Thin non-flat gas electrode, current collector and process of manufacture
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.
- Assignee:
- Societe Les Piles Wonder (France)
- Patent Number(s):
- US 4440835
- OSTI ID:
- 6372950
- Resource Relation:
- Patent Priority Date: Priority date 13 Apr 1981, France; Other Information: PAT-APPL-367993
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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