Palladium plated current collector

Details Palladium plated current collector Palladium plated current collector

1989-06-01

1990-05-15

Kalafut, Stephen J.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429206, H01M 466

Patent

active

049257544

ABSTRACT:
An alkaline electrochemical cell is disclosed which comprises a cathode subassembly, with a metal oxide cathode and collector means for collecting current from the cathode, a zinc anode, an electrolyte in contact with the zinc anode and a nonmetallic separator between the cathode and the anode. The collector means comprises a metal plated current collector additionally plated with a layer of palladium. In one embodiment, the metal oxide cathode is a manganese dioxide cathode and the current collector comprises a nickel plated steel clip adapted for holding the metal oxide cathode which has been plated with an additional layer of palladium on surfaces where the clip makes strong gripping contact with the metal oxide cathode. Most preferably, the current collector clip is selectively plated on the inner surface of each leg of the clip with a palladium layer about 3 microinches thick.

REFERENCES:
patent: 2861116 (1958-11-01), Grubb
patent: 3785868 (1974-01-01), DeVitt
patent: 3939010 (1976-02-01), Coleman et al.
patent: 3945847 (1976-03-01), Kordesch et al.
patent: 4760002 (1988-07-01), Schneider et al.

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