213482 ⎘
Fuel cells; Manufacture thereof; Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids; Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function Concentration; Density
Sub-classes:VEHICLE FUEL CELL SYSTEM
#2FUEL CELL GAS CORRECTION SYSTEM FOR BLENDED GAS FUELS AND DUAL FUEL OPERATION
#3FUEL CELL SYSTEM
#4ELECTRIC POWER SUPPLY SYSTEM
#5FLOW BATTERY BUBBLE DETECTION SYSTEM
#6FUEL CELL DURABILITY AND VALIDATION MODULE TEST STAND
#7SAFETY AND SUPPORT SYSTEM FOR A FUEL CELL MODULE
#8METHANE-OXYGEN BATTERY SYSTEM AND METHOD OF USE THEREOF
#9REGENERATIVE FUEL CELL SYSTEM
#10INERTING SYSTEM FOR AN AIRCRAFT
#11MULTI-MODULE FUEL CELL SYSTEM AND METHOD OF CONTROLLING THE SAME
#12DIAGNOSIS SYSTEMS AND METHODS FOR FUEL CELL ASSEMBLIES
#13Fuel Cell System
#14ELECTROCHEMICAL CELL DEIONIZATION SYSTEM
#15ELECTROLYTE HEALTH MANAGEMENT FOR REDOX FLOW BATTERY
#16ION ANALYSIS DEVICE AND FUEL CELL EVALUATION SYSTEM
#17DILUTION CIRCUITRY FOR FUEL CELL VEHICLES WITH COMBINED FUEL CELL EXHAUST SYSTEMS
#18ELECTROCHEMICAL SYSTEM INCLUDING A VENTILATION ASSEMBLY AND METHOD OF VENTILATING THE SYSTEM
#19HYDROGEN IMPURITY TESTING SYSTEM AND HYDROGEN IMPURITY TESTING METHOD
#20HYDROGEN CONCENTRATION SENSOR
#21NETWORK OF OPTICAL FIBER SENSORS AND METHOD FOR MONITORING THE STRUCTURAL HEALTH OF A COMPOSITE CRYOGENIC LIQUID HYDROGEN FUEL TANK
#22METHOD FOR REGULATING THE PLATINUM OXIDE FRACTION IN A FUEL CELL, AND FUEL CELL SYSTEM FOR A MOTOR VEHICLE
#23DRIVE SYSTEM AND DETERMINING METHOD FOR DETERMINING A TEMPERATURE IN A METERING SYSTEM OF A DRIVE SYSTEM
#24DEVICE AND METHOD FOR DIAGNOSING HYDROGEN LEAKAGE OF FUEL CELL VEHICLE
#25FUEL CELL CONTROL PROGRAM AND FUEL CELL SYSTEM
#26FUEL CELL EVALUATION SYSTEM AND FUEL CELL EVALUATION METHOD
#27CARBON-OXYGEN BATTERY AND METHOD OF USE THEREOF
#28FUEL CELL CHEMICAL FILTER MONITORING SYSTEM AND METHODS
#29APPARATUS AND METHOD FOR DETERMINING STATE OF CHARGE IN A REDOX FLOW BATTERY VIA LIMITING CURRENTS
#30ENERGY MANAGEMENT FOR POWER SYSTEM
#31AIRCRAFT FUEL CELL AIR SUPPLY ANTI CONTANIMATION SYSTEM
#32METHODS AND APPARATUS FOR END-OF-LINE TESTING OF FUEL CELL STACKS AND ELECTROLYZERS
#33FUEL CELL POWER GENERATION SYSTEM AND CONTROL METHOD OF FUEL CELL POWER GENERATION SYSTEM
#34Electrolyte health management for redox flow battery
#35SENSOR FOR DETECTING AT LEAST ONE PROPERTY OF A FLUID MEDIUM IN AT LEAST ONE MEASURING CHAMBER
#36Modular fuel cell assembly
#37METHOD FOR FUELING FUEL CELL SYSTEMS, AND FUEL CELL SYSTEM ASSEMBLY
#38FUEL CELL SYSTEM HAVING ACTIVE HOUSING PURGING
#39VEHICLE FUEL CELL SYSTEM
#40SERVICE PROVIDING MOBILE UNIT
#41HYDROGEN STORAGE APPARATUS
#42System and methods for monitoring and controlling emissions from fuel cell engines
#43FULL CELL SYSTEM
#44Hydrogen gas dispensing systems and methods
#45FUEL CELL SYSTEM
#46Anode gas purge control method for proton exchange membrane fuel cell
#47Hydrogen concentration sensor
#48Hydrogen concentration sensor
#49Fuel cell vehicle having hydrogen detection in fuel cell accommodation space below front cabin
#50Electrolyte health management for redox flow battery
#51Flow battery control method, flow battery control system and flow battery
#52Fuel cell stack, method for producing a fuel cell stack and method for operating a fuel cell stack
#53Electrolyte health management for redox flow battery
#54Fuel cell system and control method for same
#55Fuel cell system and method for controlling same
#56Apparatus and method for determining state of charge in a redox flow battery via limiting currents
#57Methods and apparatus for detecting electrical short circuits in fuel cell stacks
#58System and method for generating electric power with a fuel cell array, control unit and dynamic electrical load
#59DISPLAY DEVICE
#60Electrolyte health management for redox flow battery
#61Hydrogen gas dispensing systems and methods
#62Fuel Battery System and Fuel Battery System Operation Method
#63Generator unit having a fuel cell device, vehicle having a generator unit of this type and method for monitoring a generator unit
#64Fuel cell stack cell voltage sensor diagnostic
#65In-situ monitoring of flue gas contaminants for fuel cell systems
#66Flow battery control method, flow battery control system and flow battery
#67Operation of a fuel cell stack to prevent low oxygen concentrations in a surrounding enclosed space
#68Method and system for controlling hydrogen purging of fuel cell
#69FUEL CELL SYSTEM AND METHOD FOR CONTROLLING FUEL CELL SYSTEM
#70Fuel cell system for vehicle
#71Method of starting-up a fuel cell arrangement and fuel cell arrangement
#72Hydrogen gas dispensing systems and methods
#73Fuel cell system and method of controlling the same
#74Leak detection on a high-temperature fuel cell or electrolyzer
#75Device and method for testing airtightness of fuel cell stack
#76Fuel cell assembly and associated method of operation
#77SOFC system and method of operating a SOFC system
#78FUEL CELL SYSTEM AND METHOD OF CONTROLLING FUEL CELL SYSTEM
#79FUEL CELL DEVICE AND OPERATION CONTROL METHOD FOR FUEL CELL DEVICE
#80Gas sensor including first electrode, second electrode, metal oxide layer, and insulating film, and fuel-cell vehicle including the gas sensor
#81Fuel cell vehicle
#82Systems and methods for initiating voltage recovery in a fuel cell system
#83Engine systems and methods of operating an engine
#84Redox flow battery system, pump control unit, and method for operating redox flow battery
#85Metal-air battery, vehicle system comprising the metal-air battery, and method of operating the metal-air battery
#86Generation of oxygen depleted air by a fuel cell system
#87METHOD FOR DETERMINING THE STATE OF CHARGE OF A VANADIUM REDOX FLOW BATTERY
#88Fuel cell system having a fuel cell stack arranged in a housing, and a measure for ventilating the housing
#89Metal air battery having air purification module and method of operating the metal air battery
#90Method and system for storing electricity in metals
#91Distribution of electrolytes in a flow battery
#92Rebalancing electrolyte concentration in flow battery using pressure differential
#93System and method for minimizing transport related performance losses in a flow battery system
#94Apparatus and method for determining state of charge in a redox flow battery via limiting currents
#95Fuel cell system and method for controlling fuel cell system
#96Fuel cell system and control method for fuel cell system
#97Fuel cell system
#98Method of preventing fuel gas from entering cabin of mobile object including fuel cell and mobile object including fuel cell
#99Hydrogen detecting sensor
#100Hydrogen-generating fuel cell cartridges
#101Method of maintaining health of a flow battery
#102Fuel cell-powered motorcycle
#103Fuel cell system and method for controlling the same
#104Hydrogen generation apparatus, fuel cell system including the same, method of operating hydrogen generation apparatus and method of operating fuel cell system
#105Fuel cell system equipped with a hydrogen leakage detector
#106Power generation system and method of operating power generation system
#107Structure and method for indicating undesirable constituents in a fuel cell system
#108Safety System for a Flow Battery and Flow Battery System
#109Method for controlling startup of fuel cell system
#110Air-breathing fuel cell and cell stack for the oxidation of ions using oxygen
#111Method and device for operating fuel cells
#112Apparatus and method for softsensing fuel cell system
#113Anode leak location detection
#114Fuel cell system
#115Method for optimizing the feed of fuel comprising a carbonyl-containing compound to the catalytic electrode of a fuel cell stack
#116FUEL CELL SYSTEM
#117System and method for controlling fuel cell module
#118FUEL CELL SYSTEM
#119Fuel cell system
#120Hydrogen generation apparatus, fuel cell system, and method of operating the same
#121FUEL CELL SYSTEM, REFORMER SYSTEM, AND METHOD FOR DRIVING FUEL CELL SYSTEM
#122Fuel cell system having fuel cell box and ventilation device
#123Method and arrangement for controlling fuel feed in the fuel cell system
#124System and method for optimizing efficiency and power output from a vanadium redox battery energy storage system
#125Fuel cell system and method of stopping fuel cell system
#126METHOD FOR MANAGING A FUEL CELL DURING SULFUR COMPOUND POLLUTION, AND POWER SUPPLY DEVICE
#127Electrochemical reactor, such as a fuel cell or an electrolyser, provided with a device for measuring a parameter of a gas specific to the operation of said reactor
#128MODULAR REGENERATIVE FUEL CELL SYSTEM
#129FUEL CARTRDIGE FOR FUEL CELL
#130Function test of fuel cell exhaust gas stream hydrogen sensor by generating defined hydrogen pulses while driving and at regular service with fuel cell system immanent devices
#131Hydrogen-generating fuel cell cartridges
#132Hydrogen concentration measurement device and fuel cell system
#133Fuel cell system
#134Method for inferring temperature in an enclosed volume
#135PRESSURE RELIEF SYSTEM FOR A FUEL CELL SYSTEM HAVING A PRESSURIZED FUEL FLOW
#136Fuel cell system
#137Fuel cell system and method of controlling a fuel cell system
#138FUEL CELL SYSTEM AND METHOD FOR OPERATING A FUEL CELL SYSTEM
#139FUEL CELL SYSTEM AND METHOD FOR OPERATING A FUEL CELL SYSTEM
#140Instrumented fluid-surfaced electrode
#141Structure and method for optimizing system efficiency when operating an SOFC system with alcohol fuels
#142MOBILE ELECTRONIC DEVICE WITH AIR INLET
#143Avoiding coolant slump into reactant fields during PEM fuel cell shutdown
#144Hydrazine fixing detection system
#145FUEL CELL SYSTEM AND CONTROL METHOD THEREOF
#146FUEL CELL SYSTEM AND ELECTRONIC APPARATUS
#147Fuel cell system
#148CONNECTING APPARATUS IN FUEL CELL SYSTEM AND FUEL CELL SYSTEM INCLUDING THE CONNECTING APPARATUS
#149Fuel cell system with bypass path and operation method for controlling bypass path of fuel cell system
#150Fuel cell system
#151Fuel cell system with co detector
#152Power regulating device for an aircraft
#153METHOD FOR DETERMINING A STATE OF A REFORMER IN A FUEL CELL SYSTEM
#154Hydrogen generator, fuel cell system and their operating methods
#155Apparatus and method for determining deterioration of a fuel cell and method for preventing deterioration of the same
#156Fuel cell system capable of reducing deterioration of fuel cell
#157Hydrogen chamber enclosed fuel cell stack and related fuel cell shutdown operation
#158Method of operating a fuel cell system by detecting leakage of a combustible gas
#159Fuel cell system
#160DETERMINATION OF THE LAMBDA VALUE OF REFORMATE WITH THE AID OF A FUEL CELL
#161METHOD FOR DETERMINING AN ANODE CONVERSION DEGREE IN A FUEL CELL SYSTEM
#162ENERGY MANAGEMENT MODULE AND DRIVING DEVICE
#163CONCENTRATION MEASURING STRUCTURE CAPABLE OF REDUCING THE EFFECT OF ENVIRONMENTAL TEMPERATURE
#164Method for determining an air ratio in a burner for a fuel cell heater, a fuel cell heater
#165Fuel cell system
#166Gas sensor with piping for the introduction of inspection gas
#167GAS PHYSICAL QUANTITY DETECTING DEVICE, FUEL CELL SYSTEM AND VEHICLE
#168Fuel cell system and method for judging fuel gas leak in a fuel cell system
#169Fuel cell system and fuel cell control method
#170Fuel cell system and method for controlling fuel cell system
#171Closed coolant loop with expansion device for a fuel cell system
#172Flow Control Apparatus and Method for Fuel Cell Flow Fields
#173Fuel cell system
#174GAS-LIQUID SEPARATION SYSTEM AND FUEL CELL SYSTEM
#175Ventilation for fuel cell power unit
#176Detecting and controlling a fuel-rich condition of a reactor in a fuel cell system
#177Distributed fuel cell network
#178Thin-film detecting device
#179Fuel Cell System
#180Startup circuit for electronics in a hazardous environment
#181Pressure relief control system for a fuel cell system having a pressurized fuel flow
#182Method for operating a fuel cell system and fuel cell system
#183FUEL CELL DEVICE WITH REMOTE CONTROL INTERFACE
#184Fuel cell system and operation method thereof
#185Fuel cell system
#186Fuel cell system and gas leak determination method for fuel cell system
#187Fuel cell system
#188Fuel cell system and start up control method for the fuel cell system
#189FUEL CELL SYSTEM AND TRANSPORT EQUIPMENT INCLUDING THE SAME
#190Method and apparatus for porous catalyst on a fuel cell flow field and high temperature membrane
#191Fuel cell system
#192Energy output device and control method of energy output device
#193System stability improvements tolerating increased nitrogen cross-over
#194Hydrogen generating device and method
#195Gas Composition monitoring arrangement
#196Fuel cell system and method for operating same
#197Fuel cell unit and method for controlling the same
#198Modular regenerative fuel cell system
#199Gas sensor and fuel cell system and automobile employing the same
#200Fuel cell system with carbon monoxide catalyst
#201Method and apparatus for forming a fuel cell flow field with an electrolyte retaining material
#202Method and apparatus for metal coated silicon fuel cell electrode
#203Pillared fuel cell electrode system
#204Manifold system for a fuel cell
#205Method and apparatus for carbon coated silicon fuel cell electrode
#206Gas sensor, fuel cell system therewith, and automobile therewith
#207Portable fuel cell power supply
#208Apparatus and method for controlling a fuel cell system
#209System and method for optimizing efficiency and power output from a vanadium redox battery energy storage system
#210Deterioration diagnosis of fuel cell seal member
#211Fuel cell system
#212Fuel cell sensors and methods of using and fabricating the same
#213Ambient reactants fuel cells
#214Ambient reactants fuel cells, methods, and systems