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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
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 patent thumbnailFuel 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 patent thumbnailMethod 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 patent thumbnailFuel 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 patent thumbnailSolid 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 patent thumbnailSolid 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 patent thumbnailDevice 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 patent thumbnailState 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 patent thumbnailSolid 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 patent thumbnailSolid 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 patent thumbnailMethod 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.


03/03/16
20160064766 

Fuel cell stack


A fuel cell includes a first separator and a second separator. A second protrusion is formed on a first sealing portion of the first separator.
Toyota Shatai Kabushiki Kaisha


03/03/16
20160064765 

Fuel cell stack and fuel cell vehicle


A fuel cell vehicle includes a fuel cell stack and a housing that has first and second end plates and four side plates connecting the sides of the first and second end plates. Projections provided on the first and second end plates have openings communicating with a space formed between an inner wall of the housing and a fuel cell laminate..
Honda Motor Co., Ltd


03/03/16
20160064761 

Fuel cell module


A fuel cell module includes a fuel cell stack, a reformer, and a hydrodesulfurizer. A fuel gas is supplied to the fuel cell stack through a fuel gas supply channel, and the reformer and the hydrodesulfurizer are provided for the fuel gas supply channel.
Honda Motor Co., Ltd.


03/03/16
20160064759 

Hybrid fuel cell


A power generator includes a chemical hydride multilayer fuel cell stack. A flow path extends through the fuel cell stack to provide oxygen containing air to the fuel cell stack and to cool the fuel cell stack.
Honeywell International Inc.


03/03/16
20160064750 

Microvalve


A microvalve assembly (30) is integrated into a printed circuit board (pcb) substrate (31). An aperture (32) in the pcb substrate includes a closure member (33) extending into the aperture.
Intelligent Energy Limited


03/03/16
20160064749 

Flame stabilized mixer-eductor-oxidizer for high temperature fuel cells


A mixer/eductor assembly for use with a fuel cell stack having an anode-side and a cathode-side, said mixer/eductor assembly mixing and at least partially combusting anode exhaust gas output from the anode-side and an oxidant supply gas, said mixer/eductor assembly comprising: a first area receiving and mixing a first portion of the anode exhaust gas and a first portion of the oxidant supply gas to form a first mixture, the first area being configured so as to initiate a combustion reaction in the first mixture; a second area coupled with the first area, the second area receiving to and mixing a second portion of the anode exhaust gas and a second portion of the oxidant supply gas to form a second mixture, wherein: the first mixture has a predetermined oxidant to fuel ratio smaller than the oxidant to fuel ratio of the second mixture; and the first area provides an ignition source to promote continuous combustion of the second mixture in the second area.. .
Fuelcell Energy, Inc.


03/03/16
20160064747 

Fuel cell module


A fuel cell module includes a first casing containing the fuel cell stack, and a second casing containing the first casing, an exhaust gas combustor, and a heat exchanger. The exhaust gas combustor has a combustion gas discharge opening opened to a combustion gas chamber formed between the first casing and the second casing..
Honda Motor Co., Ltd.


03/03/16
20160061902 

Apparatus for diagnosing a state of a fuel cell stack and method thereof


Disclosed are an apparatus and a method for diagnosing a state of a fuel cell stack with high accuracy by reducing the deviation of a harmonic component although the voltage variation of the fuel cell stack is substantial. According to the present invention, a harmonic component is detected by converting the difference between the voltage of the fuel cell stack and a moving average voltage to a frequency and the state of the fuel cell stack is diagnosed based on the size of the detected harmonic component..
Hyundai Motor Company


02/25/16
20160056517 

Device for preventing over pressure of cooling system of fuel cell system


Disclosed is a device for preventing over pressure of a cooling system of a fuel cell system. The device detects a change in a temperature of a coolant discharged from a fuel cell stack and prevents over pressure of the cooling system before pressure of the coolant is elevated by the increase in the temperature.
Hyundai Motor Company


02/25/16
20160056492 

Fuel battery


A fuel gas supply path in a fuel cell stack includes in series a first path, a second path, and a third path. In the second path, two inlets of the fuel gas in each of power generating cells included in the second path are located at a first position pa and a second position pb, and the position of one outlet of the fuel gas in each power generating cell is located at a third position pc.
Ngk Spark Plug Co., Ltd.


02/25/16
20160056484 

Fuel cell system and operating fuel cell system


An object of the present invention is to provide a fuel cell system and a method of operating the fuel cell system which is difficult to give an uncomfortable feeling to a driver or passenger by operation sound of the injector while satisfactorily discharging water. The fuel cell system includes a fuel cell stack having an anode flow path, an injector for supplying hydrogen at a predetermined drive cycle toward the anode flow path by being opened, and an ecu for controlling the injector, wherein the ecu performs a valve opening time extension step in which hydrogen is supplied in a valve opening time longer than that in next and previous drive cycles..
Honda Motor Co., Ltd.


02/25/16
20160056482 

Fuel cell-powered motorcycle


An air-cooled fuel cell-powered motorcycle allowing early detection of a malfunction in a fuel cell stack. The fuel cell-powered motorcycle includes a vehicle body; an electric motor for driving a driving wheel, an air-cooled fuel cell for supplying electric power to the electric motor and a hydrogen tank for storing a fuel gas supplied to the fuel cell, respectively housed in the vehicle body; a fan for supplying air as a reactant and a coolant to the fuel cell; and an exhaust duct for discharging the air having cooled the fuel cell out of a rear end of the vehicle body, the exhaust duct having an inlet connected to a rear end portion of the fuel cell..
Suzuki Motor Corporation


02/18/16
20160049681 

Fuel cell stack


A fuel cell stack 10 includes: a stack body 2 in which a plurality of unit cells 20 is stacked; and an external restriction member that suppresses misalignment between the plurality of unit cells 20 in a second direction perpendicular to a first direction in which the plurality of unit cells 20 is stacked. The external restriction member includes: corner restriction members 303, 304, provided so as to extend entirely over at least two corners of the stack body 2 along the first direction; and a rotation suppressing member 305 provided so as to face one side surface of the stack body 2, the side surface being positioned so as to intersect with a direction in which the stack body 2 may rotate about the corner restriction members 303, 304 as a rotation axis when an impact force along the second direction is applied to the stack body 2 from the outside..

02/18/16
20160049676 

Apparatus and producing fuel cell stack


Disclosed is a method for producing a fuel cell stack. The method for producing a fuel cell stack includes: (a) inserting one or more thin paper between a plurality of gdls; (b) supplying, by a transfer robot, the gdls of step (a) to a gdl supply part and supplying, by the transfer robot, meas to an mea supply part; (c) adsorbing, by the transfer robot, the gdl and the thin paper, respectively, one by one; (d) removing, by a thin paper eliminator, the thin paper of step (c); (e) supplying the gdl and the mea from which the thin paper is removed to a compressor to compress the gdl and the mea so as to form an integrated part; and (f) cutting the integrated part formed in step (e) to a predetermined size by a trimming press..
Kia Motors Corporation


02/18/16
20160049674 

Fuel cell stack, fuel cell stack composite, and fuel cell system


Provided is a fuel cell stack, comprising: a first fuel cell including a first membrane electrode assembly, and a first fuel supply portion having a first in-cell fuel flow channel; a second fuel cell arranged on a main surface of the first fuel cell, and including a second membrane electrode assembly and a second fuel supply portion having a second in-cell fuel flow channel; and a fuel distribution portion including a liquid fuel inlet, a main flow channel connected thereto, and first and second branched flow channels connecting an end of the main flow channel with the first and second in-cell fuel flow channels, respectively, wherein a total length of the first branched flow channel and the first in-cell fuel flow channel is substantially identical to that of the second branched flow channel and the second in-cell fuel flow channel. Also provided is a fuel cell system using the stack..
Sharp Kabushiki Kaisha


02/11/16
20160043427 

Electrical component connection mechanism of fuel cell stack and fuel cell stack


An electric component connection mechanism of a fuel cell stack includes a fuel cell stack body, terminal plates, end plates, and a housing. A plurality of fuel cells that generate electricity by electrochemical reaction of a fuel gas and an oxidant gas are stacked in the fuel cell stack body.
Honda Motor Co., Ltd.


02/11/16
20160043422 

High efficiency fuel cell system with anode gas chemical recuperation and carbon capture


A method of providing anode gas exhaust from a fuel cell stack and carbon dioxide capture by feeding reformed fuel and air into a fuel cell stack where gas exhaust is fed to a series of oxidation/reduction beds to provide exit streams a) of h2o and co2 which is fed to a condenser to recover co2, and b) h2o and co which is recirculated to the fuel cell stack.. .
Siemens Aktiengesellschaft


02/11/16
20160043417 

Method for creating an oxygen depleted gas in a fuel cell system


A method for creating an oxygen depleted gas in a fuel cell system, including operating a fuel cell stack at a desired cathode stoichiometry at fuel cell system shutdown to displace a cathode exhaust gas with an oxygen depleted gas. The method further includes closing a cathode flow valve and turning off a compressor to stop the flow of cathode air..
Gm Global Technology Operations Llc


02/11/16
20160043415 

Fuel cell interconnect


Methods for fabricating an interconnect for a fuel cell stack include placing a compressed metal powder interconnect on a porous support, and sintering the interconnect in the presence of a non-oxidizing gas. The method may further include placing the sintered interconnect on a porous support, and oxidizing the interconnect in the presence of flowing air, or placing the sintered interconnect on a dense, non-porous support, and oxidizing the interconnect in the presence of a gas comprising pure oxygen or an oxygen/inert gas mixture that is substantially nitrogen-free..
Bloom Energy Corporation


02/11/16
20160043413 

Sofc system with selective co2 removal


A system and method in which a high temperature fuel cell stack exhaust stream is recycled back into the fuel inlet stream of the high temperature fuel cell stack. The recycled stream may be sent to a carbon dioxide separation device which separates carbon dioxide from the fuel exhaust stream.
Bloom Energy Corporation


02/11/16
20160039308 

Fuel cell vehicle


A fuel cell electric automobile includes a fuel cell stack, a traction motor, a first control device for controlling output of the fuel cell stack, and a second control device for controlling electrical energy supplied to the traction motor. The first control device is provided vertically above the fuel cell stack, and the second control device is provided vertically below the fuel cell stack and on a lateral side of the traction motor..
Honda Motor Co., Ltd.


02/04/16
20160036084 

Fuel cell stack


Disclosed herein is a fuel cell stack. The fuel cell stack includes: at least one unit stack comprising an assembly of unit cells and an enclosure protecting the unit stack.
Kia Motors Corporation


02/04/16
20160036076 

Method of operating fuel cell system


An operation method of a fuel cell system includes the step of determining whether or not performance recovery control of a fuel cell stack should be started. This operation method includes the step of, if it is determined that the performance recovery control should be started, supplying water content to a membrane electrode assembly by a water content adjusting device, while maintaining power generation voltage of the fuel cell stack at 0.3 v or lower in a state where an oxygen-containing gas is circulated through a closed circulation channel..
Honda Motor Co., Ltd.


02/04/16
20160036072 

Air supply device using cooling water heater of fuel cell vehicle


An air supply device using a cooling water heater of a fuel cell vehicle can effectively reduce cold starting time of the fuel cell vehicle and effectively remove moisture in a stack in cold shut down (csd) of the fuel cell vehicle. In the air supply device, a bypass flow path is formed to be branched from a first air supply line connected between an air blower for supplying air to a fuel cell stack and a humidifier for humidifying the air supplied to the stack.
Hyundai Motor Company


02/04/16
20160036070 

Dynamically controlled heat exchange for cascading startup of fuel cell grids


A “cascading startup controller” provides various techniques for quickly and efficiently initializing grids of interconnected fuel cells. In general, the cascading startup controller dynamically controls heat exchange between fuel cells in the grid to produce a cascading startup of the fuel cell grid via an expanding pattern of excess thermal energy routing from hotter fuel cell stacks to cooler fuel cell stacks.
Microsoft Corporation


02/04/16
20160036068 

Printed multi-function seals for fuel cells


A method for forming seals in a fuel cell stack includes a step of screen printing a first sealing layer on a first flow field plate. The first sealing layer defines a first pattern and has a first predetermined sealing layer thickness.
Gm Global Technology Operations Llc


01/21/16
20160020474 

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 monitoring an exterior temperature.
Hyundai Motor Company


01/14/16
20160013509 

Fuel cell stack and fuel cell system


A fuel cell stack obtained by stacking a plurality of fuel cells has an internal manifold that extends in a stacking direction of the fuel cells to externally discharge a gas used in the fuel cell, and an extension member that adjoins an inner wall surface of the internal manifold and extends in the stacking direction. The extension member is a bar-shaped member provided in an opposite side to a side where a gas from the fuel cells flows to the inside of the internal manifold and has a sloping surface making an acute angle with an inner-wall lower surface of the internal manifold..
Nissan Motor Co., Ltd.


01/14/16
20160013508 

Fuel cell stack and assembly same


A fuel cell stack and a method of assembling a fuel cell stack includes compressing fuel cells along their stacking axis. A compression retention device made up of an enclosure may be used with one or more optional insertable shims to correct for any stack height variations.
Honda Motor Co., Ltd.


01/14/16
20160011071 

Methods and systems for detecting defects in a fuel cell stack


A method for testing a fuel cell stack includes providing a fluid, such as an ammonia-containing fluid, in a first reactant flow path in a first portion of the fuel cell stack, detecting the presence of the fluid using a detector, such as an ammonia detector, positioned within or adjacent to a second portion of the fuel cell stack that is separated from the first portion of the fuel cell stack and determining the presence of a defect in the stack based on detecting the presence of the fluid. Further embodiments relate to testing a fuel cell stack using a microphone that detects an audio signal indicative of a stack defect..
Bloom Energy Corporation


01/07/16
20160006069 

Housing for a fuel cell stack


A housing for a fuel cell stack is disclosed. At least one wall has, at least in some sections, a structure which reinforces the wall.
Daimler Ag


01/07/16
20160006063 

Modular fuel cell systems and methods


A fuel cell module includes a fuel cell stack configured to produce an electrical output, power electronics circuitry configured to convert the electrical output of the fuel cell stack into a regulated output of the fuel cell module, module control electronics circuitry configured for communications within the fuel cell module and further configured for communications with master control electronics circuitry external to the fuel cell module, and a structure configured to connect together the fuel cell stack, the power electronics circuitry and the module control electronics circuitry as part of the fuel cell module that is unitary, and further configured for the unitary fuel cell module to be insertable as a unit into a multi-module system chassis.. .
Watt Fuel Cell Corp.


01/07/16
20160006062 

Energy generating unit comprising a high-temperature fuel cell stack and a vaporizing unit


The invention relates to an energy generation unit comprising a high-temperature fuel cell stack (10), which is operated with liquid fuel, and a reformer (11) connected upstream of the fuel cell stack for processing the fuel, a recirculation line (13) for at least partially feeding back the anode exhaust gas into the reformer (1) and a device for feeding the liquid fuel into the anode exhaust gas. In accordance with the invention, the invention for feeding the fuel is in the form of an evaporator device (20), comprising a housing (21) which has an evaporator nonwoven (23) in the region of the fuel feed line (22), wherein the hot anode exhaust gas can be applied to said evaporator nonwoven from the recirculation line (13)..
Avl List Gmbh


01/07/16
20160006060 

Method of controlling operation of fuel cell system


A method of controlling the operation of a fuel cell system is provided. The method includes diagnosing a water shortage state in a fuel cell stack based on degradation of cooling performance and deterioration of the fuel cell stack and determining a diagnosis level of the fuel cell system based on the diagnosed water shortage state of the fuel cell stack.
Kia Motors Corporation


01/07/16
20160006059 

Driving control method and system of fuel cell system


A driving control system and method of a fuel cell system are provided. The driving control method includes determining, by a controller, when a fuel cell stack is in a water shortage, based on an oversupply of air to the fuel cell stack or a deterioration of the fuel cell stack.
Kia Motors Corporation


01/07/16
20160002030 

Hydrogen generator having liquid delivery member


A hydrogen generator and method for generating hydrogen gas for a fuel cell stack. The hydrogen generator includes container, and a first reactant storage area configured to contain a liquid first reactant.
Intelligent Energy Inc.


12/31/15
20150380745 

Flow field plate for a fuel cell


A flow field plate for a bipolar plate or bipolar plate assembly of a fuel cell or a fuel cell stack has an electrode facing front side, a backside and at least a cooling fluid manifold for supplying cooling fluid to the flow field plate. The backside includes a cooling fluid flow field for substantially uniformly distributing the cooling fluid over the flow field, plate.
Powercell Sweden Ab


12/24/15
20150372334 

Fuel cell and fuel cell stack


A fuel cell including a pair of connectors (12, 13); a single cell (20) having an electrolyte layer (2) and electrode layers (14, 15); and current-collecting members (18, 19) disposed between the electrode layers and the connectors (12, 13), respectively. The current-collecting members (19) corresponding to at least the one electrode layer (15) has connector contact portions (19a) in contact with the connector (13), cell contact portions (19b) in contact with the electrode layer (15), connection portions (19c) connecting corresponding connector contact portions (19a) and cell contact portions (19b), and a spacer (58) disposed between the connector contact portions (19a) and cell contact portion (19b).
Ngk Spark Plug Co., Ltd.


12/24/15
20150372327 

Sealing a fuel cell stack


A fuel cell stack assembly comprises a stack of fuel cells, each fuel cell having an air flow conduit with an input/output ventilation aperture disposed on a ventilation face of the stack, the ventilation apertures forming an array over said ventilation face of the stack. A membrane is moveable between a first configuration in which the ventilation face is occluded and a second configuration in which the ventilation face is not occluded.
Intelligent Energy Limited


12/24/15
20150372326 

Fuel cell system


A fuel cell system is provided having multiple individual fuel cells which are combined to form a fuel cell stack, and having two current collectors which adjoin the two end-side individual fuel cells. The current collectors are each adjoined directly, or with the interposition of an isolation plate, by an end plate.
Bayerische Motoren Werke Aktiengesellschaft


12/24/15
20150372320 

Stack structure for fuel cell


Provided is a fuel cell stack structure. The fuel cell stack structure includes first and second cell modules and first and second separation plates.
Mico Co., Ltd.


12/24/15
20150372319 

Fuel cell and fuel cell stack


A fuel cell including a pair of connectors (12, 13); a single cell (20) having an electrolyte layer (2) and electrode layers (14, 15); and current-collecting members (18, 19) disposed between the electrode layers and the connectors, respectively. The current-collecting members (19) corresponding to at least the one electrode layer (15) has connector contact portions (19a) in contact with connector (13), cell contact portions (19b) in contact with electrode layer (15), connection portions (19c) connecting corresponding connector contact portions (19a) and cell contact portions (19b), and a spacer (58) disposed between connector contact portions (19a) and cell contact portion (19b).
Ngk Spark Plug Co., Ltd.


12/17/15
20150364785 

Apparatus for assembling fuel cell stack


An apparatus for assembling a fuel cell stack includes a cartridge provided on a horizontal surface at an inclined angle and serving to support a plurality of sheets of stack-assembly materials so that a bottom surface and a lateral surface of the stack-assembly material are supported by inner surfaces thereof. An angle-adjustment unit variably adjusts the inclined angle of the cartridge in response to a degree of stacking of the stack-assembly materials..
Kia Motors Corporation


12/17/15
20150364782 

Fuel cell module


A fuel cell module includes a fuel cell stack, a reformer, and an exhaust gas combustor. The fuel cell stack has an oxygen-containing exhaust gas channel and a fuel exhaust gas channel at one end in a stacking direction of fuel cells.
Honda Motor Co., Ltd.


12/17/15
20150364778 

Fuel cell controlling the same


A fuel cell system and a method for controlling the fuel cell system are provided. The fuel cell system includes a compressor that is configured to supply air and a humidifier that includes a supply portion connected to the compressor and an air supply pipe to supply moisture to the supplied air and supply the humidified air to a fuel cell stack.
Hyundai Motor Company


12/17/15
20150362560 

System and diagnosing state of fuel cell stack and controlling fuel cell system


A system and method for diagnosing the state of a fuel cell stack are provided. The method includes simultaneously applying currents having respective first and second frequencies to a fuel cell stack and computing fourier transforms of output currents and voltages from the fuel cell stack based on the applied currents.
Hyundai Motor Company


12/10/15
20150357663 

Power-on shutdown of fuel cell power plant for enhanced durability


A technique is disclosed of modified shut-down of a fuel cell power plant (14) having a fuel cell stack assembly (26) contained with and supplying electrical power to a mobile vehicle (12). The vehicle characteristically proceeds at intervals to a station (10) containing one or more resources (20, 20a, 20b, 20c, etc) utilized by the fuel cell power plant, for resupply thereof.
Audi Ag


12/10/15
20150357657 

Control and heating of fuel cell stack coolant thermal mass


A fuel cell system is includes a fuel cell stack with a cooling line arrangement configured to pass coolant through the stack, a pump configured to move the coolant through the arrangement, and at least one controller. The controller is programmed to, in response to a start-up event for the stack at an ambient temperature less than a first threshold value, initiate operation of the stack and to prevent activation of the pump in order to promote static flow conditions within the arrangement..
Ford Global Technologies, Llc


12/10/15
20150357656 

Fuel cell assemblies and preparation methods therfor


A fuel cell assembly for a solid polymer electrolyte fuel cell stack may employ a construction in which a plastic film frame is used to frame a catalyst coated membrane within. In one advantageous embodiment, the plastic film frame is adhesive coated on one side and laminated at its inner edge to one surface of the catalyst coated membrane and at its outer edge to the flow field plate on the opposite side.
Nissan Motor Co., Ltd


12/03/15
20150349359 

Fuel cell system


A fuel cell system sets the larger one of a stack request compressor supply flow rate calculated based on a request of a fuel cell stack and a system request compressor supply flow rate calculated based on a request by the fuel cell system as a target compressor supply flow rate and controls a compressor according to the target compressor supply flow rate. The fuel cell system also controls a bypass valve based on a stack supply flow rate and a target stack supply flow rate to be supplied to the fuel cell stack.
Nissan Motor Co., Ltd.


12/03/15
20150349354 

Fuel cell stack


A fuel cell stack has a stacked plurality of single cells. Each of the single cells has a membrane electrode assembly, and a pair of separators sandwiching the membrane electrode assembly therebetween.
Nhk Spring Co., Ltd.


11/26/15
20150340724 

Reactant manifolds for fuel cell stacks operating below freezing


At below freezing temperatures, ice blockages can be prevented in the reactant outlet manifolds of solid polymer electrolyte fuel cell stacks by modifying the internal design of the manifolds. The reactant outlet manifold comprises a divider dividing the manifold into an upper duct section and a lower main flow section and the divider comprises a plurality of ports fluidly connecting the duct section to the main flow section.
Ford Motor Company


11/26/15
20150340722 

Fuel cell stack assembly and assembly


A fuel cell stack assembly (100) comprising a first encapsulation member (102) comprising a first end plate (106) and two side walls (108) extending transversely from the first end plate (106). The distal portion of each of the side walls (108) comprises a lip (110).
Intelligent Energy Limited


11/26/15
20150340714 

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 plate layer formed on the base material; and a gold plate layer formed on the underlying plate layer by means of electroless plating.
Toyo Kohan Co., Ltd.


11/26/15
20150340703 

Electrode material, membrane-electrode assembly, fuel cell stack, and manufacturing electrode material


An electrode material according to one embodiment includes an electrode catalyst, which includes a conductive support supporting an active catalyst, and a porous inorganic material partially coating the electrode catalyst. The pore surfaces of the porous inorganic material are modified by a basic functional group.
Jx Nippon Oil & Energy Corporation


11/26/15
20150337971 

Fuel cell compound valve for vehicle


A fuel cell compound valve that opens and closes an inflow line and an exhaust line of a fuel cell stack for a hydrogen fuel cell vehicle includes a support frame having a first bore to which the exhaust line is connected and a second bore to which the inflow line is connected. A first rotation valve is configured to receive a driving torque of a motor installed in the support frame, rotate, and open and close the first bore.
Hyundai Motor Company


11/19/15
20150333356 

Fuel cell stack assembly and assembly


A fuel cell stack assembly comprising: a first encapsulation member (302) comprising a first end plate and two side walls extending transversely from the first end plate; a second encapsulation member (304) comprising a second end plate; one or more fuel cells (330) located between the first end plate and second end plate; and two locking members (310) that are configured to engage with a respective side wall of the first encapsulation member (302) and the second encapsulation member (304), in order to retain the first end plate and the second end plate in a fixed relative position, wherein the side walls of the first encapsulation member (302) are each configured to: engage with the second encapsulation member (304) in order to provide a compression force to the one or more fuel cells (330), and receive the respective locking member (310) in a direction that is parallel to the plane of the one or more fuel cells (330).. .
Intelligent Energy Limited


11/19/15
20150333355 

Fuel cell stack assembly and assembly


A fuel cell stack assembly (200) comprising: a first encapsulation member (202) comprising a first end plate (204) and two side walls (208) extending transversely from the first end plate (204); a second encapsulation member (204) comprising a second end plate (205); and one or more fuel cells located between the first end plate (206) and second end plate (205), wherein the side walls (208) of the first encapsulation member (202) are, or the second encapsulation member (204) is, deformable in order for the first encapsulation member (202) to engage with the second encapsulation member (204) and retain the first end plate (206) and the second end plate (205) in a fixed relative position.. .
Intelligent Energy Limited


11/19/15
20150333346 

Fuel cell stack


A fuel cell stack includes a stacked body, a fluid manifold, a first terminal plate, a first insulator, a first end plate, a terminal electrode, and a heat pipe assembly. The first terminal plate is provided on a first end of the stacked body in a stacking direction.
Honda Motor Co., Ltd.


11/12/15
20150325875 

Fuel cell stack and load bearing method involving use of fuel cell stack


A fuel cell stack has stacked individual fuel cells, each of the fuel cells having a cell frame, and an anode separator and a cathode separator disposed on respective sides of the cell frame, in which an electrolyte membrane joined with an anode side gas diffusion layer and a cathode side gas diffusion layer on respective sides thereof is disposed in the cell frame, an anode side load bearing member that bonds and fixes the anode separator, the cell frame, and the gas diffusion layer to each other, so as to receive a compressive load acting in a stacking direction of the fuel cell, and a cathode side load bearing member that bonds and fixes the cathode separator, the cell frame, and the gas diffusion layer to each other so as to receive a compressive load acting in the stacking direction of the fuel cell.. .
Nissan Motor Co., Ltd.


11/12/15
20150325871 

Procedure for detecting the state of permeability of the ion exchange polymer membrane of a fuel cell


An automated method or procedure for detecting a permeability state of a membrane of a fuel cell stack is provided. The procedure is sensitive enough to detect a defective membrane, and is accurate enough to enable correct maintenance of the fuel cell stack.
Michelin Recherche Et Technique S.a.


11/12/15
20150325870 

Fuel cell stack


A fuel cell stack has a stacked plurality of cell modules, each of the plurality of cell modules comprising a stacked plurality of single cells, each of the plurality of single cells comprising a membrane electrode assembly sandwiched between a pair of separators, a pair of end plates that sandwich the plurality of cell modules in the stacking direction, sealing plates to seal a reactant gas, disposed between the plurality of cell modules and between outermost cell modules and the end plates, and a voltage measuring terminal protruding to an outside of the cells, provided in at least one of the sealing plates.. .
Nissan Motor Co., Ltd.


11/12/15
20150321579 

System and supercharging fuel cell


A technique for supercharging a fuel cell is provided. In particular, a speed of an acceleration pedal is calculated and a first output order value of a fuel cell stack or a second output order value of the fuel cell stack which is smaller than the first output order value is set, in accordance with the value of the calculated speed.
Kia Motors Corporation


11/05/15
20150318565 

System and controlling fuel cell vehicle


A system and method of controlling a fuel cell vehicle are provided. The method includes adjusting power output from a plurality of fuel cell stacks based on entire output power required by a fuel cell vehicle and a state of charge (soc) of a battery..
Hyundai Motor Company


11/05/15
20150318564 

Bop system of solid oxide fuel cell, solid oxide fuel cell stack module, and operating the solid oxide fuel cell


The present invention relates to a balance of plant (bop) system of solid oxide fuel cells including a burner, a reformer, a steam generator, and heat exchangers, wherein the burner, the reformer and the steam generator are laid sequentially on top of each other to transmit the flames and burned gas generated from the burner directly to the reformer and the steam generator disposed sequentially on top of the burner, and the heat exchangers introduce the flue gas discharged from the steam generator thereinto and preheat the process air to be supplied to cathodes of stacks.. .
Korea Institute Of Energy Research


11/05/15
20150318563 

Fuel cell with separator, manufacturing same, and fuel cell stack


A fuel cell with separator includes a fuel cell body having a cathode, an anode, and a solid electrolyte layer disposed between the cathode and the anode; a plate-like metal separator having first and second main surfaces and an opening which opens at the first and second main surfaces; a joint formed of an ag-containing brazing filler metal and adapted to join the fuel cell body and the first main surface of the metal separator; and a seal formed of a glass-containing sealing material and disposed closer to the opening than is the joint, the seal being located between the first main surface and the fuel cell body and extending along the entire perimeter of the opening.. .
Ngk Spark Plug Co., Ltd.


11/05/15
20150318562 

Fuel cell stack


A fuel cell stack has a multiplicity of individual cells, which each include an anode flow field, a membrane electrode arrangement, and a cathode flow field. Each flow field has a media inlet and channels for carrying the media.
Daimler Ag


11/05/15
20150314702 

Emergency power supply system for fuel cell-powered vehicle


An emergency power supply system for a fuel cell-powered vehicle is provided. In particular, the system includes a low voltage dc-dc converter (ldc) designed to convert an output voltage from either a fuel cell stack, or a bi-directional high voltage dc-dc converter into a low voltage and supply the low voltage to a low voltage battery, a dc-dc converter designed to convert an output voltage from either the fuel cell stack or the bi-directional high voltage dc-dc converter into a low voltage, and a fuel cell controller designed to determine whether to supply an output voltage from the dc-dc converter to an output voltage supply line of the low voltage battery..
Hyundai Motor Company


10/29/15
20150311559 

Fuel cell stack


A fuel cell of a fuel cell stack includes a power generation reaction area, a marginal area around the power generation reaction area, and a first reactant gas flow area and a second reactant gas flow area. The first reactant gas flow area and the second reactant gas flow area are provided outside the power generation reaction area and inside the marginal area.
Honda Motor Co., Ltd.


10/29/15
20150311551 

Fuel cell system


A power generation system which is a fuel cell system including a preheating device that preheats a fuel, a preliminary reforming device that reforms the preheated fuel, a fuel cell stack module in which the reformed fuel reacts to generate electric power, and a circulating device that selectively supplies a product generated in the fuel cell stack module to the preheating device.. .
Posco Energy Co., Ltd


10/29/15
20150311548 

Integrated recirculating open cathode fuel cell system


A pem fuel system includes a fuel cell stack comprising one or more pem fuel cells and fan configured to provide process air to supply oxidizer to and cool the fuel cell stack. The system has an air duct coupled to the fan and the fuel cell stack, and an electrical service load coupled to the fuel cell stack for receiving electrical power generated from reactions within the fuel cell stack.
Altergy Systems


10/29/15
20150311547 

Fuel cell cathode balance of plant freeze strategy


A system and method for a cathode subsystem in a fuel cell system. The system includes a fuel cell stack, a cathode inlet line that provides cathode air to a fuel cell stack and a cathode exhaust line that exhausts a cathode exhaust gas out of the fuel cell stack.
Gm Global Technology Operations Llc


10/29/15
20150311538 

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


10/22/15
20150303500 

System and controlling performance of fuel cell stack


A system and method of controlling a performance of a fuel cell stack is provided. In particular, the output performance of the fuel cell stack is determined by comparing the difference between an initial voltage and a voltage after a predetermined time lapses with the difference between the initial voltage and a preset minimum voltage..
Hyundai Motor Company


10/22/15
20150303490 

Method of manufacturing a fuel cell stack having an electrically conductive interconnect


A method of manufacturing a solid oxide fuel cell stack having an electrically conductive interconnect, including the steps of: (a) providing a first fuel cell and a second fuel cell, (b) providing a substrate having an iron-chromium alloy, (c) depositing a layer of metallic cobalt over a portion of substrate surface, (d) subjecting the layer of metallic cobalt to reducing conditions, (e) then exposing the remaining portion of the layer of metallic cobalt to oxidizing conditions for a predetermined time and temperature, such that the surface portion of the layer of metallic cobalt is oxidized to cobalt oxide, thereby forming the electrically conductive interconnect having a layer of metallic cobalt sandwiched between a surface layer of cobalt oxide and the layer of cobalt-iron-chromium alloy, and (f) sandwiching the substrate between the first and second fuel cells.. .
Delphi Technologies, Inc.


10/15/15
20150295268 

Fuel cell stack manufacturing method


A fuel cell stack manufacturing method includes: a step of disposing a fuel cell stack so as to be sandwiched between a first fastening member and a second fastening member; a step of temporarily fastening the fuel cell stack by inserting a jig into a hole-form first connecting portion formed on each end portion of the first fastening member and a second connecting portion formed on each end portion of the second fastening member while applying pressure to the fuel cell stack at a predetermined load; a step of performing aging processing on the temporarily fastened fuel cell stack in order to advance creep deformation of the fuel cell stack; and a step of inserting a pin into the first connecting portion and the second connecting portion while reapplying the pressure.. .

10/15/15
20150295267 

Fuel cell stack


A fuel cell stack has at least two cell modules, each of which includes an integrally-stacked plurality of fuel-cell single cells, and a sealing plate interposed between the cell modules. The sealing plate comprises a sealing member that seals an interface between the sealing plate and an edge part of the cell modules.

10/15/15
20150295266 

Cell module and fuel cell stack


With regard to at least one unit cell out of a plurality of unit cells, when the at least one unit cell is viewed along a stacking direction of the plurality of unit cells, at least one bonding area out of first to third bonding areas is formed at a position that does not overlap with another bonding area.. .

10/15/15
20150295260 

Fuel cell module


A fuel cell (fc) module includes a fuel cell stack and fc peripheral equipment. The fuel cell module includes a first area where an exhaust gas combustor and a start-up combustor are provided, an annular second area around the first area and where a reformer and a heat exchanger are provided, and an annular third area around the second area and where an evaporator is provided..

10/15/15
20150295259 

Fuel cell module


A fuel cell module includes a fuel cell stack and fc peripheral equipment. The fuel cell module includes a first area where an exhaust gas combustor and a start-up combustor are provided, a second area where a reformer and an evaporator are provided, and a third area where a heat exchanger is provided.

10/15/15
20150295257 

Integrated recirculating fuel cell methods


A pem fuel system includes a fuel cell stack comprising one or more pem fuel cells and fan configured to provide process air to supply oxidizer to and cool the fuel cell stack. The system has an air duct coupled to the fan and the fuel cell stack, and an electrical service load coupled to the fuel cell stack for receiving electrical power generated from reactions within the fuel cell stack.

10/15/15
20150295255 

Purge control fuel cell


A purge control system and method is provided. In particular, one or more sensors measure pressures of an anode and a cathode of a fuel cell stack.



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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