki Kaisha


03/17/16
20160079620 

Hydrogen purging device and fuel cell system


A hydrogen purging device and method for a fuel cell system are provided in which the opening/closing of a hydrogen purge valve is variably controlled based on a purge charge amount depending on an operating state of a fuel cell in the fuel cell system to improve the hydrogen utilization factor of the fuel cell, system efficiency, hydrogen circulation performance, and the like. The hydrogen purging device includes an operating state detector that detects an operating state of a fuel cell stack and a controller that determines an opening time of a hydrogen purge valve based on information regarding the stack operating state detected by the operating state detector.
Hyundai Motor Company


03/17/16
20160079619 

Humidification fuel cell system


A humidification apparatus for a fuel cell system is provided herein. A membrane humidifier includes humid air inlets, through which humid air discharged from a cathode of a fuel cell stack is introduced, and air outlets, through which air humidifying dry air in hollow fiber membranes is discharged, an air line connected from a cathode outlet of the fuel cell stack to the humid air inlets of the membrane humidifier to supply humid air.
Hyundai Motor Company


03/17/16
20160079618 

Fuel battery system


There are provided a hydrogen tank for compressed storage of hydrogen gas, as fuel gas, at high pressures; a fuel cell stack for generating and supplying power using the hydrogen gas from the hydrogen tank; a hydrogen supply path interconnecting the hydrogen tank and the fuel cell stack; a shutoff valve for allowing supply of the hydrogen gas from the hydrogen tank by opening or closing the hydrogen supply path; a fuel supply valve, situated downstream of the shutoff valve, with respect to a supply direction of oxygen gas, for allowing supply of hydrogen gas to fuel cell stack; and an ecu for controllably causing the fuel supply valve to assume its closed state and the shutoff valve to assume its opened state during filling the hydrogen tank with hydrogen gas.. .
Suzuki Motor Corporation


03/17/16
20160079610 

Insulating structure, fuel cell and fuel cell stack


This insulating structure is for a fuel cell stack or a fuel cell of the fuel cell stack. The fuel cell stack includes a membrane electrode assembly with a peripheral frame and a pair of separators that hold the frame and the membrane electrode assembly in between and is formed by stacking a plurality of sets of the membrane electrode assembly and the pair of separators.
Nissan Motor Co., Ltd.


03/10/16
20160072146 

Modular fuel cell system


A fuel cell stack module includes a base, a cover dome removably positioned on the base, and a plurality of fuel cell stacks removably positioned on the base below the cover dome. A modular fuel cell system includes a plurality of the fuel cell stack modules, where each fuel cell stack module may be electrically disconnected, removed from the fuel cell system, repaired or serviced without stopping an operation of the other fuel cell stack modules in the fuel cell system..
Bloom Energy Corporation


03/10/16
20160072145 

Fuel cell stack assembly - datum design for fuel cell stacking and collision protection


A system and method for aligning and reducing the relative movement between adjacent fuel cells within a fuel cell stack. The inter-cell cooperation between fuel cells along a stacking dimension is enhanced by one or more datum placed along the edge of a bipolar plate that makes up a part of a cell-containing assembly.
Gm Global Technology Operations Llc


03/10/16
20160072140 

Pem fuel cell stack


A fuel cell includes a cathode flow field plate, an anode flow field plate, and a membrane electrode assembly (mea) sandwiched between the cathode and anode flow field plate. The cathode flow field plate has a flat side and an opposed channel side that the mea is sandwiched between the anode flow field plate and the flat side of the cathode flow field plate.
Wuhan Troowin Power System Technology Co., Ltd.


03/10/16
20160072138 

Fuel cell system


A fuel cell system (100) comprises a first fuel cell stack (102), a second fuel cell stack (104) in series with the first fuel cell stack (102), and a first rectifier (106) in parallel with the first fuel cell stack (102). The fuel cell system (100) also comprises a controller (110) configured to modulate air flow through the first fuel cell stack (102) independent of current demand on the fuel cell system (100) to provide rehydration intervals that increase the hydration levels of the first fuel cell stack (102)..
Intelligent Energy Limited


03/10/16
20160072136 

Cell structure for fuel cell stack


A cell structure for a fuel cell stack that is formed by stacking unit cells c each including a membrane electrode assembly 1 and a pair of separators 2 holding the membrane electrode assembly 1 therebetween. The membrane electrode assembly 1 includes a frame 3 in the periphery having such a size as to extend outward over the edges of the separators 2.
Nissan Motor Co., Ltd.




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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