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Fuel Cell patents



      

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




Date/App# patent app List of recent Fuel Cell-related patents
05/19/16
20160141905 
 Power supply system and voltage control  fuel cell patent thumbnailPower supply system and voltage control fuel cell
A voltage control method for a fuel cell may include: interrupting electrical connection between the fuel cell and a load in a low load state; supplying oxygen to the fuel cell in accordance with a preset condition during the electrical connection is interrupted; detecting an ocv of the fuel cell after oxygen is supplied to the fuel cell in accordance with the preset condition; reducing an amount of oxygen supplied to the fuel cell when the ocv is higher than a target voltage by a first value or larger; increasing the amount of oxygen when the ocv is lower than the target voltage by a second value or larger; and keeping the amount of oxygen when the ocv is lower than a sum of the target voltage and the first value and higher than a value obtained by subtracting the second value from the target voltage.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141896 
 A segmented fuel cell-battery passive hybrid system patent thumbnailA segmented fuel cell-battery passive hybrid system
An apparatus for supplying electrical energy to a varying load is disclosed. The apparatus comprises fuel cells and energy storage devices.
Imperial Innovations Limited


05/19/16
20160141863 
 Safety apparatus of fuel cell vehicle and  controlling the safety apparatus patent thumbnailSafety apparatus of fuel cell vehicle and controlling the safety apparatus
A safety apparatus uses a fuel cell and a high voltage battery as a power source, and includes: a first voltage sensor that measures a voltage of a positive side of a voltage bus; a second voltage sensor that measures a voltage of a negative side of the voltage bus; and a controller that determines an electrical insulation between the positive side of the voltage bus and the electrical chassis based on the voltage of the positive side of the voltage bus and determines an electrical insulation between the negative side of the voltage bus and the electrical chassis based on the voltage of the negative side of the voltage bus.. .
Hyundai Motor Company


05/19/16
20160141772 
 Terminal table and terminal table unit patent thumbnailTerminal table and terminal table unit
Provided are a terminal table and a terminal table unit allowing a plurality of busbars to be connected certainly and easily with reactor busbars of reactor securing members that are connected with reactors included in reactor units having an error. A sensor terminal table 30 includes a plurality of sensor busbars 40 and a sensor-attached holding body holding the plurality of sensor busbars 40.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141707 
 Method and components for repairing a ceramic fuel cell stack assembly patent thumbnailMethod and components for repairing a ceramic fuel cell stack assembly
There is disclosed a method and components for repairing a fuel cell stack. In particular, the method and components relate to repairing a high temperature fuel cell stack incorporating ceramic components.
Lg Fuel Cell Systems Inc.


05/19/16
20160141706 
 Components and methods for manufacture and assembly of a fuel cell stack patent thumbnailComponents and methods for manufacture and assembly of a fuel cell stack
A fuel cell stack which is amenable to simple manufacturing processes and is thermally and mechanically compliant. The fuel cell stack reduces the number of components by combing fuel cell tubes to form tube sub-assemblies, the tube sub-assemblies comprising end fittings connected to the fuel cell tubes, the end fittings provided with at least one or preferably a plurality of channels to provide equal distribution of fuel throughout the fuel cell tubes..
Lg Fuel Cell Systems Inc.


05/19/16
20160141705 
 Fuel cell stack assembly patent thumbnailFuel cell stack assembly
There is provided a fuel cell stack assembly being thermally and mechanically compliant. The fuel cell stack comprises fuel feed pipe and fuel outlet pipe, a plurality of bundles of fuel cell tube sub-assemblies, the bundles being separated by an expansion gap to prevent thermal and mechanical stresses propagating from one bundle to an adjacent bundle..
Lg Fuel Cell Systems Inc.


05/19/16
20160141704 
 Manifold block assembly for fuel cell vehicles patent thumbnailManifold block assembly for fuel cell vehicles
A manifold block assembly for a fuel cell vehicle mounted on a fuel cell stack and supplying air and hydrogen to the stack, includes a manifold block in which a hydrogen discharge path connected to a hydrogen line formed in the stack, an air discharge path connected to an air line formed in the stack, and a watertight bulkhead are integrally formed with each other. The manifold block assembly further includes a hydrogen inflow pipe configured to be attached to the manifold block and connected to the hydrogen line formed in the stack.
Kia Motors Corporation


05/19/16
20160141703 
 Fuel cell case patent thumbnailFuel cell case
A fuel cell case that is configured to place a fuel cell therein, the fuel cell case includes: a first member including a bottom surface of the fuel cell case; and a second member fixed to an outer circumferential portion of the first member using a fastener, wherein a gasket seals between the first member and the second member, and the first member includes a rib, wherein the rib is positioned on an inner circumferential side of a portion where the first member comes into contact, with the gasket and is protruded upward from a surface where the first member comes into contact with the gasket.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141702 
 Method of manufacturing fuel cell case patent thumbnailMethod of manufacturing fuel cell case
To reduce a manufacturing cost on anodization in an aluminum-type fuel cell case, a method of manufacturing a fuel cell case made of one of aluminum and aluminum alloy and for accommodating a fuel cell is provided, which includes forming, in a fuel cell case, through-holes for receiving pins when the fuel cell case is mounted on a vehicle, and forming alumite on a surface of the fuel cell case by anodizing the surface using the through-hole as a contact.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141701 

Fuel cell device


A fuel cell device includes a fuel cell body, a case and a pin having one end contacting a part of the fuel cell body. A through hole is formed in the case.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141700 

Fuel cell module


A fuel cell module includes a fuel cell and a case housing the fuel cell. The fuel cell includes a cell stack and a pressure plate arranged at an outermost position of a stacking direction relative to the cell stack.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141696 

Electrolyte solution and producing same, continuously dissolving facility, electrolyte membrane, electrode catalyst layer, membrane electrode assembly and fuel cell


A method for producing an electrolyte solution including a supply step of continuously supplying an emulsion based a polymer electrolyte and a solvent into a dissolution facility, and a dissolution step of continuously dissolving the polymer electrolyte in the solvent by heating the interior of the dissolution facility to obtain the electrolyte solution.. .
Daikin Industries, Ltd.


05/19/16
20160141695 

Membrane electrode assembly and fuel cell


An object is to prevent an increase in overall thickness of a membrane electrode assembly. There is provided a membrane electrode assembly.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141693 

Gas liquid separator and fuel cell system


The gas liquid separator comprises a gas liquid separator-forming portion formed in an end plate of a fuel cell to have an opening at an end face of the end plate and that constitutes part of the gas liquid separator; and a cover member located to cover the opening and is combined with the gas liquid separator-forming portion to constitute the gas liquid separator. The gas liquid separator-forming portion includes a first inner wall portion provided to serve as a flow path of the off-gas and form part of a reservoir and that is configured to include an off-gas outlet, to be connected with the opening and to be formed concave in a thickness direction of the end plate; and a surrounding portion protruded from the first inner wall portion along a first direction from the gas liquid separator-forming portion toward the cover member to surround the off-gas outlet..
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141692 

Improved fuel cell systems and methods


The present invention is concerned with improved fuel cell systems and methods. The present invention provides an intermediate-temperature solid oxide fuel cell (it-sofc) system comprising: (i) at least one fuel cell stack comprising at least one intermediate-temperature solid oxide fuel cell, and having an anode inlet, a cathode inlet, an anode off-gas outlet, a cathode off-gas outlet, and defining separate flow paths for flow of anode inlet gas, cathode inlet gas, anode off-gas and cathode off-gas; and (ii) a steam reformer for reforming a hydrocarbon fuel to a reformate, and having a reformer inlet for anode inlet gas, a reformer outlet for exhausting anode inlet gas, and a reformer heat exchanger; and defining: (a) an anode inlet gas fluid flow path from a fuel source to said steam reformer to said at least one fuel cell stack anode inlet; (b) an anode off-gas fluid flow path from said at least one fuel cell stack anode off-gas outlet to a fuel cell system exhaust; (c) a cathode inlet gas fluid flow path from an at least one oxidant inlet to said reformer heat exchanger to said at least one fuel cell stack cathode inlet; and (d) a cathode off-gas fluid flow path from said at least one fuel cell stack cathode off-gas outlet to said fuel cell system exhaust; wherein said reformer heat exchanger is a parallel-flow heat exchanger in fluid flow communication with (i) said at least one oxidant inlet and said at least one fuel cell stack cathode inlet, and (ii) said fuel source and said at least one fuel cell stack anode inlet, and is arranged for exchanging heat between said cathode inlet gas and said anode inlet gas..
Ceres Intellectual Property Company Limited


05/19/16
20160141691 

Fuel cell system


Where tfilt represents the temperature correction value, tfilt_old represents a last temperature correction value, t represents the temperature of the coolant, and τ represents a coefficient, and the coefficient when the temperature of the coolant is less than a first predetermined value is set to be greater than the coefficient when the temperature of the coolant is equal to or greater than a second predetermined value.. .

05/19/16
20160141690 

Fuel cell system and control method thereof


An object is to suppress drying of a fuel cell during continuous operation with high load. There is provided a fuel cell system including a fuel cell.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141689 

Fuel cell system and fuel cell control method


A fuel cell system comprising: a power generation controller that controls a value subject to control, which is a value exhibiting a power generating state by a fuel cell and is a value that is affected by alternating current applied to the fuel cell, to approach a target value; a dead zone setter that sets a dead zone with the target value as a reference; and, a stopper that stops the control by the power generation controller when the value subject to control is contained in the dead zone.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141688 

Fuel cell system and dryness degree acquisition method


A fuel cell system, comprising: a measurer that measures an impedance of the fuel cell; a controller that controls an operation state of the fuel cell; and an acquirer that acquires a dryness degree of the fuel cell from the measured impedance when the operation state is a first operation state, and acquires the dryness degree of the fuel cell as a wet state when the operation state is a second operation state in which a water balance is more than the first operation state.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141687 

Fuel cell system, fuel cell-mounted vehicle and controlling fuel system


When a first timing at which a fuel gas is injected to a fuel gas supply flow path by an injector and a second timing at which water residing on a circulation flow path is discharged by controlling rotating speed of a circulation pump coincide with each other, a controller performs either: (i) a first process of operating the circulation pump at a preset rpm without injecting the fuel gas to the fuel gas supply flow path by the injector; or (ii) a second process of injecting the fuel gas to the fuel gas supply flow path by the injector and operating the circulation pump at an rpm lower than the preset rpm.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141686 

Fuel cell system


The present invention provides a fuel cell system capable of suppressing the accumulation of impurities in a hydrogen system even when a hydrogen pump stops. A fuel cell system 100 includes a hydrogen pump 4, which is provided in a hydrogen gas circulation flow path 3 and which circulates a hydrogen off-gas discharged from the outlet side of a hydrogen electrode 1a of a fuel cell 1 to the inlet side of the hydrogen electrode 1a, a discharge valve 61, through which the hydrogen off-gas flowing in the hydrogen gas circulation flow path 3 is discharged out of the hydrogen gas circulation flow path 3, a determination section 81, which determines whether the hydrogen pump 4 is stopped, and a control unit 80, which controls the opening/closing of the discharge valve 61.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141685 

Fuel cell system and control fuel cell system


An objection is to provide a technology by which a decline in the starting performance of a fuel cell system may be controlled in a low-temperature environment. A control method of a fuel cell system includes a temperature acquisition step of acquiring a temperature of the fuel cell at start-up of the fuel cell; and an exhaust gas control step of restricting, when the temperature of the fuel cell is below a predetermined value, a flow rate of an exhaust gas flowing into a flow path configuring portion that configures at least a part of a flow path of the exhaust gas of the fuel cell as compared to the flow rate of the exhaust gas flowing into the flow path configuring portion when the temperature of the fuel cell is equal to or less than the predetermined value..
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141684 

Control flow regulating valve of oxidizing gas and flow regulation device


There is provided a control method of a flow regulating valve of an oxidizing gas in a fuel cell. In a load disconnected state that the fuel cell is electrically disconnected from a load, the control method gradually opens the flow regulating valve that is configured to supply the oxidizing gas to a cathode of the fuel cell by a predetermined valve opening each time from a full-close position or gradually closes the flow regulating valve by a predetermined valve opening each time from a full-open position, so as to gradually change a supply amount of the oxidizing gas introduced to the cathode and cause hydrogen transmitted from an anode to the cathode in the fuel cell to be oxidized.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141683 

Fuel cell system, movable body, and control method


In a fuel cell system which is able to be mounted on a movable body, it is determined whether or not the movement of the movable body is stopped and the fuel cell system is operated when an opening instruction for opening a filling port for filling a fuel gas storage portion with fuel gas is received. When it is determined that the movement of the movable body is stopped and the fuel cell system is operated, a main stop valve controlling the supply of the fuel gas to the cell stack from the fuel gas storage portion is closed, and then the filling port is opened..

05/19/16
20160141682 

Power supply system and voltage control fuel cell


An object is to maintain the voltage of a fuel cell at a desired voltage level and suppress a voltage variation, even in the case of a low load request. A power supply system including a fuel cell causes at least part of a required electric power to be supplied from the fuel cell in an ordinary load state.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141681 

Fuel cell system, fuel cell vehicle, and controlling fuel cell system


A fuel cell system installed in a vehicle includes a fuel cell that supplies power to a motor that drives the vehicle, a pump that supplies oxygen to the fuel cell, an accelerator position detector that detects an accelerator depression amount of the vehicle, and a controller that calculates required generated power of the fuel cell and required driving power of the pump, based on the accelerator depression amount. When a preset condition of causing a sharp drop in the calculated required generated power is satisfied, the controller calculates the required driving power in such a mariner that a drop rate of the required driving power becomes higher than a drop rate of the calculated required generated power, sets a lower limit to the calculated required driving power, and drives the pump in accordance with the lower limit when the required driving power is lower than the lower limit..
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141680 

Fuel cell system


A fuel cell system includes a control unit configured to perform air-conditioning-system preparation control, wherein, under the air-conditioning-system preparation control, when an air conditioning system is not requested to heat air, it is determined whether or not a coolant within a coolant circulation passage is capable of being supplied to an air conditioning circuit, when the coolant within the coolant circulation passage is not capable of being supplied to the air conditioning circuit, the heater is operated to maintain a first predetermined temperature or higher of the coolant within the air conditioning circuit, and when the coolant within the coolant circulation passage is capable of being supplied to the air conditioning circuit, the air-conditioning water pump is operated to draw the coolant from the coolant circulation passage into the air conditioning circuit and to maintain the first predetermined temperature or higher of the coolant within the air conditioning circuit.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141679 

Fuel cell system, fuel cell mountable vehicle and controlling fuel cell system


A fuel cell system comprises: a fuel cell; a cooling liquid supply flow path for supplying cooling liquid to the fuel cell; a radiator for cooling the cooling liquid; a first temperature sensor, provided at an outlet of the radiator, for measuring a temperature of the cooling liquid; an ambient temperature sensor; and a controller. The controller executes: estimating a temperature of the cooling liquid inside the cooling liquid supply flow path based on an ambient temperature measured by the ambient temperature sensor; acquiring a temperature of the cooling liquid inside the cooling liquid supply flow path based on the temperature measured by the first temperature sensor after it is determined that the cooling liquid within the radiator has reached the first temperature sensor; and adjusting a flow rate of the cooling liquid based on the estimated temperature or the acquired temperature of the cooling liquid..
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141678 

Fuel cell system and a detecting a hydrogen gas leak


The fuel cell system is provided with the hydrogen gas circulation system that supplies hydrogen gas to the fuel cell while merging the hydrogen gas discharged from the fuel cell with the newly supplied hydrogen gas, a hydrogen gas supply valve that controls the amount of hydrogen gas supplied to the hydrogen gas circulation system, an initial pressurization unit that pressurizes the hydrogen gas circulation system by temporarily opening the hydrogen gas supply valve at the start of the fuel cell, and a re-pressurization and gas leak detection unit that re-pressurizes the hydrogen gas circulation system by opening the hydrogen gas supply valve when a given level of pressure drop is found in the pressure detected by the pressure detection unit after the pressurization by the initial pressurization unit and detects a hydrogen gas leak from the hydrogen gas circulation system based on the pressure detected by the pressure detection unit in a given timing after the pressurization.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141677 

Method of detecting leakage of reactive gas of fuel cell and fuel cell system


To provide a technique that allows prompt detection of leakage of fuel gas in a fuel cell system. A controller included in a fuel cell system performs a hydrogen leakage detecting process of detecting the occurrence of hydrogen leakage in the low-pressure zone based on the detected pressure in a low-pressure zone of an anode gas piping at a time of start-up of the fuel cell system.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141676 

Fuel cell system and control fuel cell system


An object is to provide a technique that a current state of a fuel cell may be detected more accurately. A fuel cell system includes a controller, a fuel cell, and an impedance measurer that may measure an impedance of the fuel cell.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141675 

Fuel cell system and operation control the same


A controller updates a lower limit voltage threshold in accordance with the restoration of an fc voltage until the operation status is restored to a normal operation from an operation having low power generation efficiency, such as an intermittent operation and a warmup operation (step s1). The controller increases an fc current in accordance with the updated lower limit voltage threshold (steps s2 and s3) to thereby satisfy both the requirements of the restoration of the output voltage of the fuel cell stack and the improvement of the electric power responsiveness..

05/19/16
20160141674 

Fuel cell system and recoverying cell voltage thereof


An amount of power generation is increased in the case where a difference in water content between some and others of the cells is greater than a predetermined value. In the case of satisfaction of a first condition that the difference in water content between some and others of the cells is greater than the predetermined value, a fuel battery may be caused to perform an operation in which the amount of power generation exceeds that in the normal operation to reduce a cell voltage difference Δv between an average cell voltage va and a minimum cell voltage vb.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141673 

Fuel cell system, fuel cell vehicle, and control fuel cell system


A fuel cell system mounted in a vehicle includes a fuel cell supplying electric power to a motor driving the vehicle, a pump supplying oxygen to the fuel cell, an accelerator position detection unit detecting an accelerator depression amount of the vehicle, and a control unit calculating electric power required to be generated by the fuel cell and electric power required for driving of the pump based on the accelerator depression amount and controlling the pump based on the electric power required for the driving, in which the control unit calculates the electric power required for the driving such that a rate of increase in the electric power required for the driving exceeds a rate of increase in the electric power required to be generated when the calculated electric power required to be generated increases.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141672 

Fuel cell discharging fluid in the system


There is provided a fuel cell system, wherein a controller configured to set the flow volume of a fluid in an anode flow path at an outlet of an anode of the fuel cell to a first flow volume, then set thereafter the flow volume of the fluid in the anode flow path at the outlet of the anode to a second flow volume which is smaller than the first flow volume, and discharge the water in the hydrogen discharge flow path by opening an exhaust and drain valve while the fluid is flowing at the second flow volume.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141671 

Water drainage device for fuel cell, fuel cell system, moving body and control fuel cell system


An object is to provide a technique that suppresses excessive water drainage from a fuel cell. A water drainage device for fuel cell that drains water from inside of a fuel cell, includes: a purge gas supply system; an operation unit; a water drainage controller; and a water content acquirer.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141670 

Fuel cell system and control the same


A fuel cell system 10 includes a fuel cell 20, gas supply systems 30, 40, which supply gases to the fuel cell 20, and a controller 60, which controls the gas supply systems 30, 40. During a non-operation period of the fuel cell 20, the controller 60 controls the gas supply systems 30, 40 to carry out the scavenging treatment.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141668 

Fuel cell system and start-up method thereof


The present disclosure provides a fuel cell system which comprises: a target output reaching time estimation unit configured to estimate a target output reaching time that requires for a fuel cell after start-up at a below-freezing temperature to become capable of providing an expected output desired or expected by a user of the fuel cell system or a predetermined output according to the expected output, based on the water content in the fuel cell and the temperature inside the fuel cell at the time of start-up at a below-freezing temperature; and a target output reaching time notification unit that notifies the user of the time estimated by the target output reaching time estimation unit.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141667 

Fuel cell system and operation control the same


A controller 70 multiplies a voltage command value vcom obtained in step s3 by a current command value icom obtained in step s1, then, this is divided by a final voltage command value vfcom obtained in step s4, thereby obtaining a final current command value ifcom to determine an operating point (ifcom, vfcom) during a warm-up operation (step s5), and then the process ends.. .

05/19/16
20160141666 

System for controlling low-temperature starting of fuel cell vehicle and the same


A system for controlling low-temperature starting of a fuel cell vehicle includes a high-pressure hydrogen flow control valve controlling a flow of hydrogen supplied to a fuel cell stack. A fuel cell controller is configured to change and control an opening rate of the high-pressure hydrogen flow control valve when an internal temperature of the fuel cell stack is a reference value or less.
Hyundai Motor Company


05/19/16
20160141665 

Fuel cell system and fuel cell system control method


To provide technology that is capable of inhibiting a decrease in starting properties of a pump in a low-temperature environment. A fuel cell system is equipped with a control unit, a fuel cell, and a pump.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141664 

Fuel cell system


A plurality of high voltage unit controllers each includes: a monitoring unit that monitors the hard shutdown signal sent through the dedicated wire lines; and a shutdown unit that, based on a monitoring result of the monitoring unit, stops operation of the high voltage unit that is under control of this high voltage unit controller, and further stops at least part of control functions of this high voltage unit controller.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141663 

Method of controlling air flow in fuel cell


The present disclosure relates to a method of controlling an air flow in a fuel cell, capable of periodically supplying air to a cathode and alleviating a rate at which a hydrogen concentration of an anode is decreased in an idle stop state in which air supply to the cathode of a stack is stopped in order to suppress dry phenomenon of the fuel cell.. .
Hyundai Motor Company


05/19/16
20160141662 

Fuel cell and fuel cell system


An object is to suppress interference with the flow of a reactive gas or an off-gas in a fuel cell. There is provided a fuel cell comprising a stacked body that includes at least a power generation body configured by stacking a plurality of unit cells; and an end plate that is placed on at least one end in a stacking direction of the stacked body.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141661 

Air processing system of fuel cell vehicle mounted with integrated valve


An air processing system of a fuel cell vehicle mounted with an integrated valve includes: the integrated valve attached to an air inlet and an air outlet formed integrally with a fuel cell stack and adjusting amounts of air introduced into and discharged from the fuel cell stack. The integrated valve is positioned at the shortest distance from the fuel cell stack, such that an amount of remaining oxygen that is to be consumed at the time of stopping start of a fuel cell vehicle is minimized.
Hyundai Motor Company


05/19/16
20160141660 

Fuel cell system and control method therefor


A fuel cell system includes: a fuel cell; an anode gas supply flow path for supplying an anode gas to the fuel cell; an anode gas discharge flow path for discharging an anode off gas from the fuel cell; an anode gas circulation flow path for connecting the anode gas supply flow path and the anode gas discharge flow path to each other; a circulation device provided on the anode gas circulation flow path and serving for supplying the anode off gas to the anode gas supply flow path; and a controller. When liquid water is residing in the circulation device, the controller controls a circulation flow rate of the circulation device to discharge the liquid water residing in the circulation device.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141659 

Fuel cell system


A fuel cell system includes a control unit that estimates a discharge amount of the fuel gas partially discharged from the fuel cell partially discharged during an opening period of the discharge valve based on a lost amount of the fuel gas during the opening period and a consumed amount of the fuel gas by electric generation of the fuel cell during the opening period, wherein a pressure increase period during which the pressure increases and a pressure decrease period during which the pressure decreases exist due to intermittent injection of the fuel gas, and the control unit estimates the lost amount of the fuel gas based on a decrease rate of the pressure during the pressure decrease period within the opening period, and based on an assumed decrease rate of the pressure during the pressure increase period within the opening period.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141658 

Gas-liquid separator and fuel cell system


A gas-liquid separator includes a gas-liquid separator forming portion that is provided in an end plate, and a cover member. The gas-liquid separator forming portion includes a first inner wall portion that serves as a flow path for an off-gas and forms a part of an accumulating portion, the first inner wall portion having a shape recessed in a thickness direction of the end plate.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141657 

Fuel cell system


A fuel cell system includes a fuel cell for causing electrochemical reactions of anode gas and cathode gas, a fuel cell system case accommodating the fuel cell, and a frame disposed below the fuel cell system case and fixing the fuel cell system case. A rib is provided on an upper surface of the frame.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141656 

Fuel cell system and control method therefor


There are provided a an anode-side water discharge controller that controls a circulation flow rate of the anode gas pump so as to discharge anode-side liquid water residing in the anode-side flow path, and a cathode-side water discharge controller that controls a supply flow rate of the cathode gas pump so as to discharge cathode-side liquid water residing in the cathode-side flow path. The anode-side water discharge controller and the cathode-side water discharge controller execute water discharge by running a pre-selected one of the anode gas pump and the cathode gas pump, and then running the other of the anode gas pump and the cathode gas pump..
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141655 

Method of discharging water from fuel cell and fuel cell system


A method of discharging water from a mobile object, which includes a fuel cell, a gas-liquid separator, and a circulation pump, comprises: an inclined state detection step of detecting an inclined state of the mobile object with respect to a horizontal plane; a scavenging start step of starting to supply scavenging gas at a predetermined first supply flow rate to a gas flow path in the fuel cell, by driving the circulation pump; and a supply flow rate increase step of increasing, when the mobile object is in a predetermined inclined state in which an outlet of the gas flow path is directed upward against a direction of gravity, a rotational speed of the circulation pump so that the supply flow rate of the scavenging gas is increased to a second supply flow rate higher than the first supply flow rate after a predetermined period from starting to supply the scavenging gas.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141654 

Fuel cell system and air system abnormality determination method


An object is to allow even a temporary increase in air pressure to be diagnosed as an abnormality. There is provided a fuel cell system including a fuel cell.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141653 

Method and arrangement for utilizing recirculation for high temperature fuel cell system


An arrangement utilizing recirculation for high temperature fuel cell system, each fuel cell including an anode side, a cathode side, and an electrolyte between the anode side and the cathode side, wherein the fuel cell system can perform anode side recirculation flow of reactants. The arrangement can accomplish a recycle ratio of 70% or more for the recirculation flow, feed to the recirculation a feed-in flow, which can include substantially high oxygen content, the feed-in flow being 30% or less of entire flow, perform heat exchanging to provide substantially reduced low temperature conditions in the recirculation flow, perform catalytic partial oxidation in the recirculation flow to produce a substantially high amount of hydrogen for the recirculation flow in fuel cell system start-up or shutdown situations, and exhaust 30% or less of the entire flow from the anode side recirculation..
Convion Oy


05/19/16
20160141652 

Fuel cell system


A fuel cell system, includes: a fuel cell stack that is formed by stacking fuel cells for causing electrochemical reaction of a fuel gas and an oxidizing gas; a fuel gas supply system that is configured to supply the fuel gas to the fuel cell stack from a supply source of the fuel gas; a fuel gas recirculating system that is configured to resupply to the fuel cell stack the fuel gas discharged from the fuel cell stack; and a piping member is configured to connect a junction between the fuel gas supply system and the fuel gas recirculating system with the supply source, the piping member having a bent portion that is curved such that a supply direction of the fuel gas from the supply source is reverse to a flowing direction of the fuel gas toward the junction.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141651 

Fuel cell system and fuel cell system control method


A fuel cell system includes a fuel cell containing a unit cell with an anode and a cathode included therein, a hydrogen supply unit that supplies hydrogen gas to the anode, a circulation pump that supplies an anode exhaust gas containing hydrogen that has not been used for power generation by the fuel cell and is discharged from the anode, once again to the anode to circulate the anode exhaust gas, and a controller that controls supply quantity of the hydrogen gas by the hydrogen supply unit as well as rotating speed of the circulation pump. The controller drives the circulation pump so that the rotating speed of the circulation pump approaches an optimum rotating speed of the circulation pump at which a total hydrogen loss quantity becomes a minimum under a specified current value, the total hydrogen loss quantity being a sum of a hydrogen quantity corresponding to an electric power necessary for driving the circulation pump and a hydrogen quantity passing from anode side to cathode side of the fuel cell..
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141650 

Fuel cell system


A fuel cell system includes: a fuel cell; a fuel gas path supplied with fuel and allowing a part of fuel gas discharged from the fuel cell to circulate; an exhaust mechanism discharging the reacted fuel gas to an outside; a circulation mechanism circulating the fuel gas; and a control unit configured to temporarily stop circulation of the fuel gas by the circulation mechanism when determining that discharge from the exhaust mechanism is not normal, drive the circulation mechanism so that the fuel gas circulates at a first circulation speed when determining that the discharge is not normal and a parameter relating to water vapor in the fuel gas path is equal to a predetermined value or greater, and drive the circulation mechanism so that the fuel gas circulates at a second circulation speed greater than the first circulation speed when determining that the discharge is normal.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141649 

Device and supplying a fuel cell battery


A device in which an environmental air flow is monitored by a monitoring element and in which a natural gas flow is interrupted by a shut-off element on recognition of an insufficient environmental air flow. To allow a continuous operation of the fuel cell battery the monitoring element is short-circuited by a bridging device and that its operability can thus be checked without the environmental air flow having to be interrupted.
Hexis Ag


05/19/16
20160141648 

Coolant purification


A fuel cell system comprises an antimicrobial patterned surface. The fuel cell system may comprise a fuel cell stack, a coolant reservoir, and a coolant flow path configured to supply coolant from the coolant reservoir to the fuel cell stack.
Intelligent Energy Limited


05/19/16
20160141647 

Fuel cell system and control fuel cell system


The present invention is to prevent the temperature of an electric heater from being higher than or equal to a temperature at which control to reduce power consumption is started to prevent an abrupt decrease in the power consumption of the electric heater in order to secure a power consuming destination of a fuel cell. A fuel cell system 10 includes: a fuel cell 20 that receives the supply of reactant gas to generate power; a fuel cell cooling system 30 for circulating a coolant through the fuel cell 20 to cool the fuel cell 20; an electric heater 40 operated to consume power of the fuel cell 20 and driven to decrease power consumption abruptly at a temperature lower than a decomposition temperature of the coolant; and a heater cooling system 50 for circulating the coolant around the electric heater 40 to cool the electric heater 40.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141646 

Fuel cell vehicle coolant having improved storage stability and producing the same


There are provided a stock solution composition for fuel cell vehicle coolant used by dilution with a diluent comprising water and a method for producing the same, and further a fuel cell vehicle coolant composition having improved storage stability and a method for producing the same. The present invention relates to a method for producing a stock solution composition for fuel cell vehicle coolant, wherein the stock solution composition comprises at least one ethylene glycol compound selected from the group consisting of ethylene glycol, diethylene glycol, and triethylene glycol, and is used by dilution with a diluent comprising water, and the method comprises the following steps: (a) a step of selecting as a raw material an ethylene glycol compound having an ethylene glycol monoformate content of 60 ppm or less; or (b) a step of selecting as a raw material an ethylene glycol compound, wherein a 50% by mass aqueous solution of the ethylene glycol compound has a conductivity of 4.5 μs/cm or less after heating..
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141645 

Fuel cell system, fuel cell vehicle and control fuel cell system


A fuel cell system comprises: a fuel cell; a cooling system circuit including a cooling liquid supply path configured to supply a cooling liquid to the fuel cell, a radiator configured to cool down the cooling liquid, a radiator fan, and a cooling liquid pump provided in the cooling liquid supply path to feed the cooling liquid to the fuel cell; a controller; and a speedometer configured to obtain a speed of the fuel cell vehicle, wherein the controller is capable of performing a first cooling control that sets an upper limit value of driving amount of the radiator fan according to the speed of the fuel cell vehicle and regulates a flow rate of the cooling liquid pump or the driving amount of the radiator fan under the upper limit value of the driving amount of the radiator, so as to cool down the fuel cell.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141644 

Fuel cell system


An object is to provide a technique that removes a liquid entering between an auxiliary machinery cover and a cover provided to cover the auxiliary machinery cover. A fuel cell system comprises a first cover that is configured to contain an auxiliary machine for a fuel cell, and a second cover that is configured to cover at least part of a side surface and part of a bottom surface of the first cover.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141643 

Deformation absorption member and fuel cell


A deformation absorption member for a fuel-cell-stack disposed between an anode side separator and a cathode side separator. The deformation absorption member includes a thin-board-like base material, and a plurality of raised pieces in which extension portions extended from proximal ends are arranged in a grid pattern.
Nhk Spring Co., Ltd.


05/19/16
20160141642 

Fuel cell subassemblies incorporating subgasketed thrifted membranes


An automated roll to roll method of making a fuel cell roll good subassembly is described wherein an elongated first subgasket web having a plurality of apertures is moved relative to a plurality of individual electrolyte membranes, each individual electrolyte membrane having a center region. The individual electrolyte membranes are aligned with the first subgasket web so that a center region of each electrolyte membrane is aligned with an aperture of the first subgasket web and the individual electrolyte membranes are attached to the first subgasket web..
3m Innovative Properties Company


05/19/16
20160141641 

Fuel cell system


A fuel cell system includes: a fuel cell that causes electrochemical reaction of an anode gas and a cathode gas; a plurality of auxiliary machines that are used for operation of the fuel cell; and a fuel cell system case that is configured to place the fuel cell and the plurality of auxiliary machines therein, wherein, in the fuel cell system case, a surface from which a first cable harness including first electric wire used for supplying electric power to the plurality of auxiliary machines is taken out differs from a surface from which a second cable harness including second electric wire for supplying larger electric power than the electric power of the first electric wire is taken out.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141640 

Fuel cell system


A fuel cell system mounted on a vehicle, includes: a fuel cell configured to cause electrochemical reaction between an anode gas and a cathode gas to proceed; and a fuel cell casing that is configured to place the fuel cell therein, wherein the fuel cell casing has a bottom face that is formed in an approximately rectangular shape, the fuel cell casing is positioned such that longitudinal sides of the approximately rectangular shape are parallel to a left-right direction of the vehicle, and the bottom face has a rib that is extended only in a front-back direction of the vehicle is provided on the bottom face.. .
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141639 

Fuel cell


In a fuel cell, a cathode passage extends from an oxidizing gas supply hole to an oxidizing gas discharge hole. A turn interval at which a flow direction of an oxidizing gas returns to an original direction in an upstream-side passage region is different from the turn interval in a downstream-side passage region.
Toyota Jidosha Kabushiki Kaisha


05/19/16
20160141638 

Terminal plate for fuel cell, and fuel cell


There is provided a terminal plate comprising a plate stacked body including a first metal plate that is electrically conductive and has a current collecting terminal for power collection, and second metal plates that have higher corrosion resistance than the first metal plate and are placed across the first metal plate. A first gasket is mounted to the second metal plate and is provided to surround at least a gas flow hole used for supply of a gas on the second metal plate-side.
Sumitomo Riko Company Limited


05/19/16
20160141637 

Fuel cell separator, fuel cell current collector plate, fuel cell and fuel cell stack


A separator used in a fuel cell is provided, the separator including: a separator main body that includes a fluid flow region through which a reactive gas or a coolant flows, a through-hole through which the reactive gas or the coolant flows, and a connection portion which connects the fluid flow region and the through-hole; and a flow rectifying portion that is arranged by being adhered on the connection portion and that rectifies flow of the reactive gas or the coolant between the fluid flow region and the through-hole, where the flow rectifying portion includes a plurality of protruded portions and a coupling portion which is thinner than the protruded portions and which couples the protruded portions.. .

05/19/16
20160141636 

Separator for fuel cell, fuel cell, and manufacturing separator


A separator for a fuel cell, to be disposed opposing to a membrane electrode assembly, is provided. The separator includes a separator central area portion opposing to a center area of the membrane electrode assembly that concerns generating power, an outer edge portion located in an outer edge of the separator central area portion, a rubber molded body made of rubber, the rubber molded body being formed in the outer edge portion by die-casting a die-casting rubber material using die, and an adhesive layer formed in the outer edge portion, for adhering the rubber molded body to the outer edge portion.
Sumitomo Riko Company Limited


05/19/16
20160141635 

Flat member for fuel cell and manufacturing flat member


To achieve a flat member for fuel cells in which the grain size of titanium is optimized to suppress local elongation and to reduce the siding distance to a punching die, enabling a reduction in ablation of the punching die. The flat member for fuel cells is an expand passage 10a or a separator 10b, and punched out portions 13, 14 are formed in the flat member by, for example, punch pressing.
Toyota Boshoku Kabushiki Kaisha


05/19/16
20160141634 

Separator for fuel cell


The separator for a fuel cell includes a terminal attachment portion which is disposed in a region other than a power generation region engaged in power generation of a separator, and to which a cell monitor terminal capable of detecting the voltage of the single cell is connected, and a conductive carbon thin film layer which is formed on the terminal attachment portion, and the hardness of the carbon thin film layer is greater than or equal to 5 gpa and less than or equal to 10 gpa.. .

05/19/16
20160141633 

Fuel cell stack


The fuel cell stack formed by arranging a terminal on both ends of a cell stacked body in which a plurality of cells including a membrane electrode assembly and separators interposing the membrane electrode assembly therebetween is stacked, includes a rust preventive plate which is arranged between a metal separator and a positive electrode terminal on a high potential side of the cell stacked body, and includes a material more noble than that of the separator in the surface.. .

05/19/16
20160141632 

Catalyst property control with intermixed inorganics


Nanostructured thin film catalysts which may be useful as fuel cell catalysts are provided, the catalyst materials including intermixed inorganic materials. In some embodiments the nanostructured thin film catalysts may include catalyst materials according to the formula ptxm(1-x) where x is between 0.3 and 0.9 and m is nb, bi, re, hf, cu or zr.
3m Innovative Properties Company


05/19/16
20160141603 

Potato-shaped graphite particles with low impurity rate at the surface, preparing the same


These particles can be used for fuel cells, electrochemical generators, or as moisture absorbers and/or oxygen absorbers and they have important electrochemical properties. The electrochemical cells and batteries thus obtained are stable and safe..





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