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7544429 |
Membraneless and mediatorless microbial fuel cell
Disclosed is a mediator-less microbial fuel cell comprising a cathode compartment, an anode compartment, with or without glass wool and glass bead for separating the two compartments, an element...
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7435505 |
Fuel cell combination
The invention refers to a fuel cell device comprising an electrolyte device, which comprises an alkaline electrolyte means and an acid electrolyte means, wherein the fuel cell device is formed such...
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7381487 |
In-situ removal of electrolyte from gas oxidizer
A method and apparatus for use with an oxidizer assembly of a fuel cell system in which the oxidizer assembly has an oxidizing unit for oxidizing anode exhaust gas containing electrolyte...
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7358001 |
Process for operating a regenerative fuel cell
In the regenerative fuel cell, a positive chamber is separated from a negative chamber by a cation exchange membrane. The positive chamber comprises a positive electrode and a bromine-containing...
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7235316 |
Integrated heat management of electronics and fuel cell power system
A method and apparatus for managing heat generated by a device that is powered at least in part by a direct oxidation fuel cell. Additional heat tends to improve the reaction in the direct...
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7201982 |
Methods for fuel cell coolant systems
The invention relates to a method for cooling an electrical system comprising circulating in a cooling system of the electrical system a mixture comprising a heat transfer fluid and one or more...
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7128990 |
Additives to the gas supply of fuel cells with circulating electrolytes and means to regenerate used stacks
In a gas diffusion electrode the electrolyte must penetrate the pares of the electrode structure to a certain extent to establish the optimum interface between gas and liquid electrolyte, but it...
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7112380 |
Method and apparatus for the storage and redistribution of electrical energy
A method of storage and redistribution of electrical energy comprising the steps of: producing hydrogen and oxygen through water electrolysis in an electrolyzer ( 1 ) operating under pressure;...
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6977002 |
Fuel reforming apparatus and the method of starting it
A reforming catalyst is composed of a plurality of catalyst layers arranged in series, and when started from a low temperature, preheated air is supplied in parallel to a point upstream of each...
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6924049 |
Electrolysis fuel cell energy plant
A fuel cell device for providing electrical energy, the fuel cell device comprising a first storage tank for storing a hydrogen-based fuel, a second storage tank for storing an oxidant, a fuel cell...
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6890490 |
Hydrogen absorbing tank apparatus
A gas compressor and a bypass that bypasses the gas compressor are provided between a hydrogen absorbing tank and a hydrogen gas consumer device such as, for example, a fuel cell. When the hydrogen...
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6887600 |
Regenerative fuel cell with pH control
The present invention relates to a process for operating a regenerative fuel cell (RFC). The process involves circulating a first electrolyte (electrolyte 1 ) through the negative chamber of the...
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6878479 |
Tilted fuel cell apparatus
Bipolar, tilted embodiments of high temperature, molten electrolyte electrochemical cells capable of directly converting carbon fuel to electrical energy are disclosed herein. The bipolar, tilted...
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6869705 |
Method and device for recovering water from a fuel cell
A rectilinear collector into which open the outlets of the cells and which is provided with a pressure regulator, a removal tube extending rectilinearly within the collector and connected from the...
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6855660 |
Rhodium electrocatalyst and method of preparation
A rhodium sulfide electrocatalyst formed by heating an aqueous solution of rhodium salt until a steady state distribution of isomers is obtained and then sparging hydrogen sulfide into the solution...
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6759155 |
Plate construction of high temperature air-to-air heat exchanger
A fuel cell system including a fuel cell stack, a reformer system, and a waste energy recovery (or heat exchanger) assembly is presented. The waste energy recovery assembly receives an anode supply...
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6727015 |
Fuel cell
In a fuel cell which comprises at least the following elements: a) two electrodes which are each provided with at least one gas duct for a reaction gas, b) a liquid electrolyte, the respective gas...
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6709777 |
Performance recovery process for PEM fuel cells
Recovery of PEM fuel cell performance is achieved by evacuating ( 61, 62 ) or by flowing water absorbing gas ( 46 ) through, or both, the fuel flow field ( 12, 13, 19, 20 ), the air flow field (...
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6699608 |
Method and apparatus for humidifying a gas flow and to a method for using such a device
A method and apparatus for humidifying a gas flow includes means for atomizing a liquid into a gas feed line and means for heating the liquid. The atomizing means is provided in a spray chamber,...
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6627339 |
Fuel cell stack integrated with a waste energy recovery system
A fuel cell comprising a fuel cell stack portion integrally connected to a waste energy recovery portion by a distribution manifold is presented. The fuel cell stack portion has supply and exhaust...
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6569309 |
Fuel cell type reactor and method for producing a chemical compound by using the same
Disclosed is a fuel cell type reactor for performing an oxidation reaction of a system comprising a substrate, a reductant and an oxidant, comprising: a casing; an anode which comprises an anode...
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6555267 |
Membrane-separated, bipolar multicell electrochemical reactor
A multicell assembly is constituted by alternately stacking two types of pre-assembled elements: a bipolar electrode holding subassembly and a membrane holding subassembly. The alternate stack of...
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6517963 |
Carbon monoxide filter
A fuel cell system includes a fuel cell having an electrode, and an electrochemical cell having a device. The electrochemical cell includes a cathode, an anode in fluid communication with the...
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6461495 |
Process for the removal of sulfate ions from an electrolyte
A method for the removal of sulfate ions from an electrolyte of an electrochemical reduction-oxidation system wherein said electrolyte comprises a halogen and in which the sulfate ions an a...
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6428915 |
Apparatus for regulating humidity of process air in fuel cell system
A fuel cell system having a fuel cell, a gas compressor arranged to compress process air and connected to the fuel cell via an air-supply line to supply the compressed process air, a recovery unit...
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6406810 |
Fuel cell system with cathode-side water separating devices
A fuel cell system includes at least one fuel cell which contains an anode space with an inlet-side anode feed and an outlet-side anode discharge; a cathode space with an inlet-side cathode feed...
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6379828 |
Fuel cell
The present invention is concerned with a fuel cell comprising: a chamber suitable for holding an electrolyte therein; a mechanism which enables rotation of the electrolyte about an axis of...
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6338912 |
Fuel cell system having common scroll type compressor and regenerator
A fuel cell system includes a fuel cell, a motor, a scroll type compressor connected to the air feeding pipe of the fuel cell and a scroll type regenerator connected to the air exhaust pipe of the...
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6309769 |
Carbon monoxide filter layer
A carbon monoxide filter layer that can be used, for example, in an electrode unit, a fuel cell, and/or a fuel cell stack is disclosed.
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6291089 |
Radial planar fuel cell stack construction for solid electrolytes
A radial planar fuel cell stack comprises an internal manifold having a first interior cavity and a second interior cavity. A plurality of single cells having an anode layer, a cathode layer, and...
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6242125 |
Battery circulation system with improved four-way valve
A circulation system for a flowing-electrolyte battery having at least one electrochemical cell, an anolyte reservoir, and a catholyte reservoir. The circulation system includes an anolyte pump...
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6207306 |
Apparatus for humidifying the air stream of a fuel cell power plant
A water recovery fuel cell system includes a fuel cell defining a cathode flow field including a cathode input port and a cathode output port, and an anode flow field including an anode input port...
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6194094 |
Polymer electrolyte fuel cell
A gas diffusion layer including an electroconductive porous material and 16-55% by weight of fluororesin added to the electroconductive porous material is used for at least one of the positive...
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6187467 |
Ionomer impregnation of electrode substrates for improved fuel cell performance
Liquid feed fuel cell performance can be increased by impregnating electrode substrates with a proton conducting ionomer prior to incorporation of the electrocatalyst, and optionally also after...
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6153323 |
Electrode treatment method for improving performance in liquid feed fuel cells
Fuel cell performance in liquid feed fuel cells with an electrode comprising a carbonaceous substrate and an electrocatalyst can be increased by oxidizing the carbon substrate, particularly by...
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6071634 |
Electric power generation system including fuel cells
A electrochemical power generation system comprising a plurality of fuel cells electrically connected to each other, each fuel cell having an anode and a cathode. A plurality of first passage means...
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6068941 |
Start up of cold fuel cell
A proton exchange membrane fuel cell has methanol or ethanol fed into the coolant passages during shut down so as to prevent water trapped therein from freezing in sub-freezing environments. Upon...
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6017646 |
Process integrating a solid oxide fuel cell and an ion transport reactor
An integrated system utilizing a solid oxide fuel cell and at least one ion transport reactor to generate electric power and a product gas by delivering an oxygen-containing gas, typically air, to...
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5998053 |
Method for operating an apparatus with fuel cells
The apparatus comprises a cell block with fuel cells, a heat insulating jacket, an afterburner chamber between the jacket and the cell block, a prereformer for a combustion gas as well as an...
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5980716 |
Water treatment apparatus for a fuel cell system
Low conductivity cooling water for a fuel cell body is obtained by a water treatment apparatus which removes dissolved carbon dioxide gas in the exhaust gas condensate by a decarbonation column....
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5935726 |
Method and apparatus for distributing water to an ion-exchange membrane in a fuel cell
A method and apparatus are provided for distributing water produced by the electrochemical reaction to an ion-exchange membrane in a electrochemical fuel cell. Water distribution within a fuel cell...
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RE36148 |
Method and apparatus for disposing of water and/or inert gas from a fuel cell block
A method for cathode-side water and inert gas disposal and/or anode-side inert gas disposal from a fuel cell block having a number of fuel cells, includes increasingly concentrating a water and an...
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5840437 |
Apparatus with fuel cells
The apparatus comprises a cell block with fuel cells, a heat insulating sleeve and an afterburner chamber between the sleeve and the cell block. The afterburner chamber is connected at two opposite...
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5795669 |
Electrode
An electrode comprises a first catalytic component active at gas-phase reaction sites and a second catalytic component active at electrochemical reaction sites wherein each catalytic component is...
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5774918 |
Modular rolling pin with dough storage means
A modular rolling pin has a plurality of cylindrical linking modules and a plurality of cylindrical dough storage modules. The linking modules and the dough storage modules are releasably and...
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5573866 |
Direct methanol oxidation polymer electrolyte membrane power system
A polymer electrolyte membrane fuel cell includes an anode chamber and a cathode chamber which are separated by the electrolyte membrane. The fuel cell directly oxidizes a liquid methanol fuel...
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5567540 |
Electrochemical power generating system
A method of controlling a power generating system comprising a plurality of metal-air cells and a pump for circulating an electrolyte solution through the cells. The method comprises sensing an...
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5563003 |
Fuel cell and supplementary electrolyte container and method for supplementing fuel cell with electrolyte
Molten carbonate type or phosphoric acid type fuel cells and a method for supplementing these fuel cells with an electrolyte are disclosed. A fuel cell having an extended life is provided by...
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5558947 |
Rechargeable battery system and method and metal-air electrochemical cell for use therein
Rechargeable metal-air battery systems comprise a plurality of plate groups (40) disposed within a battery cell (12) and have input and output conduits (13, 14). A fluid electrolyte is circulated...
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5525437 |
Electrochemical cell having a liquid electrolyte and spiral-wound electrodes with improved electrolyte filling
The present invention provides an electrochemical cell having a liquid electrolyte and spiral-wound electrodes provided with an axial chimney for electrolyte filling purposes and placed inside a...
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