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Fuel Cell Stack patents

      

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




 Fuel cell system coupled to a portable computing device patent thumbnailFuel cell system coupled to a portable computing device
The disclosed embodiments relate to the design of a fuel cell system which is capable of both providing power to and receiving power from a rechargeable battery in a portable computing device. This eliminates the need for a bulky and heavy battery within the fuel cell system, which can significantly reduce the size, weight and cost of the fuel cell system.
Apple Inc.


 Electric vehicle patent thumbnailElectric vehicle
A compressor, an intercooler, and a fuel cell stack are housed in a housing compartment. The compressor and the intercooler are connected with each other by upstream side piping, and the intercooler and the fuel cell stack are connected with each other by downstream side piping.
Toyota Jidosha Kabushiki Kaisha


 Fuel cell system as well as a vehicle having such a fuel cell system patent thumbnailFuel cell system as well as a vehicle having such a fuel cell system
A fuel cell system (100) having a fuel cell stack (10) and a fuel cell cooling system (40) to cool the fuel cell stack (10), including a coolant path (4) into which the fuel cell stack (10) is integrated so as to transfer heat and in which at least one cooler (43) or heat exchanger is arranged. It is provided that the at least one cooler (43) or heat exchanger that does not have shock-hazard protection is interconnected so as to establish equipotential bonding (47), whereby at least one control element is arranged in the connection of the at least one cooler (43) or heat exchanger to equipotential bonding (47).
Volkswagen Ag


 Use of neural network and eis signal analysis to quantify h2 crossover in-situ in operating pem cells patent thumbnailUse of neural network and eis signal analysis to quantify h2 crossover in-situ in operating pem cells
Methods for detecting a hydrogen leak and quantifying a rate of the same in a polymer electrolyte membrane fuel cell stack are provided, as well as a fuel cell diagnostic apparatus that diagnoses a hydrogen leak in a fuel cell stack.. .
Simon Fraser University


 Fuel cell purge line system patent thumbnailFuel cell purge line system
A fuel cell system including a fuel cell stack, separator and a scavenging reservoir. The fuel cell stack is configured to generate water and reusable fuel.
Ford Global Technologies, Llc


 Connector system for a fuel cell stack assembly patent thumbnailConnector system for a fuel cell stack assembly
A fuel cell stack assembly comprises fuel cells disposed in a stacked configuration, each cell substantially parallel to an x-y plane and including a tab extending laterally from an edge of a plate in the cell in the x-direction to form an array of tabs extending along a side face of the fuel cell stack in a z-direction orthogonal to the x-y plane. A connector engages with the tabs of the fuel cell stack.
Intelligent Energy Limited


 Apparatus for assembling fuel cell stack patent thumbnailApparatus for assembling fuel cell stack
An apparatus for assembling a fuel cell stack is provided. The apparatus exerts a force on fuel cell components stacked on a stacking guide and couples a pressed stacked body formed of the pressed fuel cell components by a fastening member.
Hyundai Motor Company


 A clamp assembly for a fuel cell stack and a  assembling a fuel cell stack patent thumbnailA clamp assembly for a fuel cell stack and a assembling a fuel cell stack
A clamp assembly for securing a fuel cell stack arrangement in a compressed condition. The stack includes an electrode assembly interposed between upper and lower current collectors, supportable between upper and lower endpiate structures.
University Of Cape Town


 Fuel cell system with improved thermal management patent thumbnailFuel cell system with improved thermal management
There is disclosed a high temperature fuel cell system incorporating off-gas anode loop recycling and reforming. The fuel cell system includes a fuel cell stack having an anode inlet for fuel and an anode outlet for off-gas.
Lg Fuel Cell Systems Inc.


 Electrochemical hydrogen sensor for global/local hydrogen starvation detection in pem fuel cells patent thumbnailElectrochemical hydrogen sensor for global/local hydrogen starvation detection in pem fuel cells
A fuel cell stack hydrogen starvation detection device, a fuel cell system and a method of operating a fuel cell stack to protect it from hydrogen starvation conditions. In one particular form, the fuel cell system includes a stack of fuel cells, a controller and a detection device made up of one or more sensors that can compare a reference signal corresponding to the presence of substantially pure hydrogen to a signal that corresponds to a local hydrogen value within a single fuel cell within the stack or across multiple fuel cells within the stack.
Gm Global Technology Operations Llc


Stack protection method in case of emergency shut down or black out in solid oxide fuel cell system

The present invention relates to a stack protection method in case of emergency shut down or black out in a solid oxide fuel cell system and, more particularly, to a system and a method for, if supply of fuel gas and water to an anode channel of a stack is discontinued due to emergency shut down or black out, etc. In a solid oxide fuel cell system, preventing an anode from being contaminated by oxygen in the air and preventing re-oxidation of an anode material from occurring and cracks from forming on the stack due to the contamination.
Postech Academy-industry Foundation

Cooling system and operating cooling system

A cooling system of a vehicle having a fuel cell stack includes a pump for circulating a coolant in a coolant line passing through the fuel cell stack, a heater disposed on the coolant line for heating the coolant by electric power supplied by a drive motor of the vehicle, and a controller for operating the heater by a surplus electric power generated by the drive motor when a heat generation amount of the fuel cell stack is less than a first threshold value and a rotation speed of the pump is above a second threshold value, and for turning off the heater when the heat generation amount of the fuel cell stack is less than the first threshold value and the rotation speed of the pump is less than the second threshold value.. .
Hyundai Motor Company

Integrated sealing for fuel cell stack manufacturing

A seal and corresponding method of manufacture of stacks enabled by the physical properties of the seal are provided. In the instance of a fuel cell or other electrochemical stack, the seal provides low-cost manufacturing and reliable/durable operation in high temperature (e.g., 120° c.
Trenergi Corp.

Method for manufacturing separator of fuel cell stack

A method for manufacturing a separator of a fuel cell stack includes: forming a gasket on the separator of the fuel cell stack; masking a surface of the separator except for a region of the surface of the separator on which the gasket is formed; and inserting the partially masked separator into a chamber to cross-link the gasket.. .
Hyundai Motor Company

Driving control method and system of fuel cell vehicle

A driving control method and system for a fuel cell vehicle are provided. The driving control method includes monitoring, by a vehicle controller, information regarding vehicle conditions and entering a minimum driving mode when the monitored vehicle conditions meet minimum-driving-mode entry conditions.
Hyundai Motor Company

Control system for and control electric vehicle

To make a fuel cell stack reliably discharge at the time of vehicle collision, a control system for an electric vehicle is provided with a fuel cell stack generating electric power by an electrochemical reaction between fuel gas and oxidizing gas and supplying generated electric power to an electric motor for driving the vehicle, a first electrical resistor for discharge electrically connected to the fuel cell stack through an electrically controlled type discharge switch, a discharge control circuit controlling an on/off state of the discharge switch, and a collision detector detecting a vehicle collision and outputting a collision signal to the discharge control circuit. When a collision signal is input to the discharge control circuit, it turns the discharge switch on and electrically connects the fuel cell stack to the first electrical resistor for discharge, to thereby discharge the fuel cell stack.
Toyota Jidosha Kabushiki Kaisha

Cathode current collector for solid oxide fuel cell, and solid oxide fuel cell comprising same

The present invention relates to a cathode current collector for a solid oxide fuel cell and, more particularly, to a cathode current collector inserted between a cell and a metal separator constituting a unit of a fuel cell stack, and a solid oxide fuel cell comprising the same.. .
Alantum Corporation

Fuel cell stack arrangement

The present invention is concerned with improved fuel cell stack assembly arrangements.. .
Ceres Intellectual Property Company Limited

Method for controlling operation pressure of fuel cell system

A control method of an operation pressure of a fuel cell system maintains a differential pressure between a hydrogen side and an air side of a fuel cell stack to minimize a crossover amount of hydrogen while allowing hydrogen purge and reduces an exhausted hydrogen amount when a purge valve is opened at the time of purging hydrogen using a differential pressure of an anode outlet and a cathode outlet to improve a hydrogen utilization rate and system efficiency. According to the control method, pressures of a cathode inlet and a cathode outlet of the fuel cell stack and a pressure of an anode outlet are controlled such that the pressure of the anode outlet of the fuel cell stack is lower than the pressure of the cathode inlet and higher than the pressure of the cathode outlet..
Hyundai Motor Company

Fuel cell system

An object is to reduce the noise and the vibration caused in operation of an injector in a non-power generation state of a fuel cell. There is provided a fuel cell system comprising fuel cells configured such that each fuel cell includes an anode, an electrolyte membrane and a cathode; an injector that is configured to supply hydrogen to the anode; and a controller that is configured to control operation of an injector to make pressure of the anode reach a target pressure.
Toyota Jidosha Kabushiki Kaisha

Multi-voltage fuel cell

A fuel cell stack has a first end plate, a second end plate, and an internal current collecting plate. A first load is connected to the first end plate and the second end plate.
Hamilton Sundstrand Space Systems International, Inc.

Fuel cell stack and producing the same

A flat-plate-type fuel cell stack including a plurality of plate-shaped stacked fuel cells each including an electrolyte layer, an anode, and a cathode. The fuel cell stack includes at least one of a fuel manifold communicating with a space adjacent to the anode and an oxidant manifold communicating with a space adjacent to the cathode.
Ngk Spark Plug Co., Ltd.

Method for cold-start of fuel cell stack

Methods and systems are provided for cold-start of fuel cell stack in fuel cell vehicles. In one example, a method may include in response to cold-start of fuel cell vehicle, limiting the load drawn from the fuel cell stack.
Automotive Fuel Cell Cooperation, Corp.

Shutdown fuel cell stack and fuel cell system therefor

A fuel cell stack, a method of operating a fuel cell stack and a fuel cell system. In one particular form, shutting down the stack upon detection of a leakage of fuel either within the stack or from the stack involves depressurizing and uniform consumption of hydrogen by catalytic consumption in the cathode of all cells.
Honda Motor Co., Ltd.

Combined fuel cell stack and heat exchanger assembly

Disclosed herein is a combined fuel cell and heat exchanger stack assembly. The assembly includes two electrically conductive plates, each plate having two sets of spaced apart fluid openings.
Energyor Technologies Inc

Metal separation plate for fuel cell stack and fuel cell stack having the same

Disclosed are a metal separation plate for a fuel cell stack, which includes protrusion patterns each having an air path opened in a short-side direction or protrusion patterns each having an air path of which one side is opened and the other side is closed, and can not only improve cooling performance and stack performance without a separate cooling plate mounted therein, and but also improve humidification performance of a membrane electrode assembly (mea) by blocking moisture leaking from the inside of the closed air paths, and a fuel cell stack having the same.. .
Hyundai Steel Company

Electrochemical reaction unit and fuel cell stack

An electrochemical reaction unit which includes a unit cell including an electrolyte layer, a cathode, and an anode facing each other in a first direction; a current collector disposed on a cathode side of the unit cell; and an electrically conductive porous bonding layer. A bonding region contains a block portion and an electrical conductivity securing portion.
Ngk Spark Plug Co., Ltd.

Electric vehicle

In order to secure a driving performance of an electric vehicle while stably supporting a fuel cell stack, a fuel cell stack generating electric power, a motor generator, and an electrical adjuster are accommodated in an accommodation compartment formed at a front side of a passenger compartment in a vehicle length direction. The electric motor and the electrical adjuster are housed in a common, bottom casing and the bottom casing is arranged at a bottom of the accommodation compartment.
Toyota Jidosha Kabushiki Kaisha

Apparatus for rapidly stacking fuel cell stack

An apparatus is provided to stack a fuel cell stack by pressurizing a separating plate component including a membrane-electrode assembly (mea) sheet component, in which gas diffusion layers are bonded to both surfaces of an mea, respectively. The apparatus include a component aligning unit connected to a completion end of a component transfer route of a conveyor to align the separating plate component and the mea sheet component transferred by the conveyor to predetermined positions.
Hyundai Motor Company

Apparatus for automatically stacking fuel cell stack

An apparatus for automatically stacking a fuel cell stack includes a component pick-up unit configured to simultaneously pick up one separating plate component accommodated in a first magazine and one membrane-electrode assembly (mea) sheet component accommodated in a second magazine, and load the components onto a start end of a component transfer route of a conveyor; a component examining unit installed at an upper side of the component transfer route of the conveyor, a defective component extracting unit installed at a rear side of the component examining unit, a component stacking unit installed at a distal end of the component transfer route of the conveyor, and a component pressurizing unit installed at an upper side of a transfer route of the stack guide.. .
Hyundai Motor Company

Systems and methods for fuel desulfurization

Methods and apparatus are provided for a fuel cell including a fuel desulfurization system. The fuel cell system includes a source of fuel and a fuel desulfurization system fluidly coupled to the source of fuel to receive the fuel in a liquid phase.
Honeywell International Inc.

Systems for hybrid fuel cell power generation

Apparatus are provided for a hybrid fuel cell system. The hybrid fuel cell system includes a fuel supply system.
Honeywell International Inc.

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)..
Saint-gobain Ceramics & Plastics, Inc.

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

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

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.

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

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 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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