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1. EP1323201 - BONDING ELECTROCHEMICAL CELL COMPONENTS

Office
European Patent Office
Application Number 00966733
Application Date 15.09.2000
Publication Number 1323201
Publication Date 02.07.2003
Publication Kind B1
IPC
H01M 8/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
H01M 8/10
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
H01M 8/24
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
24Grouping of fuel cells, e.g. stacking of fuel cells
CPC
H01M 8/0206
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0204Non-porous and characterised by the material
0206Metals or alloys
H01M 8/021
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0204Non-porous and characterised by the material
0206Metals or alloys
0208Alloys
021Alloys based on iron
H01M 8/0228
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0204Non-porous and characterised by the material
0223Composites
0228in the form of layered or coated products
H01M 8/0232
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
023Porous and characterised by the material
0232Metals or alloys
H01M 8/0267
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0267having heating or cooling means, e.g. heaters or coolant flow channels
H01M 8/0273
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0271Sealing or supporting means around electrodes, matrices or membranes
0273with sealing or supporting means in the form of a frame
Applicants LYNNTECH INC
Inventors CISAR ALAN J
MURPHY OLIVER J
CLARKE ERIC T
Designated States
Priority Data 0025391 15.09.2000 US
Title
(DE) VERBINDEN VON ELEKTROCHEMISCHEN ZELLENBAUTEILEN
(EN) BONDING ELECTROCHEMICAL CELL COMPONENTS
(FR) LIAISON DE COMPOSANTS DE CELLULES ELECTROCHIMIQUES
Abstract
(EN)
The invention provides a method for preparing subassemblies for an electrochemical cell or a stack of electrochemical cells, particularly a stack of fuel cells for the direct generation of electricity. The method includes bonding together two or more electrochemical cell components, such as plates, frames, flow fields, shims, gaskets, membranes and the like, to form subassemblies used to make an electrochemical cell stack. The bonding can be accomplished using either polymeric bonds (i.e., adhesives) where polymer and/or metal components are involved or mettalurgical bonds (i.e., solder) where metal components are involved. The bonding provides tightly sealed cells and lower electronic contact resistances between components.

(FR)
L'invention concerne un procédé de préparation de sous-ensembles destinés à une cellule électrochimique ou à une pile de cellules électrochimiques, notamment une pile de piles à combustible permettant la génération directe d'électricité. Le procédé consiste à assembler au moins deux composants de cellules électrochimiques, tels que des plaques, des cadres, des champs de courant, des cales, des joints d'étanchéité, des membranes et autres, pour former des sous-ensembles utilisés dans la formation d'une pile de cellules électrochimiques. L'assemblage peut être réalisé au moyen de liaisons polymères (c'est-à-dire d'adhésifs) impliquant des composants polymères et/ou métalliques ou de liaisons métallurgiques (c'est-à-dire de soudure) impliquant des composants métalliques. L'assemblage produit des cellules hermétiques et des résistances de contact électroniques plus faibles entre les composants.