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Fuel Cell Stack patents

      

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




new patent Apparatus and controling air supply into fuel cell stack
An apparatus and a method are provided for controlling an air supply into a fuel cell stack capable of rapidly reducing an air supply up to a required flow rate when it is required to suddenly reduce an air flow rate supplied to the fuel cell stack for a reduction in vehicle power, etc., in a pressurized operation condition. The apparatus includes an air compressor that is configured to compress air and supply the air to a cathode of the fuel cell stack and a back pressure control valve that is installed in a line to which air subjected to reaction in the fuel cell stack is emitted.
Hyundai Motor Company


new patent Water recovery in a fuel cell system
A fuel cell system comprises a fuel cell stack with a cathode exhaust outlet coupled to a cathode exhaust conduit. A condenser is provided in the cathode exhaust conduit for extracting water from a cathode exhaust stream in the cathode exhaust conduit.
Intelligent Energy Limited


new patent Single cell with metal plate, fuel cell stack, and producing single cell with metal plate
A metal plate-bonded single fuel cell unit according to one aspect of the present invention includes a single cell element having a solid electrolyte and fuel and air electrodes disposed on opposite sides of the solid electrolyte and a metal plate bonded by a brazing material to the single cell element. The metal plate contains ti and al and has an al-ti-containing oxide layer present on a surface of the metal plate, an al oxide film present on a surface of the al-ti-containing oxide layer and a ti-containing phase apart from a part of a surface of the al oxide film in contact with the brazing material while being present on a remaining part of the surface of the al oxide film.
Ngk Spark Plug Co., Ltd.


new patent Fuel cell system having a fuel cell stack arranged in a housing, and a measure for ventilating the housing
A fuel cell system, in particular for a motor vehicle, has a fuel cell stack arranged in a housing and a measure for ventilating this housing by coupling the ventilation stream to another gas stream. The ventilation stream is fed to an air stream which is conducted through a radiator of the fuel cell system.
Bayerische Motoren Werke Aktiengesellschaft


new patent Method for calculating hydrogen consumption amount of fuel cell vehicle
A method for calculating an amount of hydrogen consumed by a fuel cell vehicle, in order to improve the accuracy of fuel efficiency calculation when the fuel cell vehicle travels under real-world conditions, includes: calculating a hydrogen consumption amount via integration of stack current generated in a fuel cell stack, calculating an amount of unreacted hydrogen purged from the fuel cell stack, and calculating a final hydrogen consumption amount by adding the purged amount of hydrogen to the hydrogen consumption amount calculated via the stack current integration.. .
Hyundai Motor Company


Passive power management and battery charging for hybrid fuel cell/battery system
Disclosed herein is a circuit for passively managing power between a fuel cell stack and a battery in a hybrid system. The circuit includes a buck-boost converter circuit, a direct charge circuit; and a network which interconnects them.
Energyor Technologies Inc


Operation control fuel cell system
An operation control method of a fuel cell system is provided that increases the output of a fuel cell stack by detecting and overcoming the cause of a performance limit when the stack reaches the performance limit during high-altitude operation of a fuel cell vehicle, thereby achieving higher stack performance and vehicle power performance. The method includes determining whether an operation state of the stack corresponds to a predetermined condition in which a stack output limit occurs by determining current operation state information of the stack.
Hyundai Motor Company


Fuel cell vehicle
A fuel cell vehicle includes an accelerating state detector, an electric resistance value detector, a current value detector and a controller. The controller is configured to determine a target current value output from the fuel cell stack based on a requested output value of the fuel cell stack in accordance with the detected accelerating state, determine a current increase rate based on a difference between the determined target current value and the detected current value, and correct the determined target current value in such a manner as to reduce the determined target current value in a case where a value of a function that includes the determined target current value, the determined current increase rate, and the detected electric resistance value becomes larger than a predetermined threshold..
Toyota Jidosha Kabushiki Kaisha


Reforming with oxygen-enriched matter
Various embodiments that pertain to oxygen enrichment are described. Oxygen enrichment is shown to allow for independent control of both reformer residence time and the oxygen-to-carbon ratio during reforming.
The Government Of The United States, As Represented By The Secretary Of The Army


Fuel cell stack and mount structure therefor
A second end plate constituting a fuel cell stack is provided with a cooling medium supply manifold member and a cooling medium discharge manifold member. The second end plate is also provided with a mount member that affixes the fuel cell stack to an automobile body frame and covers the cooling medium discharge manifold member..
Honda Motor Co., Ltd.


Fuel cell system

A fuel cell stack 5 adapted for an electrochemical reaction of a fuel gas to generate an electric power is provided with a working point measuring section 51 for measuring a generation voltage and a generation current of the fuel cell stack 5, and connected to a controller 7 including an output characteristic map memory 72 for storing output characteristics of the fuel cell stack 5, and a potential output power estimator 71 for estimating a potential output power of the fuel cell stack 5 based on a combination of a current generation voltage vo and a current generation current io measured by the working point measuring section 51 and pieces of information stored in the output characteristic map memory 72.. .
Suzuki Motor Corporation

Method and recovering performance of fuel cell stack

A method for recovering performance of a fuel cell stack includes 1) a first pulse operation process including i) generating a hydrogen pumping reaction in a cathode by applying a current to the cathode after a supply of air to the cathode stops and ii) maintaining an ocv (open circuit voltage) by again supplying air to the cathode after the hydrogen pumping is performed, 2) a pole substitution process of substituting a pole of the fuel cell stack, and 3) a second pulse operation process including iii) generating the hydrogen pumping reaction in the cathode after the pole substitution, and iv) maintaining the ocv (open circuit voltage) by supplying air to the cathode after the pole substitution after the hydrogen pumping is performed.. .
Hyundai Motor Company

Fuel cell system and controlling method thereof

A fuel cell system is disclosed, which includes a fuel cell stack coupled to a load for providing power, a gas delivery system coupled to the fuel cell stack for providing fuel and oxygen to the fuel cell stack and a control system. The control system includes a forward controller for generating a desired control instruction signal based on a command from the load, and a correction controller for generating a control correction signal to avoid violating operational constraints of the fuel cell stack based on at least one measured signal from the fuel cell system.
General Electric Company

Fuel cell system having valve module between fuel cell stack and humidifier

A fuel cell system includes an air supply unit for supplying air containing oxygen to a fuel cell stack. A humidifier humidifies the supplied air.
Hyundai Motor Company

Separator for fuel cell and manufacturing fuel cell stack

A separator for fuel cell is used for a fuel cell and is placed to face a membrane electrode assembly. The separator includes a separator center area placed to face a power generation area of the membrane electrode assembly; a peripheral region extended from the separator center area toward an outer edge; a cooling medium supply manifold and a cooling medium discharge manifold provided in the peripheral region; a fluid flow path area extended from the cooling medium supply manifold through the separator center area to the cooling medium discharge manifold; a sealing gasket provided in the peripheral region and placed to surround the fluid flow path area; and a gasket for peel test provided outside of the fluid flow path area and configured to receive an external force applied as a test for evaluation of an adhesive state of the gasket.
Toyota Jidosha Kabushiki Kaisha

Method for accelerating activation of fuel cell stack

A method for accelerating activation of a fuel cell stack may shorten an activation time of the fuel cell stack and reduce the amount of hydrogen used. The method includes a process of applying a high current to the fuel cell stack for a prescribed amount of time and a shutdown maintenance process of pumping hydrogen to an air electrode reaction surface for a prescribed amount of time..
Hyundai Motor Company

Method for adjusting an operating gas flow in a fuel cell system, and a fuel cell system

A method for adjusting an operating gas flow in a fuel cell system including a fuel cell stack, a supply path for feeding operating gas to the fuel cell stack, an exhaust gas path for removing the operating gas from the fuel cell stack, as well as a recirculation line, including a conveyor unit, which connects the supply path and the exhaust gas path to each other. The method includes measuring a pressure p1 and a temperature t1 in the supply path upstream from a junction point between the recirculation line and the supply path; measuring a pressure p2 and a temperature t2 in the recirculation line upstream from the junction point; measuring a pressure p3 and a temperature t3 in the supply path downstream from the junction point; determining a recirculation ratio from the parameters t1, t2, t3, p1, p2 and p3; adjusting the operating gas flow through the recirculation line as a function of the recirculation ratio..
Volkswagen Ag

Apparatus and controlling purge valve of fuel cell vehicle

An apparatus and method for controlling a purge valve of a fuel cell vehicle are provided to reduce a consumption amount of hydrogen and improve fuel efficiency. In particular, whether oxygen concentration in a channel of an anode of a fuel cell stack exceeds a reference value is estimated while restarting the vehicle after the vehicle is parked.
Hyundai Motor Company

Fuel cell cassette and fuel cell stack

Provided is a fuel cell cassette capable of assuredly suppressing separator deformation and maintaining good battery characteristics. A fuel cell cassette (2) includes a flat plate-shaped single cell (11), a separator (12), a fuel electrode frame, an interconnector and an air electrode insulating frame (15) stacked together.
Ngk Spark Plug Co. Ltd.

Fuel cell stack assembly and assembly

A method of manufacturing a membrane electrode assembly for a fuel cell comprising a proton exchange membrane and a catalyst layer including a catalyst, the method comprising; forming a gas diffusion layer comprising graphene.. .
Intelligent Energy Limited

Apparatus and fastening fuel cell stack

An apparatus and method are provided for fastening a fuel cell stack capable of significantly enhancing assembly characteristics and productivity of a stack by preventing insulating plates, when assembled, from being interfered or hampered by other components, while maintaining the stack pressed with appropriate pressure applied thereto. The apparatus includes a loading jig into which a stack is loaded and a press block that is configured to press the stack.
Hyundai Motor Company

Modular fuel cell power system

A modular fuel cell power system includes a coolant source, a reactant source and a plurality of fuel cell modules. Each of the fuel cell modules includes a fuel cell stack and a fluid distribution plant in fluid communication with the reactant source, coolant source and fuel cell stack.
Ford Motor Company

Fuel cell system and control method

A fuel cell system includes: a fuel cell stack; a fuel gas passage member in which the fuel cell stack is connected in a middle and a fuel gas supply source is connected to one end; a purge valve allowed to switch between an open state and a closed state; a detection part detecting a physical quantity relevant to at least one of the fuel gas supply source, the fuel gas passage member, and the fuel cell stack; a first purge part, at a given purge timing, controlling switchover between the open state and the closed state of the purge valve so as to perform first purge; a first determination part, determining whether second purge is to be performed after the first purge; and a second purge part, controlling switchover between the open state and the closed state of the purge valve so as to perform the second purge.. .
Brother Kogyo Kabushiki Kaisha

Device for changing anode inlet and anode outlet of fuel cell stack

A device for changing an anode inlet and an anode outlet of a fuel cell stack includes an inlet manifold connected the anode inlet of the fuel cell stack and an outlet manifold connected to the anode outlet. An inlet and outlet changing means is disposed inside one of the inlet manifold and the outlet manifold and controls flow directions of the anode inlet and the anode outlet to be the same or opposite to each other..
Hyundai Motor Company

Solid oxide fuel cell and solid oxide fuel cell stack

A solid oxide fuel cell that includes a power generation film including first and second electrode layers and a solid oxide electrolyte layer; first and second bases that define first and second gas flow channels; and a via-hole conductor unit connected to the first electrode layer. The via-hole conductor unit has a first via-hole conductor with a first end surface and a second via-hole conductor with a second end surface.
Murata Manufacturing Co., Ltd.

Electrode catalyst, composition for forming gas diffusion electrode, gas diffusion elelctrode, membrane-electrode assembly, and fuel cell stack

To provide electrode catalyst which has the catalyst activity and durability at a practically durable level and contributes to lowering of the cost in comparison with the conventional pt/c catalyst. The electrode catalyst has a support and catalyst particles supported on the support.
N.e. Chemcat Corporation

Housing for multiple fuel cell stacks

Systems and methods are provided for arranging processing units in a common volume to allow for processing of a fluid flow as part of a mass and/or heat transfer process. Fuel cells are examples of processing units that include separate flow paths for processing two input fluid flows with mass and/or heat transfer between the separate flow paths.
Exxonmobil Research And Engineering Company

Method for controlling an operating point change of a fuel cell stack and a fuel cell system

A method for controlling an operating point change of a fuel cell stack (10) operated with an anode operating medium and with a cathode operating medium, in which the fuel cell stack (10) is controlled in such a way that, starting from an initial electric power (l1), the fuel cell stack generates a target power (l2) requested by an electrical consumer (51), which is greater than the initial power (l1) is provided. It is provided that the electric power generated by the fuel cell stack (10) is controlled in accordance with a predetermined current-voltage profile (s1, s2, s3), so that a voltage present at the fuel cell stack (10), starting from an initial voltage (u1) corresponding to the initial power (l1), passes through a local voltage minimum (umin) and then increases to an end voltage corresponding to the target power (l2)..
Volkswagen Ag

Bipolar plate having half plates of varying thickness and fuel cell stack having same

A bipolar plate (10) for a fuel cell, including a first half plate (20) having a first thickness (21) and a second half plate (30) having a second thickness (31), the first half plate (20) and the second half plate (30) each being situated with one of their flat sides facing one another, and the first half plate (20) forming a first flow field (22) on its outer side for a first operating medium and the second half plate (30) forming a second flow field (32) on its outer side for a second operating medium is provided. It is provided that the first thickness (21) of the first half plate (20) is on average smaller, at least in sections, than the second thickness (31) of the second half plate (30)..
Volkswagen Ag

Structure for mounting fuel cell stack

A structure for mounting a fuel cell stack in an enclosure or a frame includes a first mounting mechanism for fastening and mounting a first mounting part located at a first side of the fuel cell stack in a longitudinal direction of the stack, which is a cell stacking direction, to the enclosure or the frame in a completely fixing fashion, and a second mounting mechanism for mounting a second mounting part located at a second side of the fuel cell stack in the longitudinal direction of the stack to the enclosure or the frame in a state of being movable in the longitudinal direction of the stack.. .
Hyundai Motor Company

Fuel cell system

A fuel cell system includes: a fuel cell stack; a centrifugal compressor that compresses and supplies the oxidant gas to the fuel cell stack; a regulating valve that controls pressure at an outlet of the compressor; and a control unit that controls the compressor and the regulating valve, wherein the control unit determines a rotation speed of the compressor and an open degree of the regulating valve based on a target air flow rate corresponding to a current value instructed to the fuel cell stack, actuates the compressor based on the determined rotation speed, and actuates the regulating valve based on the determined open degree. The control unit executes feedback control to reduce the difference between an actual air flow rate and a target air flow rate by changing the open degree of the regulating valve while maintaining the rotation speed of the compressor..
Toyota Jidosha Kabushiki Kaisha

Fuel cell system and control method thereof

A fuel cell system comprises a fuel cell stack, radiator, stack side cooling water passage, radiator side cooling water passage, bypass cooling water passage, deionizer, stack side cooling water pump, and radiator side cooling water pump. The pump are formed from rotary pumps able to change directions and amounts of cooling water discharged by changes of drive speeds.
Toyota Jidosha Kabushiki Kaisha

Thermo-electrochemical cell energy recovery system

Systems and methods are provided for generating electric power using low grade thermal energy from a vehicle. The methods may include surrounding at least a portion of a coolant conduit system with a flexible thermo-electrochemical cell including a nanoporous cathode electrode, a nanoporous anode electrode, and an electrolyte.
Toyota Motor Engineering & Manufacturing North America, Inc.

Heater and supporting structure thereof

A heater includes a heater housing extending along a heater axis; a fuel cell stack assembly disposed within the heater housing and having a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent; a first medium conduit fixed relative to the heater housing and in fluid communication with the fuel cell stack assembly, the first medium conduit including a first medium conduit shelf extending laterally from the first medium conduit; a second medium conduit fixed relative to the heater housing and in fluid communication with the fuel cell stack assembly, the second medium conduit including a second medium conduit shelf extending laterally from the second medium conduit; wherein the fuel cell stack assembly is supported on the first medium conduit shelf and the second medium conduit shelf.. .
Delphi Technologies, Inc.

Fuel reformer for fuel cell system and fuel cell system with the same

Provided is a fuel reformer for a fuel cell system, which includes an autothermal reforming reactor having an autothermal reforming reaction catalyst and configured to produce a reforming gas with abundant hydrogen by using a hydrocarbon-based fuel, water and air, an ato reactor configured to produce a high-temperature combustion gas by burning a fuel-containing tail gas discharged from a fuel cell stack, and an ato heat exchanger configured to increase a temperature of a mixture of water and air supplied to the autothermal reforming reactor, by using the combustion gas produced by the ato reactor.. .
H&power, Inc.

Fuel cell stack and fuel cell module

A fuel cell stack according to one aspect of the present invention has a plurality of fuel cells stacked together and a plurality of manifolds passing through the fuel cells in a stacking direction thereof so as to allow at least one of the fuel gas and the oxidant gas to flow therethrough. The manifolds include cold gas manifolds adapted to introduce the fuel gas or oxidant gas from the outside into the fuel cell stack, hot gas manifolds adapted to discharge the fuel gas or oxidant gas from the fuel cells, and a heat-exchanged gas manifold adapted to feed the fuel gas or oxidant gas that has been heat-exchanged in a heat exchange part.
Ngk Spark Plug Co., Ltd.

Separator for fuel cell and fuel cell stack

An object is to equalize the level of cooling along a top-bottom direction of a fuel cell stack. A fuel cell stack has an anode-side separator placed between a plurality of membrane electrode assemblies.
Toyota Jidosha Kabushiki Kaisha

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

Fuel cell controlling fuel cell system

A fuel cell system supplies anode and cathode gases, and generates power through an electrochemical reaction of the gases in accordance with a load. The system includes a compressor that supplies the cathode gas to a fuel cell stack, and a pressure regulator valve that adjusts the pressure of the cathode gas in the fuel cell stack.
Nissan Motor Co., Ltd.

Heater

A heater assembly includes a plurality of fuel cell stack assemblies which each have a plurality of fuel cells, a fuel inlet, and an air inlet; a fuel supply conduit which communicates fuel to the fuel inlets; and an air supply conduit which communicates air to the air inlets. An orifice is disposed between the fuel supply conduit and the fuel inlet or between the air supply conduit and the air inlet of each fuel cell stack assembly.
Delphi Technologies, Inc.

Fuel cell system

A fuel cell system includes: a cathode pressure control unit configured to control a pressure of a cathode gas to be supplied to the fuel cell stack on the basis of a load of the fuel cell stack; and an anode pressure control unit configured to control a pressure of an anode gas to be supplied to the fuel cell stack to become higher than the pressure of the cathode gas so that a differential pressure between the pressure of the anode gas and the pressure of the cathode gas becomes a predetermined differential pressure or lower. The anode pressure control unit controls, at a time of recovery from idle stop, the pressure of the anode gas to be supplied to the fuel cell stack to a recovery-time pressure, the recovery-time pressure being obtained by adding the predetermined differential pressure to a predetermined pressure corresponding to an atmosphere pressure..
Nissan Motor Co., Ltd.

Separator-fitted single fuel cell, and fuel cell stack

A separator-fitted single fuel cell having a single fuel cell, a plate-shaped metallic separator that includes a through hole, and a joint portion that joins the single fuel cell to the metallic separator and is made of a brazing material containing ag. The joint portion includes a protruding portion that protrudes from a gap between the single fuel cell and the first main surface of the metallic separator toward the through hole.
Ngk Spark Plug Co., Ltd.

Fuel cell module

A fuel cell unit of a fuel cell module includes a fuel cell stack, a reformer, an evaporator, an exhaust gas combustor, a start-up combustor, and an air preheater. The fuel cell module further includes an air supply channel, a first fuel supply channel, a second fuel supply channel, a switching valve, and an exhaust gas channel.
Honda Motor Co., Ltd.

Fuel cell system for industrial electric vehicle

A fuel cell system for a forklift includes a fuel cell stack consisting of an anode, a cathode and a coolant passage. A fuel tank is provided for supplying hydrogen to the anode.
M-field Energy Ltd.

Hybrid electrical power system for industrial electric vehicle and operation thereof

A hybrid electrical power system for an electric vehicle, particularly an industrial electric vehicle such as an electric forklift, comprises a fuel cell stack, a dc/dc converter and a li-ion battery. The dc/dc converter comprises a transformer for converting a voltage of direct current generated by the fuel cell stack to another voltage, and a controller for generating a reference voltage for the another voltage to approach.
M-field Energy Ltd.

Hybrid electrical power system for industrial electric vehicle

A hybrid electrical power system for an industrial electric vehicle such as an electric forklift, includes a base weight, an electrical power module on the base weight and front and rear frame supports erected from the base weight and sandwiching the electrical power module therebetween. The electrical power module includes a fuel cell module having a fuel cell stack, a hydrogen storage tank and an air blower, and a li-ion rechargeable battery module.
M-field Energy Ltd.

Gas-liquid separator of fuel cell system

A gas-liquid separator capable of decreasing the height dimension thereof and a fuel cell system suitable for the gas-liquid separator are provided. In a gas-liquid separator, an introduction pipe connected to a main pipe includes an enlarged portion.
Brother Kogyo Kabushiki Kaisha

Afterburners including methods of making and operating

The present teachings provide designs and materials of construction for afterburners as well as methods of making the afterburners. More specifically, the afterburners of the present teachings can include a compressible, resilient refractory material such that thermal expansion of other adjacent components, for example, a fuel cell stack of a fuel cell unit, can be accommodated by the afterburner.
Watt Fuel Cell Corp.

Fuel-cell separator and cell stack

Separators of multiple types capable of supplying and diffusing fluids such as an anode gas, cathode gas and coolant uniformly are prepared and combined to construct a fuel cell stack. Such a cell stack (20) for fuel cells includes separators of at least two types (types ca, c, a, c, cw and aw) for anode gas and cathode gas.
University Of Yamanashi

Zero-energy consuming thermal energy management system for vehicles

Systems and methods are provided for the continuous operation of an air conditioning unit or climate control system in a vehicle. The system may include a power generating unit, such as an engine or a fuel cell stack, and an exhaust loop in fluid communication with the power generating unit.
Toyota Motor Engineering & Manufacturing North America, Inc.

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

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

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



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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    This listing is a sample listing of patent applications related to Fuel Cell Stack for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Fuel Cell Stack with additional patents listed. Browse our RSS directory or Search for other possible listings.


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