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Title: Thin non-flat gas electrode, current collector and process of manufacture

Abstract

The invention relates to a process for manufacturing an electrode, particularly a thin gas electrode of any non flat shape, characterized in that an homogeneous mixture is prepared of dry particles of active compounds, formed by at least one compound with electrocatalytic activity and possibly by at least one compound presenting electronic conductivity, and dry polytetrafluorethylene fibers, a lubricant is added and possibly a surfactant so as to cause coating of the particles of the mixture with the lubricant, and the lubricated particles of the mixture are shaped to form the electrode. Thus, electrodes of different shapes are obtained, for example a glove finger shape. The invention also relates to a process for preparing a current collector for an electrochemical device electrode, characterized in that there is deposited, on at least a part of the surface of this electrode, a thin porous metal film adhering to the electrode. The deposit is formed by metal plating and it may be advantageously formed from nickel or copper, having a thickness between 0.01 mm and 5 mm; preferably of the order of 0.05 mm.

Inventors:
Publication Date:
OSTI Identifier:
6372950
Patent Number(s):
US 4440835
Assignee:
Societe Les Piles Wonder (France)
Resource Type:
Patent
Resource Relation:
Patent Priority Date: Priority date 13 Apr 1981, France; Other Information: PAT-APPL-367993
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; ELECTRODES; ELECTROCATALYSTS; FABRICATION; SURFACE AREA; FILMS; CONFIGURATION; COPPER; DEPOSITION; ELECTRIC CONDUCTIVITY; FIBERS; FUEL CELLS; NICKEL; POLYTETRAFLUOROETHYLENE; CATALYSTS; DIRECT ENERGY CONVERTERS; ELECTRICAL PROPERTIES; ELECTROCHEMICAL CELLS; ELEMENTS; FLUORINATED ALIPHATIC HYDROCARBONS; HALOGENATED ALIPHATIC HYDROCARBONS; METALS; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC POLYMERS; PHYSICAL PROPERTIES; POLYETHYLENES; POLYMERS; POLYOLEFINS; SURFACE PROPERTIES; TRANSITION ELEMENTS; 250903* - Energy Storage- Batteries- Materials, Components, & Auxiliaries

Citation Formats

Vignaud, R. Thin non-flat gas electrode, current collector and process of manufacture. United States: N. p., 1984. Web.
Vignaud, R. Thin non-flat gas electrode, current collector and process of manufacture. United States.
Vignaud, R. 1984. "Thin non-flat gas electrode, current collector and process of manufacture". United States.
@article{osti_6372950,
title = {Thin non-flat gas electrode, current collector and process of manufacture},
author = {Vignaud, R},
abstractNote = {The invention relates to a process for manufacturing an electrode, particularly a thin gas electrode of any non flat shape, characterized in that an homogeneous mixture is prepared of dry particles of active compounds, formed by at least one compound with electrocatalytic activity and possibly by at least one compound presenting electronic conductivity, and dry polytetrafluorethylene fibers, a lubricant is added and possibly a surfactant so as to cause coating of the particles of the mixture with the lubricant, and the lubricated particles of the mixture are shaped to form the electrode. Thus, electrodes of different shapes are obtained, for example a glove finger shape. The invention also relates to a process for preparing a current collector for an electrochemical device electrode, characterized in that there is deposited, on at least a part of the surface of this electrode, a thin porous metal film adhering to the electrode. The deposit is formed by metal plating and it may be advantageously formed from nickel or copper, having a thickness between 0.01 mm and 5 mm; preferably of the order of 0.05 mm.},
doi = {},
url = {https://www.osti.gov/biblio/6372950}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 03 00:00:00 EST 1984},
month = {Tue Apr 03 00:00:00 EST 1984}
}