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US20130059221 FUEL CELL SYSTEM AND HEATING METHOD BY USING HEAT FROM FUEL CELL  
A fuel cell system includes: a fuel cell configured to have a cell stack obtained by stacking a plurality of cells; a heat exchanger located in a middle position in a stacking direction of the...
US20110177415 VOLTAGE-BASED FLUID SENSOR FOR A FUEL CELL STACK ASSEMBLY  
A fluid detection system and method is disclosed having sensor elements 66 comprising wire leads 68 and electrodes 74 electrically insulated from the stack 16, and positioned such that a...
US20120225366 IDENTIFYING FUEL CELL DEFECTS  
A test system for testing a unit such as multiple solid oxide fuel cells. The test system includes a thermal test chamber in which a non-contact electrostatic voltage probe is mounted to scan the...
US20060216560 Fuel cell systems  
A fuel cell system wherein system components are arranged to facilitate the transfer of heat from those components which generate heat in operation to those which cool in operation.
US20120045705 FUEL CELL SYSTEM  
A fuel cell system includes a first power generation module configured to have a power generation assembly including a catalyst, an anode-side non-power generation structure placed in contact with...
US20150099203 ELECTRONIC EQUIPMENT PROVIDED WITH BATTERY CHECK DEVICE  
Immediately after a main switch is turned ON, a battery check is performed based on a second inhibit voltage LVL2 higher than a first reference voltage LVL1 which is an inhibit voltage level a...
US20110091783 ELECTRONIC EQUIPMENT PROVIDED WITH BATTERY CHECK DEVICE  
Immediately after a main switch is turned ON, a battery check is performed based on a second inhibit voltage LVL2 higher than a first reference voltage LVL1 which is an inhibit voltage level a...
US20150249280 Fuel Cell System to Power a Portable Computing Device  
The disclosed embodiments relate to the design of a portable and cost-effective fuel cell system for a portable computing device. This fuel cell system includes a fuel cell stack which converts...
US20140363751 HEALTH MONITORING OF AN ELECTROCHEMICAL CELL STACK  
The present disclosure is directed towards a method and a system for monitoring the performance of an electrochemical cell stack. Monitoring can be performed remotely by measuring the voltage...
US20060172164 Fuel cell and fuel cell system  
A fuel cell system has a fuel cell stack, a controller, and a cooling water channel. The controller executes the control for the temperature of cooling water flowing through the cooling water...
US20120321976 CONTROLLING FUEL CELL  
A fuel cell system has a fuel cell that includes at least one cell with an electrolyte membrane, an index value acquirer and a controller. The index value acquirer obtains a temperature index...
US20120189876 FUEL CELL PURGE SYSTEM  
A fuel cell purge system including a fuel cell assembly, a fuel supply that supplies fuel to the fuel cell assembly at a first flow rate, an adjustable load that applies a load on the fuel cell...
US20060021812 Fuel cell vehicle and control method thereof  
A fuel cell vehicle includes a fuel cell, a rotating load, a energy storage, a contactor, a DC-DC converter, and a control unit. When regeneration by the energy storage is performed, the DC-DC...
US20130216927 Methods and Systems for Fuel Cell Stack Sintering and Conditioning  
Systems and methods for sintering and conditioning fuel cell stacks utilizing channel guides, baffles, and internal compression systems are provided. Sintering and conditioning may be performed...
US20120156581 SYSTEM AND METHOD FOR OPERATING A HIGH TEMPERATURE FUEL CELL AS A BACK-UP POWER SUPPLY WITH REDUCED PERFORMANCE DECAY  
A method is provided for reducing degradation in a fuel cell assembly, including at least one fuel cell with a PBI membrane, during standby, operation. The method may include electrochemically...
US20140186735 METHOD OF OPERATING FUEL CELL SYSTEM  
A method of operating a fuel cell system includes calculating voltages that are generated in each cell of a stack. It is determined whether the voltages satisfy a voltage stability condition. When...
US20150188168 VOLTAGE SYNCHRONIZATION METHOD AND SYSTEM  
A voltage synchronization method and system are provided. The system includes a main controller that is configured to determine whether voltage synchronization is possible. When the voltage...
US20120135326 BACK-UP FUEL CELL ELECTRIC GENERATOR COMPRISING A COMPACT MANIFOLD BODY, AND METHODS OF MANAGING THE OPERATION THEREOF  
A fuel cell electric generator designed for back-up in the absence of network electricity supply. The generator comprises a fuel cell stack, means for supplying the stack with a first and a second...
US20070065695 Coolant flow estimation for the thermal loop of a fuel cell system using stack loss power  
A thermal sub-system for a fuel cell system that calculates a desired volume flow or mass flow of a cooling fluid pumped through a fuel cell stack solely on thermal stack power loss and cooling...
US20150244009 BACK-UP FUEL CELL ELECTRIC GENERATOR COMPRISING A COMPACT MANIFOLD BODY, AND METHODS OF MANAGING THE OPERATION THEREOF  
A fuel cell electric generator designed for back-up in the absence of network electricity supply. The generator comprises a fuel cell stack, means for supplying the stack with a first and a second...
US20120196199 FUEL CELL SYSTEM AND METHOD FOR CONTROLLING THE SAME  
A fuel cell system and a method for controlling the same are provided. Based on the method, a control temperature of a fuel cell stack is set, and an environment temperature and an operating...
US20150188167 APPARATUS FOR CONTROLLING FUEL CELL HEATING VALUE  
Disclosed herein is an apparatus for controlling a fuel cell heating value. The apparatus includes stack condition sensors which senses conditions of respective fuel cell stacks, and a control...
US20080131739 Solutions for solid oxide fuel cell seal failures  
A solid oxide fuel cell that is resistant to seal delamination is disclosed. The solid oxide fuel cell comprises, either individually or in combination, a solid electrically non-conductive frame,...
US20110129750 DIRECT METHANOL FUEL CELL AND ELECTRONIC DEVICE  
According to one embodiment, a fuel cell, includes a stack includes blocks, each of the blocks includes direct methanol type cells, a connection module configured to switch between connection and...
US20050196676 Polymer ionic electrolytes  
Polymeric ionic gels of ionic liquids having melting points below about 100° C. that are formed by the reaction of a heterocyclic amine with about 2.8 and about 3.2 moles of anhydrous hydrogen...
US20060166058 Fuel cell system ensuring stability of operation  
A fuel cell system designed to supply non- or low-humidified air to a fuel cell stack and ensure the stability of operation thereof. The system works to monitor operating conditions of the fuel...
US20100316922 FUEL CELL SYSTEM  
In order to assure drive of a drive motor, a boost operation of a boost device is appropriately performed by judging whether a voltage supplied from a fuel cell suffices a voltage required for...
US20140349201 FUEL CELL ASSEMBLY AND METHOD OF CONTROL  
An exemplary method includes of operating a fuel cell at a first power output level that includes a plurality of operation parameters. Each operation parameter has a value to satisfy a first power...
US20140113208 METHOD AND SYSTEM FOR STABLE DIRECT METHANOL FUEL CELL OPERATION AT VARYING LOADS AND SUB-ZERO TEMPERATURES  
Methods and systems for operation of direct methanol fuel cell (DFMC) systems with enhanced flexibility within a wide range of electrical loads as well as no external load are provided. With these...
US20150064590 SEAL PLATE AND FUEL CELL STACK USING THE SAME  
A fuel cell stack includes at least two cell modules adjacent to each other, the at least two cell modules each being formed by stacking a plurality of fuel cells into an integrated unit and a...
US20130295477 FUEL CELL SYSTEM  
A fuel cell system having a fuel cell operated under non-humidified conditions that includes a polymer electrolyte membrane sandwiched between an anode and a cathode, a fuel gas channel facing the...
US20110129748 OPERATIONAL METHOD OF FUEL CELL  
According to embodiments of the invention, an operational method of a fuel cell is provided. The method includes providing a fuel cell used to provide output power to a load, measuring an initial...
US20150140462 INTELLIGENT SYSTEM FOR THE DYNAMIC MODELING AND OPERATION OF FUEL CELLS  
A system and method for controlling an output of a dynamic fuel cell is provided. A dynamic fuel cell has a membrane wherein a dimension of the membrane is variable during operation of the dynamic...
US20120028152 DIAGNOSIS AND REMEDIATION OF LOW ANODE HYDROGEN PARTIAL PRESSURE IN A PEM FUEL CELL SYSTEM  
A system and method for preventing anode reactant starvation. The system includes a hydrogen source, an anode bleed valve, and a cell voltage monitor. The system also includes an anode sub-system...
US20140154602 ELECTRIC STORAGE DEVICE  
An electric storage device, secondary battery and high-voltage battery, for an electric vehicle, including at least one stack of storage cells that are strung together. At least two cell poles of...
US20140153932 INTEGRATED ENVIRONMENTALLY PROTECTIVE BARRIER WITH LIGHT BLOCKING AND LIGHT TRANSMITTING FEATURES TO OPTICALLY COMMUNICATE BETWEEN TWO ELECTRONIC DEVICES OPERATING IN DIFFERENT ENVIRONMENTS  
An integrated environmental barrier for protecting the receiver portion of a fuel cell stack health monitoring system. The stack health monitoring system includes a transmitting measurement module...
US20080093140 Fuel Cell System for Vehicle and Vehicle  
A fuel cell system for a vehicle (1) includes a fuel cell (14) configured to react fuel gas and oxidizing gas with each other and generate electricity; a system frame (20) fixed under a floor of a...
US20120115058 MITIGATING ELECTRODE EROSION IN HIGH TEMPERATURE PEM FUEL CELL  
A method of operating a fuel cell power plant (10) including a stack (11) of fuel cells having an anode catalyst layer and a cathode electrode (15) including a catalyst layer disposed on catalyst...
US20140162159 METHOD FOR RUNNING A FUEL CELL SYSTEM WITH A FAILED STACK HEALTH MONITOR  
A system and method for selectively operating a fuel cell stack in response to loss of a voltage signal from one or more fuel cells in the stack. If the voltage signal from the one or more fuel...
US20110086286 METHOD TO PERFORM ADAPTIVE VOLTAGE SUPPRESSION OF A FUEL CELL STACK BASED ON STACK PARAMETERS  
A system and method for maintaining the voltage of fuel cells in the fuel cell stack below a predetermined maximum voltage. The method determines a desired voltage set-point value that defines a...
US20110020720 DEVICE FOR CONTROLLING A POWER SUPPLY WITH DC DC SPLITTING OF THE TYPE INCLUDING N INTERLACED PATHS  
In a power supply with n interlaced conversion cells, a control device activates m paths out of n paths, 1≦m≦n, as a function of the power or of the current handled by the power supply. The cell...
US20110014535 METHOD TO IMPROVE RELIABILITY OF A FUEL CELL SYSTEM USING LOW PERFORMANCE CELL DETECTION AT LOW POWER OPERATION  
A system and method for detecting a low performing cell in a fuel cell stack using measured cell voltages. The method includes determining that the fuel cell stack is running, the stack coolant...
US20130004871 METHOD OF PROVIDING A CALIBRATING REFERENCE VOLTAGE AND INDEX SYNCHRONIZATION SEQUENCE FOR A CELL VOLTAGE MEASUREMENT SYSTEM  
A method for providing calibration synchronization pulses in a pulse width modulation (PWM) signal including fuel cell voltage measurement pulses. The method includes providing a sequence of...
US20130084513 ENERGY ADJUSTING METHOD  
An energy adjusting method for controlling output energy of a fuel cell group, wherein at least one of the fuel cell group and a secondary battery group drives a load is disclosed. The voltage of...
US20070220890 Vehicle power supply system  
The vehicle power generation system, which is mounted on a vehicle having an internal combustion engine as a travel drive power source, and a cooling device for cooling the internal combustion...
US20150162631 MEASUREMENT DEVICE FOR MEASURING VOLTAGES ALONG A LINEAR ARRAY OF VOLTAGE SOURCES  
A measurement device for measuring voltages along a linear array of voltage sources, such as a fuel cell stack, includes at least one movable contact or non-contact voltage probe that measures a...
US20140220465 Method For The Detection Of Fuel Cell System Short Circuits  
An apparatus and method to detect a short circuit event in a fuel cell system of a vehicle. The detection relies on three existing sensors within the fuel cell system, two current sensors and a...
US20150024298 SYSTEM AND METHOD FOR TUNING AN ELECTROCHEMICAL CELL STACK  
The present disclosure is directed to a method for tuning the performance of at least one electrochemical cell of an electrochemical cell stack. The method includes supplying power to an...
US20060115701 Insulating mount structure, insulation monitoring system, and insulation monitoring method for fuel cells  
An insulating mount structure for a fuel cell, which includes insulating mounts (2) for mounting the fuel cell stack (1) on a grounded structure (7), and a water barrier (3) extending in a space...
US20050042488 Transportable solid oxide fuel cell generator  
A transportable solid oxide fuel cell and balance of plant in a portable enclosure. A fuel supply is provided in the enclosure. The fuel supply is refillable. Power conditioning of the electricity...