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Fuel Cell Stack patents



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


Apparatus and method for controlling fuel cell system

Sk Innovation

Apparatus and method for controlling fuel cell system

Heater

Delphi Technologies

Heater

Date/App# patent app List of recent Fuel Cell Stack-related patents
03/05/15
20150064598
 Fuel cell stack sealing methods, apparatus, and systems patent thumbnailnew patent Fuel cell stack sealing methods, apparatus, and systems
Methods, apparatus, and systems for improving and/or simplifying one or more seals in a fuel cell stack, such as a vehicle fuel cell stack. In some implementations, a plate or assembly for the stack may be extruded through an extrusion die so as to create a plate comprising a top surface, a bottom surface, and a plurality of cavities disposed between the top and bottom surfaces.
Gm Global Technology Operations Llc
03/05/15
20150064597
 Metal supported solid oxide fuel cell patent thumbnailnew patent Metal supported solid oxide fuel cell
A process for forming a metal supported solid oxide fuel cell, the process comprising the steps of: a) applying a green anode layer including nickel oxide, copper oxide and a rare earth-doped ceria to a metal substrate; b) firing the green anode layer to form a composite including oxides of nickel, copper, and a rare earth-doped ceria; c) providing an electrolyte; and d) providing a cathode. Metal supported solid oxide fuel cells comprising an anode a cathode and an electrolyte, wherein the anode includes nickel, copper and a rare earth-doped ceria, fuel cell stacks and uses of these fuel cells..
Ceres Intellectual Property Company Limited
03/05/15
20150064596
 Process for forming a metal supported solid oxide fuel cell patent thumbnailnew patent Process for forming a metal supported solid oxide fuel cell
A process for forming a metal supported solid oxide fuel cell is provided. The process can include the steps of: a) applying a green anode layer including nickel oxide and a rare earth-doped ceria to a metal substrate; b) prefiring the anode layer under non-reducing conditions to form a composite; c) firing the composite in a reducing atmosphere to form a sintered cermet; d) providing an electrolyte; and e) providing a cathode; wherein the reducing atmosphere comprises an oxygen source, a metal supported solid oxide fuel cell formed during this process, fuel cell stacks and the use of these fuel cells..
Ceres Intellectual Property Company Limited
03/05/15
20150064594
 Heater and supporting structure thereof patent thumbnailnew patent Heater and supporting structure thereof
A heater includes a heater housing with a support plate secured to one end. A fuel cell stack assembly is disposed within the heater housing and includes a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent.
Delphi Technologies, Inc.
03/05/15
20150064593
 Heater patent thumbnailnew patent Heater
A heater includes a fuel cell stack assembly disposed within a heater housing and includes a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent. A combustor disposed within the heater housing receives an anode exhaust and a cathode exhaust from the fuel cell stack assembly and combusts a mixture of the anode exhaust and the cathode exhaust to produce a heated combustor exhaust.
Delphi Technologies, Inc.
03/05/15
20150064592
 Heater and  operating patent thumbnailnew patent Heater and operating
A heater includes a heater housing extending along a heater axis. A fuel cell stack assembly is disposed within the heater housing and includes a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent.
Delphi Technologies, Inc.
03/05/15
20150064591
 Heater and  operating patent thumbnailnew patent Heater and operating
A heater includes a heater housing extending along a heater axis. A fuel cell stack assembly is disposed within the heater housing and includes a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent.
Delphi Technologies, Inc.
03/05/15
20150064590
 Seal plate and fuel cell stack using the same patent thumbnailnew patent Seal plate and fuel cell stack using the same
A fuel cell stack includes at least two cell modules adjacent to each other, the at least two cell modules each being formed by stacking a plurality of fuel cells into an integrated unit and a seal plate interposed in a cooling flow channel defined between separators of the at least two cell modules, the cooling flow channel configured to allow a cooling fluid to flow therethrough. The seal plate includes a manifold portion in which a plurality of manifold holes are formed to allow two power-generation gases to flow separately through the plurality of manifold holes and through the plurality of fuel cells and a seal member provided along a peripheral portion of each of the plurality of manifold holes to provide sealing for a corresponding one of the two power-generation gases flowing through the manifold hole..
Nissan Motor Co., Ltd.
03/05/15
20150064588
 Apparatus and  controlling fuel cell system patent thumbnailnew patent Apparatus and controlling fuel cell system
Disclosed herein is an apparatus for controlling a fuel cell system, including: a plurality of stack state detecting units for detecting respective states of a plurality of fuel cell stacks; a switching unit for connecting at least parts of the plurality of fuel cell stacks to each other in series or in parallel; and a control unit for detecting at least one degraded stack based on the states of the stacks detected by the plurality of stack state detecting units, and forming at least one degraded stack unit including the detected at least one degraded stack by controlling the operation of the switching unit, so the apparatus can quickly and easily connect the stacks to each other in series, in parallel or in series-parallel using cheap electric switches instead of using a plurality of power conditioning system (pcs).. .
Sk Innovation Co., Ltd.
03/05/15
20150064587
 Apparatus and  controlling fuel cell system using sub-power conditioning system patent thumbnailnew patent Apparatus and controlling fuel cell system using sub-power conditioning system
Disclosed herein is an apparatus and method for controlling a fuel cell system. The apparatus includes a main power conditioning system which supplies output of normal stacks among a plurality of fuel cell stacks to a load, a sub-power conditioning system which supplies output of one or more deteriorated stacks among the fuel cell stacks to a load, a switching unit which changes a target to which output of each of the fuel cell stacks is connected, and a control unit which senses conditions of each of the fuel cell stacks and controls the switching unit.
Sk Innovation Co., Ltd.
03/05/15
20150064509
new patent

Fuel cell start up method


A fuel cell module is configured or operated, or both, such that after a shut down procedure a fuel cell stack is discharged and has its cathode electrodes at least partially blanketed with nitrogen during at least some periods of time. If the fuel cell module is restarted in this condition, electrochemical reactions are limited and do not quickly re-charge the fuel cell stack.
Hydrogenics Corporation
03/05/15
20150062771
new patent

Apparatus for removing static electricity of fuel cell stack manufacturing device


An apparatus for removing static electricity of a fuel cell stack manufacturing device, includes a cartridge in which a plurality of membrane electrode assemblies (meas) are received, an air nozzle portion disposed in an upper portion of the cartridge and including an air flow channel for air movement, a plurality of nozzle holes defined along an inner side of the air nozzle portion, which faces the meas disposed in the cartridge, to communicate with the air flow channel, and an air inlet portion configured to be supplied with ionized air from the outside to deliver the ionized air to the air flow channel of the air nozzle portion.. .
Hyundai Motor Company
03/05/15
20150060061
new patent

Heater and operating


A heater includes a heater housing with a fuel cell stack assembly disposed therein. The fuel cell stack assembly includes a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent.
Delphi Technologies, Inc.
02/26/15
20150056531

Fuel cell system


A fuel cell system includes a fuel cell stack configured to generate power according to a load, a fuel tank configured to store fuel gas, a pressure regulating valve configured to regulate a pressure of the fuel gas supplied from the fuel tank to the fuel cell stack, a purge valve configured to purge the fuel gas discharged from the fuel cell stack and a controller for controlling the system. The controller includes a pulsating unit configured to cause a fuel gas pressure of the fuel cell stack to pulsate, and a pressure increasing rate setting unit configured to set a pressure increasing rate of the pulsation of the fuel gas pressure according to an operating state..
Nissan Motor Co., Ltd.
02/26/15
20150053491

Thermal management system for fuel cell, fuel cell system and vehicle equipped with fuel cell system


The invention provides a thermal management system for a fuel cell, a fuel cell system and a vehicle equipped with the fuel cell system. The thermal management system for a fuel cell comprises: a cooling system (100) for recovering the waste heat produced by the fuel cell system, a heat supply system (15) connected with the cooling system (100) to supply heat using the waste heat recovered by the cooling system (100).
Dongfang Electric Corporation
02/19/15
20150050577

Fuel cell stack and seal plate used for the same


A fuel cell stack includes a plurality of cell modules each formed by stacking a plurality of fuel cells, each of the plurality of fuel cells having a membrane electrode assembly having an insulating member at an outer periphery portion thereof and paired separators sandwiching the membrane electrode assembly, and by attaching the insulating members of adjacent fuel cells together, and a seal plate interposed between the stacked cell modules. The seal plate includes a plurality of manifold holes from which two power-generation gases flow separately through the plurality of fuel cells, and a first seal member provided along a peripheral portion of each of the plurality of manifold holes to seal a corresponding one of the two power-generation gases flowing through the manifold hole..
Nissan Motor Co., Ltd.
02/12/15
20150044599

Fuel cell system


A fuel cell system includes a fuel cell stack, a cathode supply flow passage which is connected to the fuel cell stack and through which cathode gas flows, a cathode off-gas flow passage which is connected to the fuel cell stack and discharges cathode off-gas, a bypass flow passage which is branched off from the cathode supply flow passage and through which a part of the cathode gas flows while bypassing the fuel cell stack, a bypass valve configured to regulate a bypass flow rate in the bypass flow passage and include an atmosphere communication hole, and an anode off-gas flow passage which is connected to the fuel cell stack and discharges anode off-gas. The anode off-gas flow passage joins the bypass flow passage at a side downstream of the cathode off-gas flow passage or the bypass valve, and the bypass valve is formed with a clearance configured to leak a predetermined quantity of gas even in a fully closed state..
Nissan Motor Co., Ltd.
02/12/15
20150044592

Fuel cell stack


In a fuel cell stack, voltage detecting terminals are disposed on a second separator and a third separator of a power generation unit, whereas a voltage detecting terminal is not disposed on a first separator of the power generation unit. Among terminal plates of the fuel cell stack, another voltage detecting terminal is disposed only on the terminal plate that is in contact with the first separator..
Honda Motor Co., Ltd.
02/12/15
20150044590

Method for operating a fuel cell stack for a fuel cell system, and fuel cell system


A method for operating a fuel cell stack (10) for a fuel cell system, in particular of a vehicle, in which by reversing the flow direction (14, 16) of a coolant during a cooling operation, the coolant in the fuel cell stack (10) is initially conveyed in a first direction (14). The coolant is subsequently conveyed in a second direction (16) which is at least substantially opposite to the first direction (14).
Daimler Ag
02/12/15
20150044587

Solid oxide fuel cell system


To provide a solid oxide fuel cell system capable of avoiding the reduction of air electrodes. The present invention is a fuel cell system having: a fuel cell module, a fuel supply apparatus, a water supply apparatus, an air supply apparatus, a reformer, and a control section for controlling the extraction of power from a fuel cell module, whereby the controller includes a shutdown stop circuit for executing a shutdown stop when the fuel cell stack is above the oxidation suppression temperature, and after execution of a shutdown stop, during a period when pressure on the fuel electrode side is sufficiently higher than pressure on the air electrode side, and no reverse flow of air to the fuel electrode side is occurring, a temperature drop operation is executed whereby high temperature air remaining on the air electrode side is discharged..
Toto Ltd.
02/05/15
20150037707

Fuel cell stack


A fuel cell stack includes a stacked body, a first terminal plate, a second terminal plate, a first resin end plate, and a second resin end plate. The stacked body has a first end and a second end opposite to the first end in a stacking direction.
Honda Motor Co., Ltd.
02/05/15
20150037706

Single fuel cell, fuel cell stack, and manufacturing fuel cell stack


A single fuel cell, a plurality of which are to be stacked to form a fuel cell stack, includes a membrane electrode assembly having a structure including paired electrode layers and an electrolyte membrane held between the paired electrode layers, paired separators each forming a gas passage between the separator and the membrane electrode assembly, and a displacement absorber having a conductive property and interposed between one separator of the single fuel cell and an adjacent-side separator of another single fuel cell to be stacked adjacent to the single fuel cell. The displacement absorber is connected to at least any one of the separators..
Nissan Motor Co., Ltd.
02/05/15
20150037705

Fuel cell stack


A fuel cell stack includes cell units stacked on one another and each including a membrane electrode assembly and two separators defining gas passages on both sides of the membrane electrode assembly, a cooling fluid passage for flowing a cooling fluid provided between the separators of each adjacent two of the cell units, and a displacement absorber provided in the cooling fluid passage. The displacement absorber includes elastic protrusions provided in an array and configured to elastically absorb a displacement of the cell units in a stack direction, and flow-spread preventing protrusions provided in an array and configured to prevent the cooling fluid from flowing out of an active area..
Nissan Motor Co., Ltd.
01/29/15
20150030960

Seal for solid polymer electrolyte fuel cell


In solid polymer fuel cells employing framed membrane electrode assemblies, a conventional anode compliant seal is employed in combination with a cathode non-compliant seal to provide for a thinner fuel cell design, particularly in the context of a fuel cell stack. This approach is particularly suitable for fuel cells operating at low pressure..
Ballard Power Systems Inc.
01/29/15
20150030953

Fuel cell system


A fuel cell system includes a fuel cell stack, a compressor, a cathode flow passage, a bypass flow passage branching from the cathode flow passage, thereby bypassing the stack, a bypass valve adjusting a bypass flow rate, a stack flow rate sensor detecting a flow rate to the stack, and a compressor flow rate sensor detecting a flow rate into the compressor. A flow rate for the stack depending on a state of a fuel cell and a flow rate the compressor controls depending on a requirement different from that of the stack are calculated.
Nissan Motor Co., Ltd.
01/29/15
20150030951

Fuel cell assembly


A fuel cell assembly comprising an enclosure having a fuel cell stack mounted therein. The fuel cell stack has an inlet face for receiving coolant/oxidant fluid and an outlet face for expelling said coolant/oxidant fluid.
Intelligent Energy Limited
01/29/15
20150030950

Fuel cell assembly


A fuel cell assembly comprising an enclosure having a fuel cell stack mounted therein, and an inlet opening into the enclosure. The fuel cell stack having an inlet face for receiving coolant/oxidant fluid.
Intelligent Energy Limited
01/29/15
20150030949

Fuel cell


The fuel cell includes a fuel cell stack in which a plurality of planar power generation cells are stacked in a thickness direction thereof. The fuel cell also includes a heat exchanger provided between the two adjacent power generation cells in the stacking direction and in contact with the power generation cells, and including an internal first flow path that passes the oxidant gas or fuel gas supplied from outside.
Ngk Spark Plug Co., Ltd.
01/29/15
20150030947

Solid oxide fuel cell system


A solid oxide fuel cell system (10) comprises a solid oxide fuel cell stack (12) and a gas turbine engine (14), a compressor (24) of the gas turbine engine (14) is arranged to supply oxidant to the cathodes (22) of the solid oxide fuel cell stack (12) and a fuel supply (32) is arranged to supply fuel to the anodes (20) of the solid oxide fuel cell stack (12). A portion of the unused oxidant from the cathodes (22) of the solid oxide fuel cell stack (12) is supplied back to the cathodes (22) of the solid oxide fuel cell stack (12).
Rolls-royce Fuel Cell Systems Limited
01/29/15
20150030945

Fuel cell system and its use


A fuel cell system is provided, including a fuel cell stack with a plurality of cathodes (30) and anodes (34), wherein an oxidizing gas containing oxygen is feedable to the stack on the cathode side and a fuel gas is feedable to the stack on the anode side, and a reformer for generating the fuel gas from a fuel. The fuel cell stack includes a catalytically active material (42) which is arranged in the anode-side regions such that the fuel gas flows through the material upstream of the anode (34), wherein the catalytically active material catalyzes the reaction of carbon monoxide and water to carbon dioxide and hydrogen..
Ceramtec Gmbh
01/29/15
20150027796

Fuel cell vehicle


A fuel cell vehicle is provided with a fuel cell stack and a vehicle body frame for mounting the fuel cell stack in a front box. The fuel cell stack and a frame member have portions overlapping with each other in a vehicle width direction in a plan view of the vehicle.
Honda Motor Co., Ltd.
01/22/15
20150024297

Apparatus and methods for mixing reformable fuels and an oxygen-containing gas and/or steam


The present teachings provide apparatus and methods for mixing a reformable fuel and/or steam with an oxygen-containing gas and/or steam to provide a gaseous reforming reaction mixture suitable for reforming with a reformer and/or a fuel cell stack of a fuel cell unit and/or fuel cell system.. .
01/22/15
20150024294

Fuel cell device and operating a fuel cell device


In order to provide a fuel cell device, including a fuel cell stack that includes electrochemically active cathode/electrolyte/anode units, and a reformer for producing a fuel gas for the fuel cell stack from a starting fuel, wherein the fuel cell stack is configured to have the fuel gas produced by the reformer and an oxidizing agent supplied to it, in which the thermomechanical loads in the heating phase are lessened and/or it is made possible to shorten the heating phase, it is proposed that the fuel cell device should include at least one heat transfer device which is configured to have the fuel gas and the oxidizing agent flow through it, upstream of the cathode/electrolyte/anode units of the fuel cell stack.. .
Elringklinger Ag
01/08/15
20150010844

Fuel cell stack


A fuel cell stack is formed from a plurality of stacked fuel cell units and at least one stack end element. The stacked fuel cell units being surrounded by a housing.
Daimler Ag
01/08/15
20150010843

Membrane-electrode assembly for fuel cell and fuel cell stack including same


A membrane-electrode assembly for a fuel cell that includes a polymer electrolyte membrane is disclosed. The membrane-electrode assembly for a fuel cell further includes an anode disposed on one side of the polymer electrolyte membrane and including an anode gas diffusion layer and a cathode disposed on the other side of the polymer electrolyte membrane and including a cathode gas diffusion layer.
Samsung Sdi Co., Ltd.
01/08/15
20150010841

Fuel cell vehicle


A fuel cell vehicle includes a fuel cell stack, a front side panel, and a fuel gas device. The fuel cell stack includes a plurality of fuel cells, one end and another end, a first end plate, and a second end plate.
Honda Motor Co., Ltd.
01/01/15
20150004519

Solid oxide fuel cell having a dense barrier layer


A solid oxide fuel cell with a dense barrier layer formed at or near the outer surface of the top and/or bottom electrode layers in a fuel cell stack. The dense barrier layer (dbl) acts as a seal to prevent gas in the electrode layer (either air in a cathode layer or fuel gas in an anode layer) from leaking out of the stack though the outer surface of the outermost electrode layers.
Saint-gobain Ceramics & Plastics, Inc.
01/01/15
20150004516

Separator for fuel cell, manufacturing method thereof, and fuel cell having such a separator


A lamellar structure graphite foil is used as a material for a separator for a fuel cell, and a hydrophobic layer is formed by impregnation on flow-field channels of the graphite foil. Such a separator is manufactured by forming the flow field channel by etching the graphite foil formed with the mask pattern thereon and forming a hydrophobic layer by impregnation.
Fuelcell Power, Inc.
01/01/15
20150004515

Avoiding fuel starvation of anode end fuel cell


The fuel flow channels (20a) of the end fuel cell (9a) at the anode end (34) of a fuel cell stack are significantly deeper than the fuel flow field channels (20) of the remaining fuel cells (9) in the stack, whereby fuel starvation caused by ice in the fuel flow channels is avoided during cold startup. The fuel flow field channels of the end cell (9) at the anode end of the stack is between about 0.15 mm and about 1.5 mm deeper than the fuel flow field channels in the remaining fuel cells of the stack, or between about 35% and about 65% deeper than the fuel flow field channels in the remaining fuel cells of the stack..
Ballard Power Systems Inc.
01/01/15
20150004509

Line device for a fuel cell, fuel cell and fuel cell stack


A line device (1) for a fuel cell (10), having at least one feed section (2) with a feed opening (4), and a removal section (3) with a removal opening (5), wherein the feed section (2) is designed for supplying a fluid to a first side (12) of an active surface (11) of the fuel cell (10) and the removal section (3) is designed for removing the fluid from a second side (13) of the active surface (11) of the fuel cell (10), and the fluid can flow along at least two flow paths (20, 21, 22) from the feed opening (4) through the active surface (11) to the removal opening (5) for the fluid, wherein the feed section (2).. .
Robert Bosch Gmbh
01/01/15
20150004502

Air intake device for fuel cell vehicle


Dust and chemical substances in the air are removed by a dust/chemical substance filter (3) provided on the fuel cell stack (11) side within the intake duct (2). Furthermore, air and water are primarily separated by a water filter (4) provided in the intake duct (2) upstream by a prescribed distance in the air flow direction from the dust/chemical substance filter (3).
12/25/14
20140377675

Centrifugal water separator for a fuel cell system


A fuel cell system includes a fuel cell stack in fluid communication with a separator. The separator has a first portion and a second portion forming a chamber.
Ford Global Technologies, Llc
12/18/14
20140370411

Fuel cell header wedge


A fuel cell system may include a fuel cell stack having a header and active area in fluid communication with the header. The fuel cell system may also include a wedge disposed within the header and configured to alter the cross-sectional area of the header along the length of the stack such that, during operation of the stack, a flow velocity of gas through the active area is generally constant..
Ford Motor Company
12/18/14
20140370407

Fuel cell stack discrete header


A fuel cell system comprises a main body including a first partial header and a fastening point. The main body is adapted to be coupled to a plurality of plates forming a fuel cell stack, allowing a single plate design to be used for multiple fuel cell stack lengths having a large differential of energy requirements, affording a durable alignment mechanism for the fuel cell stack, and providing integration flexibility for components and configurations of the fuel cell system..
Gm Global Technology Operations Llc
12/18/14
20140367182

Fuel cell vehicle


In this fuel cell vehicle, a radiator, a protruding region of a casing, and a connecting bar of a fuel cell stack are arranged in a front box in the listed order from the front toward the rear in the direction in which the vehicle travels. A first end plate and a second end plate are fixed directly on a frame member via mounting members, and the frame member is fixed to a vehicle body frame.
Honda Motor Co., Ltd.
12/04/14
20140356763

Repeating unit for a fuel cell stack


A repeating unit (10) for a fuel cell stack comprises a gas conducting region (8) for conducting a first gas (12) to and along an active surface (14). A barrier (16) is located in the gas conducting region.
12/04/14
20140356753

Fuel cell stack


A fuel cell stack includes a plurality of stacked fuel cell units and at least one stack end element that are clamped a clamping device. The clamped fuel cell units are surrounded by a housing.
12/04/14
20140356752

Fuel cell assembly and making same


A method of fabricating a fuel cell component for use with or as part of a fuel cell in a fuel cell stack, the method comprising: providing a fuel cell component, providing a deposition assembly for depositing loading material particles onto the fuel cell component, and actuating the deposition assembly to cause the deposition assembly to deposit said loading material particles onto said fuel cell component.. .
12/04/14
20140356747

Spliced bipolar plates for fuel cells and fuel cell stacks comprising the same


Spliced bipolar plates for fuel cells are provided. The spliced bipolar plate includes a supporting plate and a splice plate.
12/04/14
20140356746

Fuel cell system mounted on a vehicle


A fuel cell system mounted on a vehicle is provided. During intermittent operation of the fuel cell system, if a cell voltage vc of a fuel cell stack becomes lower than a predetermined threshold voltage v′, an air compressor is operated to supply air to the fuel cell stack at a first predetermined flow rate, and when the cell voltage vc reaches and stabilizes at a predetermined target voltage v″, air is supplied to the fuel cell stack at a second predetermined flow rate that is higher than the first predetermined flow rate for a certain period of time..
12/04/14
20140354290

Measurement device for testing a fuel cell stack


A measurement device for measuring voltages along a linear array of voltage sources, such as a fuel cell stack, includes at least one movable voltage probe that measures voltage transitions along an array element. The measured voltage is used to determine a distance of travel of the at least one voltage probe along the fuel cell stack from the speed of the probe and the timing of the transitions..
11/27/14
20140349210

Fuel cell stack


An objective of the present invention is to allow desirably installing a fuel cell stack in an installation site with a simple and compact configuration. The fuel cell stack comprises an end plate.
11/27/14
20140349209

Fuel cell stack


A fuel cell stack has a first block having a first number of cells, a first fuel supply channel for supplying fuel gas to the first block, a collecting channel for collecting fuel gas which has passed through the first block, a second block having a second number of cells, the second number being smaller than the first number, a second fuel supply channel for supplying the second block with fuel gas which has been collected into the collecting channel, and a discharge channel for discharging fuel gas which has passed through the second block. A throttling section smaller in channel diameter than first and second fuel gas trunk channels, first and second branch channels, the collecting channel, and the discharge channel is provided downstream of the collecting channel and upstream of the second fuel supply channel..
11/27/14
20140349208

Fuel cell system


In a fuel cell system including a load and a fuel cell stack connected to the load and supplying an anode gas and a cathode gas to the fuel cell stack to generate power according to the load, the fuel cell system includes, a pressure setting unit configured to set a pressure of the anode gas higher when the load is high as compared with when the load is low, a stagnation point determination unit configured to determine, according to a state of power generation of the fuel cell stack, whether or not a nitrogen stagnation point is left in a reaction flow path within the fuel cell stack, and an operation control unit configured to performs an operation while preventing the pressure of the anode gas from being lowered when a required load is lowered in a state where the nitrogen stagnation point is left.. .
11/27/14
20140349205

Fuel cell stack compression system having integrated vehicle mounts


A fuel cell system having compression retention features that functions dually to provide compression retention and to provide structural sealing and vehicle mounting capability, eliminating the bulk of an additional structural enclosure while retaining the balance of plant simplicity associated with the use of structural enclosures. The fuel cell system has fuel cells disposed between a dry end unit plate and a wet end unit plate and a compression retention system with a pair of opposing end caps and a pair of opposing side panels such that wet end unit plate is fixedly secured to the opposing end caps and the dry end unit plate is adjustably secured to the opposing end caps.
11/20/14
20140342267

Corrosion resistant barrier layer for a solid oxide fuel cell stack and making thereof


A method of forming diffusion barrier layer includes providing an interconnect for a fuel cell stack, forming a glass barrier precursor layer over a mn and/or co containing electrically conductive contact layer on the interconnect, and heating the barrier precursor layer to precipitate crystals in the barrier precursor layer to convert the barrier precursor layer to a glass ceramic barrier layer.. .
11/20/14
20140342264

Flow field plate for improved coolant flow


Bipolar plate assemblies are disclosed in which the transition fuel channels are offset from the transition oxidant channels in the transition regions on the active sides of the plates. This configuration allows for a reduced pressure drop in the coolant flow in the transition regions on the inactive, coolant side of the plates and thereby improves coolant flow sharing.
11/20/14
20140342263

Planar solid oxide fuel cell stack and its interconnect thereof


A planar solid oxide fuel cell stack which can expand in both the vertical and horizontal directions is disclosed. The planar solid oxide fuel cell stack comprises an interconnect which consists of an interconnect body, a first flowing area and a second flowing area, wherein the first and the second flowing area are disposed on opposite side of the interconnect body, and have one gas inlet and two gas outlets, respectively.
11/20/14
20140342262

Fuel cell


The present invention relates to a hydrogen, methanol, or ethanol fuel cell comprising an anode electrocatalyst comprising palladium and iridium, and relates to a fuel cell stack comprising said fuel cell. The invention also relates to a method of making a fuel cell.
11/20/14
20140342258

Fuel cell startup fast freeze startup


A method for starting a cold or frozen fuel cell stack as efficiently and quickly as possible in a vehicle application is based upon a state of charge of a first power source such as a high voltage battery. Power flow between the first power source and fuel cell system is coordinated in conjunction with a specific load schedule and parallel control algorithms to minimize the start time required and optimize system warm-up..
11/20/14
20140342252

Fuel cell mechanical components


A modular fuel cell system includes a base, at least four power modules arranged in a row on the base, and a fuel processing module and power conditioning module arranged on at least one end of the row on the base. Each power module includes a separate cabinet which contains at least one fuel cell stack located in a hot box.
11/13/14
20140335444

Fuel cell separator with gasket and manufacturing the same


The present invention provides a fuel cell separator with a gasket manufactured by integrally forming a gasket on one side of a separator; independently injection molding a frame gasket on a frame such that a first airtight portion covers the entire surface of the frame to maintain the shape of the frame gasket and a second airtight portion projects upward and downward from both ends of the first airtight portion; and bringing the first airtight portion of the frame gasket into contact with the other side of the separator with the gasket formed on one side thereof. To create a fuel cell stack in certain embodiments, the invention stacks the second airtight portion of the frame gasket on another second airtight portion of an adjacent unit cell with a membrane-electrode assembly interposed therebetween..
11/13/14
20140335434

Fuel cell vehicle


A fuel cell vehicle is provided which includes an exterior heat exchanger for cooling and the exterior heat exchanger for heating are arranged at a front part of the vehicle, and the exterior heat exchanger for heating is heated by the outside air used to cool the air-cooling type fuel cell stack, an intake duct and an exhaust duct are mounted at the front side and the rear side of the air-cooling type fuel cell stack, respectively, the intake duct and the exterior heat exchanger for cooling are arranged at a front side part of the vehicle so as not to overlap with each other when the vehicle is seen from the front, and the exterior heat exchanger for heating is arranged at the rear of the exhaust duct.. .
11/13/14
20140335432

Systems and methods for estimating fuel cell states


Apparatus, methods, and systems for estimating hydrogen concentration and/or pressure in an anode compartment of a fuel cell stack in a fuel cell vehicle. In some implementations, the estimates are based on a correlation between a transient dip in voltage in response to an anode to cathode bleed event and a concentration of hydrogen in the anode compartment of a fuel cell stack.
11/13/14
20140335431

Fuel cell seal retainer assembly


An exemplary fuel cell manifold seal retainer assembly includes a bracket and a retainer. The bracket is mountable to a manifold of the fuel cell stack.
11/13/14
20140335430

Fuel cell system and operating method therefor


A fuel cell system and method that enables warm-up power generation corresponding to the residual water volume in the fuel cell stack without using auxiliary devices for measuring the residual water volume in the fuel cell stack. A controller computes total generated electrical energy q by integrating of the generated current detected by current sensor during the period from start-up to shutting down of the fuel cell system, and stores the result in total generated electrical energy storage part.
11/13/14
20140332145

Methods and devices for printing seals for fuel cell stacks


Various embodiments include a fuel cell stack seal application method including the step of applying a seal paste to a fuel cell, placing the fuel cell in a fuel cell stack, and thermally treating the fuel cell stack to set the seal paste into a seal. Further embodiments include applying the seal paste to an interconnect using stencil printing..
11/06/14
20140329168

Hybrid bipolar plate assembly for fuel cells


Hybrid bipolar plate assemblies comprising a metal subassembly and a carbonaceous flow field insert can be used to provide for greater current densities from smaller volume fuel cell stacks. In particular, such hybrid bipolar plate assemblies allow for the combination of preferred oxidant channel structures, which can be formed in carbonaceous oxidant flow field inserts, with preferred smaller bipolar plate assembly thicknesses, which are possible with the use of metal plate subassemblies..
11/06/14
20140329166

Method of controlling thickness of form-in-place sealing for pem fuel cell stacks


A sealed assembly is made using sealant including a deformable spacer to control thickness without adversely impacting elasticity and sealing force. Deformable spacers (e.g., elastomer, polyolefin, etc.) are mixed with an elastomeric precursor material and dispensed onto an assembly component, such as a fuel cell bipolar plate, and the remaining component(s) are assembled by pressing against the deformable spacer to ensure a defined seal thickness.
11/06/14
20140329159

Solid-oxide fuel cell system, and start-up control method therefor


In the sofc system, the fuel gas flow rate at the time of the start of start-up is set to the maximum fuel gas flow rate that is less than or equal to 1.3 times the maximum fuel gas flow rate fgmax at the time of the rated power generation, the fuel gas flow rate f2 until the temperature t of the fuel cell stack reaches t1, at which the reduction of the oxidized ni in the fuel cell stack is performed, is set to be less than or equal to f1, and thereafter, until the start of the power generation, fuel gas flow rate f3 is further reduced from f2, and the average fuel gas flow rate fave is set to be equal to or greater than 0.6 times the average fuel gas flow rate fgave at the time of the rated power generation.. .
11/06/14
20140329156

Heated ejector assembly for a fuel cell


A fuel cell system includes a fuel cell stack, an ejector in fluid communication with the fuel cell stack and having a converging-diverging (cd) nozzle with a hydrogen feed nozzle and a recirculation conduit upstream of a throat of the cd nozzle, and a thermal source configured to heat the ejector. A hydrogen supply assembly for a fuel cell system includes an ejector having a converging-diverging (cd) nozzle and a mixing chamber upstream of the cd nozzle.


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

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