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1. (WO1998053515) PRODUCTION OF ELECTROLYTE UNITS BY ELECTROLYTIC DEPOSITION OF A CATALYST
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/053515 International Application No.: PCT/DE1998/001302
Publication Date: 26.11.1998 International Filing Date: 08.05.1998
Chapter 2 Demand Filed: 19.11.1998
IPC:
C25B 9/06 (2006.01) ,C25B 9/00 (2006.01) ,C25B 9/10 (2006.01) ,C25D 5/56 (2006.01) ,H01M 4/88 (2006.01) ,H01M 8/1004 (2016.01)
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
9
Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies
06
Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
9
Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
9
Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies
06
Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
08
with diaphragms
10
including an ion-exchange membrane in or on which electrode material is embedded
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
D
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
5
Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
54
Electroplating of non-metallic surfaces
56
of plastics
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
86
Inert electrodes with catalytic activity, e.g. for fuel cells
88
Processes of manufacture
[IPC code unknown for H01M 8/1004]
Applicants:
FORSCHUNGSZENTRUM JÜLICH GMBH [DE/DE]; Wilhelm-Johnen-Strasse D-52425 Jülich, DE (AllExceptUS)
DIVISEK, Jiri [DE/DE]; DE (UsOnly)
OETJEN, Hans-Friedrich [DE/DE]; DE (UsOnly)
SCHMIDT, Volkmar, Manfred [DE/DE]; DE (UsOnly)
Inventors:
DIVISEK, Jiri; DE
OETJEN, Hans-Friedrich; DE
SCHMIDT, Volkmar, Manfred; DE
Agent:
FORSCHUNGSZENTRUM JÜLICH GMBH; Personal und Recht - Patente (PR-PT) D-52425 Jülich, DE
Common
Representative:
FORSCHUNGSZENTRUM JÜLICH GMBH; Personal und Recht - Patente (PR-PT) D-52425 Jülich, DE
Priority Data:
197 20 688.316.05.1997DE
Title (DE) HERSTELLUNG VON ELEKTRODEN-ELEKTROLYT-EINHEITEN DURCH ELEKTROLYTISCHE ABSCHEIDUNG DES KATALYSATORS
(EN) PRODUCTION OF ELECTROLYTE UNITS BY ELECTROLYTIC DEPOSITION OF A CATALYST
(FR) PRODUCTION D'ELECTRODE DE DIFFUSION GAZEUSE PAR DEPOT ELECTROLYTIQUE DU CATALYSEUR
Abstract:
(DE) Verfahren zur Herstellung einer Elektroden-Elektrolyt-Einheit mit einer katalytisch aktiven Schicht. Gelöstes Metallsalz (2) wird schichtförmig zwischen eine Elektrolytschicht (1) und eine Elektrode (3) gebracht und Metall elektrochemisch aus dem Metallsalz abgeschieden. Vorteilhaft sind keine teuren Galvanikbäder zur Herstellung erforderlich. Das katalytisch aktive Metall wird zielgerichtet an der Drei-Phasen-Zone abgeschieden. Der Verbrauch teurer Edelmetalle wird so minimiert. Die Elektroden-Elektrolyt-Einheit wird z.B. in Brennstoffzellen eingesetzt.
(EN) The invention relates to a method for producing an electrolyte unit with a catalytically active coating. Dissolved metal salt (2) is placed in the form of a coating between an electrolyte coating (1) and an electrode (3) and metal is electrochemically separated from the metal salt. One advantage of the invention is that no expensive electroplating baths are required for production. The catalytically active metal is deposited in targeted manner on the three phase zone, thereby minimizing the use of expensive precious metals. The electrolyte unit can, for example, be used in fuel cells.
(FR) L'invention concerne un procédé pour produire une unité électrode-électrolyte comportant une couche catalytiquement active. Selon ce procédé, un sel métallique dissous est placé en couches entre une couche d'électrolyte et une électrode, puis le métal est séparé du sel métallique par voie électrochimique. L'invention présente l'avantage de ne pas nécessiter la production de bains de galvanisation onéreux. Le matériau catalytiquement actif est déposé de façon ciblée au niveau de la zone à trois phases, ce qui permet de minimiser la consommation en métaux nobles onéreux. Cette unité électrode-électrolyte est utilisée par exemple dans des piles à combustible.
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Designated States: CA, JP, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
EP0988656US6277261JP2001525980 CA2288678