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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


Fuel cell stack

Fuel cell stack

Fuel cell assembly and method of making same

Fuel cell assembly and method of making same

Fuel cell assembly and method of making same

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

Date/App# patent app List of recent Fuel Cell Stack-related patents
12/04/14
20140356763
 Repeating unit for a fuel cell stack patent thumbnailRepeating 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 patent thumbnailFuel 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 method of making same patent thumbnailFuel cell assembly and method of 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 patent thumbnailSpliced 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 patent thumbnailFuel 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 patent thumbnailMeasurement 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 patent thumbnailFuel 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 patent thumbnailFuel 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 patent thumbnailFuel 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 patent thumbnailFuel 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 method of 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 method for 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 method for 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.
10/30/14
20140322626
Fuel cell stack
In a fuel cell stack, fuel cells are stacked together in a stacking direction, and the stacked fuel cells are placed in a casing. An upper side panel of the casing includes an outer plate and an inner plate which are joined together.
10/30/14
20140322625
Systems and methods to monitor and control a flow of air within a fuel cell stack
Disclosed herein are systems and methods for monitoring and controlling a flow of air within a fuel cell stack. The fuel cell stack may include an air supply path to conduct a flow of air through the fuel cell.
10/30/14
20140322620
Compact safety type fuel cell system
This invention provides a compact safety type fuel cell system, including an enclosure and the electronic control system, electric isolation board, gas isolation board, fuel cell stack system, hydrogen delivery device installed in the enclosure. The electric isolation board divides the inside of the enclosure into electronic control system space and fuel cell stack working space, the gas isolation board divides the fuel cell stack working space into hydrogen side space and air inlet space, the air inlet space and the air inlet port of the fuel cell stack system are connected, the fuel cell stack system enclosure connects with the gas isolation board hermetically.
10/23/14
20140315114
Method and regulation apparatus for operating a fuel cell or a fuel cell stack
Disclosed is method of operating a fuel cell which can output an electrical maximum power dependent on the operating temperature for a given fuel gas flow, and which exhibits aging in dependence on the operating duration which brings about an increase of the electrical internal resistance with progressive operating duration. In the disclosed method, the starting value (t0) of the operating temperature for a new fuel cell or for a new fuel cell stack is typically smaller than or equal to the operating temperature, at which the electrical maximum power is achieved and the fuel cell or the fuel cell stack is regulated such that the decrease of the output electrical power as a consequence of aging is partly or completely compensated in that the operating temperature (t) of the fuel cell or of the fuel cell stack is increased with progressive aging..
10/23/14
20140315112
Solid-oxide fuel cell system, and method for starting same
During system start-up in s11, an atr process begins, and the hydrogen-enriched fuel gas is generated by the autothermal reaction. In s12, a cell temperature t is compared to a minimum reduction start temperature t1 of the cell support and, in the case of t≧t1, the process proceeds to s13.
10/23/14
20140315111
Solid-oxide fuel-cell system and startup-control method for same
An object of the invention is to improve durability of a sofc system and secure favorable power generation performance during the actual useful service period of the system. In the sofc system, a fuel gas flow rate to a fuel cell stack is set at f1 at the time of start-up.
10/23/14
20140315108
Hydrogen fuel cell and system thereof, and method for dynamic variable humidity control
Disclosed are a hydrogen fuel cell and system thereof, and a method for dynamic variable humidity control; the hydrogen fuel cell includes a fuel cell stack assembly and an outside plate gas distribution device; the fuel cell stack assembly is encapsulated with a hard housing; the outside plate gas distribution device is fixed on the hard housing; the outside plate gas distribution device includes an outside plate gas distribution device for working gas flow and a heat dissipation gas distribution device; the outside plate gas distribution device for working gas flow is provided with a fan mount for connecting with a working fan, and the outside plate gas distribution device for working gas flow extends into the inner cavity of the housing from outside of the housing; the heat dissipation gas distribution device includes a heat dissipation channel set outside the housing and interconnected with the inner cavity of the housing, and a heat dissipation port set on the housing; and the heat dissipation channel is provided with a heat dissipation fan mount for connecting with a heat dissipation fan. The hydrogen fuel cell of the present invention improves power generation efficiency, reduces costs and increases lifetime..
10/16/14
20140308599
Gasket device for a fuel cell stack
Provided is a gasket device for a fuel cell stack in which gaskets of different materials are integrally molded in an anode separator (or an anode gas diffusion layer) and a cathode separator (or a cathode gas diffusion layer) to provide sealing stability at low temperatures and long-term stability at high temperatures in a fuel cell integrated with a conventional single material and evenly securing the required physical properties of the fuel cell stack gasket.. .
10/16/14
20140308596
Method and device for stopping solid-oxide fuel cell system
A sofc system houses a reformer and a fuel cell stack in a module case. Each cell forming the fuel cell stack is made of a porous material having a composition containing at least nickel metal, includes a cell support having a gas passage through which the fuel gas from the reformer flows from an lower end to an upper end on the inside thereof, and the excessive fuel gas is combusted at the upper end of the gas passage.
10/16/14
20140305596
Device for manufacturing fuel cell stack components
An apparatus for manufacturing fuel cell stack components integrally bond gas diffusion layers to both surfaces of a membrane-electrode assembly (mea) basic material in which a membrane-electrode assembly has sub gaskets. The apparatus includes a frame, an upper die disposed on the frame to be movable in a vertical direction, and a lower die disposed on the frame, and configured to support the mea basic material and the gas diffusion layers at a lower side of the upper die.
10/09/14
20140302415
Apparatus and method for heating a fuel cell stack
An apparatus for heating a fuel cell stack in a cold start mode is provided. The apparatus comprises a fuel cell stack, a power converter, and a controller.
10/09/14
20140302410
High efficiency fuel cell system with anode gas chemical recuperation and carbon capture
A method of providing anode gas exhaust (38, 39) from a fuel cell stack (36) and carbon dioxide (54) capture by feeding reformed fuel and air into a fuel cell stack (36) where gas exhaust (38, 39) is fed to a series of oxidation/reduction beds (44, 46) to provide exit streams a) of h2o and co2 (41′) which is fed to a condenser (52) to recover co2 (54), and b) h2o and co (48) which is recirculated to the fuel cell stack (36).. .
10/02/14
20140295327
Rechargeable fuel cell
A device and method of forming a power generator includes a container, a fuel cell stack within the container, a metal hydride hydrogen producing fuel within the container, wherein the fuel cell stack is sandwiched between the container and an anode support surrounding the fuel and in close thermal contact with the fuel. The fuel cell stack has a cathode electrode for exposure to oxygen and an anode electrode for exposure to hydrogen.
10/02/14
20140295322
Material fuel cell separator, fuel cell separator using same, fuel cell stack, and method of producing fuel cell separator material
A material for fuel cell separator, wherein a surface layer 6 containing au and cr is formed on a surface of a ti base 2, and an intermediate layer 2a containing ti, o, cr, and less than 20 atomic % of au is present between the ti base and the surface layer, a thickness of an area containing 65 atomic % or more of au being 1.5 nm or more, a maximum concentration of au being 80 atomic % or more, a coating amount of au being 9000 to 40000 ng/cm2, a ratio represented by (au coating amount)/(cr coating amount) being 10 or more, a coating amount of cr being 200 ng/cm2 or more, and in the intermediate layer having an area containing 10% or more of ti, 10% or more of o and 20% or more of cr being 1 nm or more.. .
10/02/14
20140295313
Sanbornite-based glass-ceramic seal for high-temperature applications
A glass-ceramic seal for ionic transport devices such as solid oxide fuel cell stacks or oxygen transport membrane applications. Preferred embodiments of the present invention comprise glass-ceramic sealant material based on a barium-aluminum-silica system, which exhibits a high enough coefficient of thermal expansion to closely match the overall cte of a sofc cell/stack (preferably from about 11 to 12.8 ppm/° c.), good sintering behavior, and a very low residual glass phase (which contributes to the stability of the seal)..
10/02/14
20140295312
Systems and methods for configuring a fuel cell having lower coolant path isolation resistance
System and methods relating to a configuration for a fuel cell system having lower coolant path isolation resistances are disclosed. In certain embodiments, the fuel cell system may include a first fuel cell substack comprising a first plurality of cells.
10/02/14
20140295308
Fuel cell stack
A fuel cell stack (1) includes a plurality of stacked power generation cells (3), a heat exchange unit (7) provided between adjacent two of the power generation cells, a fuel gas supply path arranged to supply the power generation cells with a fuel gas, and an oxidant gas supply path (3, 7, 33, 34, 38) arranged to supply the power generation cells with an oxidant gas, wherein the fuel gas supply path includes in series a first path (7, 31) passing through the heat exchange unit (7), a second path (3, 32, 35, 37) passing through some of the plurality of power generation cells (3) in parallel, and a third path (3, 32, 36) passing through the other power generation cells in parallel.. .
10/02/14
20140295305
Fuel cell vehicle and moving body
A data signal accurately reflecting the actual state of a storage vessel is sent to a station side. A fuel cell system (1) includes a hydrogen supply line (32) that connects a tank main body (311) and a fuel cell stack (2), and a main stop valve provided to the hydrogen supply line (32).
10/02/14
20140292084
Method of controlling the operation of a hybrid system
A method of controlling operation of a hybrid continuous current supply, the current supply including a fuel cell stack, a battery, and a dc/dc converter including an input and an output, the converter input being connected to the fuel cell stack output and the output being connected to a variable load in parallel with the battery, the fuel cell stack being formed of a plurality of electrochemical cells configured to produce electricity from a fuel and an oxidizing gas.. .
09/18/14
20140272662
Cell retention design and process
A system and method for reducing the relative movement between adjacent fuel cells within a fuel cell stack includes an improved strategy for distributing an acceleration load over a fuel cell stack while maintaining stack performance after exposure to high acceleration loads. The system comprises a fuel cell stack comprising a plurality of fuel cells enclosed by a housing.
09/18/14
20140272661
Sealing design for stamped plate fuel cells
A fuel cell stack of at least two fuel cells, each fuel cell having a unitized electrode assembly (uea) including a membrane electrode assembly (mea), a sub-gasket and gas diffusion media (dm), and positioned between modified stamped field-flow plates. The sub-gasket frames the mea resulting in an overlap area between the mea and the inner perimeter of the sub-gasket.
09/18/14
20140272657
Apparatus and method for fuel cell standby
An apparatus for placing a fuel cell stack in a standby mode is provided. The apparatus comprises a compressor, a fuel cell stack, a cathode valve and a controller.
09/18/14
20140272655
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.
09/18/14
20140272654
Remedial actions for air flow errors in a fuel cell system
A system and method for operating a fuel cell stack of a fuel cell system in a vehicle when an error in cathode air flow rate is detected. The system and method include estimating a cathode air flow rate and detecting an error in the estimated cathode air flow rate.
09/18/14
20140272652
Systems and methods for predicting polarization curves in a fuel cell system
The present disclosure relates to systems and methods that may be used to predict a performance metric of a fuel cell. A system consistent with the present disclosure may include sensors in communication with the fuel cell stack, a performance metric prediction system, and a control system.
09/18/14
20140272649
Apparatus and method for heating a fuel cell stack
An apparatus for heating a fuel cell stack in a cold start mode is provided. The apparatus comprises a fuel cell stack, a boost converter, and a controller.
09/18/14
20140272646
Fuel cell system and method to prevent water-induced damage
In one or more embodiments, a fuel cell system includes a fuel cell stack including an anode and a cathode, a first conduit positioned to supply oxygen to the cathode, a second conduit positioned to supply hydrogen to the anode, and a third conduit positioned separate from the first and second conduits and to supply oxygen to the second conduit. The third conduit may be positioned to supply oxygen from the first conduit to the second conduit..
09/18/14
20140272644
Fcs overall efficiency by using stored cathode oxygen during down-transients
A system and method for utilizing a pressurized volume of oxygen in a cathode plumbing of a fuel cell system. The system and method includes calculating an air/oxygen balance that is based on an air balance and an oxygen balance in the cathode plumbing.
09/18/14
20140272634
Integrated power generation and chemical production using fuel cells
In various aspects, systems and methods are provided for operating a molten carbonate fuel cell assembly at increased power density. This can be accomplished in part by performing an effective amount of an endothermic reaction within the fuel cell stack in an integrated manner.
09/18/14
20140272631
Centrifugal water separator for a fuel cell system
A separator for a fuel cell includes first and second ends connected by a side wall to define a separation chamber. The first end has a protrusion extending into the chamber to form a channel with the wall.
09/18/14
20140272630
Cathode humidification unit adapting degredation factor
A method and an apparatus to adapt the performance of a cathode humidification unit as a membrane in a fuel cell stack degrades over time. An algorithm compares a sensed humidity profile of the fuel cell stack and model humidity profile of a cathode humidification unit model to calculate a new degradation factor.
09/18/14
20140272625
Integrated operation of molten carbonate fuel cells
In various aspects, systems and methods are provided for operating a molten carbonate fuel cell assembly at increased power density. This can be accomplished in part by performing an effective amount of an endothermic reaction within the fuel cell stack in an integrated manner.
09/18/14
20140272612
Fuel cell mechanical components
A modular fuel cell system includes a metal base, a plurality of power modules arranged in a row on the base, a fuel processing module and a power conditioning module arranged on at least one end of the row on the base. Each of the plurality of power modules includes a separate cabinet comprising at least one fuel cell stack located in a hot box.
09/18/14
20140260311
Integration of molten carbonate fuel cells with fermentation processes
In various aspects, systems and methods are provided for operating a molten carbonate fuel cell assembly at increased power density. This can be accomplished in part by performing an effective amount of an endothermic reaction within the fuel cell stack in an integrated manner.
09/11/14
20140255818
Hemmed fuel cell stack enclosure
A fuel cell system is provided which includes a compression retention enclosure with upper and lower compression shells and side sheet components coupled by interlocking hem joints. Methods for manufacturing compression retention enclosures with hem joints such that the enclosure remains sealed upon operational swelling of the fuel stack are also provided.
09/11/14
20140255810
Fuel cell power control by offset estimation
A system and method for managing power flow in a fuel cell vehicle. The method provides a difference between a power limit signal and an actual power signal to a pi controller to generate a power offset signal.
09/04/14
20140247053
Method of utilizing power transistor of fuel cell stack diagnostic system
A method and an apparatus using a power transistor in a fuel cell stack diagnostic system provides an apparatus using a power transistor in a fuel cell stack diagnostic system. The apparatus includes a regenerative braking detector that detects regenerative braking of a fuel cell vehicle equipped with a fuel cell stack diagnostic system; a voltage rise determiner that determines whether a voltage rise due to regenerative braking of a fuel cell vehicle is a predetermined value or more; and a power transistor controller that controls an ac signal generator so that the voltage due to the regenerative braking is discharged by the power transistor, when the voltage rise due to regenerative braking determined by the voltage rise determiner is a predetermined value or more..
08/28/14
20140242492
Fuel cell stack compression devices and methods
A spring compression assembly is configured to apply a load to a stack of electrochemical cells. The assembly includes a ceramic leaf spring, a tensioner configured to apply pressure to a first side of the spring and a bottom plate located on a second side of the spring opposite the first side of the spring.
08/28/14
20140242486
Apparatus and method for generating virtual sound source for monitoring the operating state of a fuel cell stack
The present invention provides an apparatus and method for generating a virtual sound source for monitoring the operating state of a fuel cell stack, which monitors in real time the deviation and deterioration of a plurality of cells in a fuel cell stack during operation, and expresses the results as a chord or different sounds, thus allowing a driver to easily recognize the operating state of the fuel cell stack. .
08/28/14
20140242483
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). The solid oxide fuel cell stack (12) comprises a plurality of solid oxide fuel cells (16).
08/21/14
20140234747
Fuel cell stack
A fuel cell stack includes a stacked body which includes separators and a membrane electrode assembly. A first terminal plate, a first insulator, and a first end plate are disposed at a first end of the stacked body.
08/21/14
20140234746
Fuel cell stack
A fuel cell stack includes a stacked body, a first terminal plate, a first insulator, a first end plate, a second terminal plate, a second insulator, a second end plate, a fluid manifold, a fluid channel, a fluid hole, a first connection passage, and a second connection passage. The stacked body includes a plurality of separators and a membrane electrode assembly.
08/21/14
20140234743
Fuel cell stack
A fuel cell stack is formed by stacking a plurality of fuel cells in a stacking direction, and at both ends in the stacking direction of the fuel cells, a first end plate and a second plate are provided. An oxygen-containing gas supply connection pipe connected to an oxygen-containing gas supply passage is attached to the first end plate.
08/21/14
20140234742
Fuel cell stack
A fuel cell stack includes a plurality of power generation units, a reactant gas channel, and a coolant channel. The plurality of power generation units are stacked in a stacking direction to provide a stacked body and each includes a first separator, a first electrolyte electrode assembly, a second separator, a second electrolyte electrode assembly, and a third separator.
08/21/14
20140234736
Solid oxide fuel cell device
The present invention is a solid oxide fuel cell device with a load following function for changing a fuel supply rate in response to a load defined as a required power determined by demand power. The solid oxide fuel cell device comprises a fuel cell module having a fuel cell stack composed of a plurality of solid oxide fuel cells and a reformer for reforming fuel and supplying the fuel to the fuel cells; an inverter for receiving electrical power generated by the fuel cell module and converting the power to alternating power; a command power value setting device for setting a command power value to be generated by the fuel cell module based on the amount of load; a fuel control device for determining an fuel supply rate and supplying the fuel by the fuel supply rate to the fuel cells so as to generate the command power value; an inverter permitted power value instruction device for instructing to the inverter an inverter permitted power value corresponding to the command power value, which is the permitted amount of power to be extracted from the fuel cell module, after the fuel has been supplied by the fuel supply rate to the fuel cells by the fuel control device; and an inverter permitted power value change device for changing an amount of change per unit time in a next inverter permitted power value based on a temperature inside the fuel cell module and outputting the amount of change per unit time to the inverter permitted power value instruction device; wherein the inverter permitted power value change device changes the amount of change per unit time in the inverter permitted power value to be larger, the higher the temperature is, in a temperature region equal to or lower than a first predetermined temperature, and to be smaller, the higher the temperature is, in a temperature region equal to or higher than a second predetermined temperature..


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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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