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1. WO2000039202 - METHOD FOR PRODUCTION OF POLYELECTROLYTE MEMBRANES AND FUEL CELL

Publication Number WO/2000/039202
Publication Date 06.07.2000
International Application No. PCT/EP1999/009831
International Filing Date 11.12.1999
Chapter 2 Demand Filed 06.07.2000
IPC
C08J 5/22 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
20Manufacture of shaped structures of ion-exchange resins
22Films, membranes or diaphragms
H01M 8/10 2006.01
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
CPC
C08J 2379/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2379Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
04Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
C08J 5/2256
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
20Manufacture of shaped of ion-exchange resins ; Use of macromolecular compounds as anion B01J41/14 or cation B01J39/20 exchangers
22Films, membranes, or diaphragms
2206based on organic and/or inorganic macromolecular compounds
2218Synthetic macromolecular compounds
2256based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation
H01M 8/1027
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
1016characterised by the electrolyte material
1018Polymeric electrolyte materials
102characterised by the chemical structure of the main chain of the ion-conducting polymer
1027having carbon, oxygen and other atoms, e.g. sulfonated polyethersulfones [S-PES]
H01M 8/103
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
1016characterised by the electrolyte material
1018Polymeric electrolyte materials
102characterised by the chemical structure of the main chain of the ion-conducting polymer
103having nitrogen, e.g. sulfonated polybenzimidazoles [S-PBI], polybenzimidazoles with phosphoric acid, sulfonated polyamides [S-PA] or sulfonated polyphosphazenes [S-PPh]
H01M 8/1032
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
1016characterised by the electrolyte material
1018Polymeric electrolyte materials
102characterised by the chemical structure of the main chain of the ion-conducting polymer
1032having sulfur, e.g. sulfonated-polyethersulfones [S-PES]
H01M 8/1088
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
1016characterised by the electrolyte material
1018Polymeric electrolyte materials
1069characterised by the manufacturing processes
1086After-treatment of the membrane other than by polymerisation
1088Chemical modification, e.g. sulfonation
Applicants
  • CELANESE VENTURES GMBH [DE/DE]; 65926 Frankfurt, DE (AllExceptUS)
  • YAMAMOTO, Tetsu [JP/JP]; JP (UsOnly)
Inventors
  • YAMAMOTO, Tetsu; JP
Priority Data
10/37155425.12.1998JP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR PRODUCTION OF POLYELECTROLYTE MEMBRANES AND FUEL CELL
(FR) PROCEDE DE PRODUCTION DE MEMBRANES DE POLYELECTROLYTE ET PILE A COMBUSTIBLE
Abstract
(EN)
A method for producing a polyelectrolyte membrane, including the step of immersing a basic polymer such as a polybenzimidazole in a strong acid having a concentration sufficient to impregnate the basic polymer with six or more strong acid molecules per polymer repeating unit of the basic polymer at a temperature of not less than 30 °C for a period of 5 h or less, as well as a fuel battery having the polyelectrolyte membrane. Hence, the times required to immerse the basic polymers in the strong acids can be shortened and the proton conductivity of the polyelectrolyte membranes can be improved.
(FR)
L'invention a trait à un procédé de production de membrane de polyélectrolyte, qui comporte l'étape consistant à plonger un polymère de base tel qu'un polybenzimidazole dans un acide fort à une concentration suffisante pour imprégner le polymère de base de six ou davantage de molécules d'acide fort par motif du polymère de base, à une température d'au moins 30 °C pendant une durée égale ou inférieure à 5 h, et à une batterie de piles à combustible pourvues de la membrane de polyélectrolyte. Le procédé permet de raccourcir les durées nécessaires d'immersion des polymères de base dans les acides forts, et d'améliorer la conductivité des protons des membranes de polyélectrolyte.
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