Oxygen electrode and process for making the same

Details Oxygen electrode and process for making the same Oxygen electrode and process for making the same

1973-10-29

1976-04-06

Skapars, Anthony

Batteries: thermoelectric and photoelectric

Thermoelectric

Radiation pyrometer

136 86D, H01M 2704

Patent

active

039486842

ABSTRACT:
An improved gas permeable hydrophobic electrode structure and procedures for making it are provided. The electrode structure comprises an electrically conductive metal current collecting grid and catalyst substrate, for example, nickel. A manganese dioxide catalyst is deposited on, and is adhered to, both side faces of the grid. Such manganese dioxide is one which has been deposited in situ on a suitable substrate, for example, activated carbon or sintered nickel, and is bound together within the selected substrate by means of a fluorocarbon polymer, for example, polytetrafluoroethylene. A hydrophobic semipermeable membrane, for example, a fibrous polytetrafluoroethylene membrane or a microporous polypropylene membrane, is secured on one side of the coated nickel grid. The catalyst of manganese dioxide, formed in situ, for example, by specifically recited techniques on the above-noted selected substrate is bound together within the pore structure of the selected substrate by means of a fluorocarbon polymer, for example, polytetrafluoroethylene.

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