Chemistry: electrical current producing apparatus – product – and – Sealed cell having gas prevention or elimation means – Prevention or elimination means is one of the cell...
Patent
1989-12-21
1991-01-22
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Sealed cell having gas prevention or elimation means
Prevention or elimination means is one of the cell...
429222, 429223, H01M 436, H01M 1052
Patent
active
049870416
ABSTRACT:
Overcharge protection, and especially the chargeability of a sealed Ni/Cd battery with high currents (up to 1 CA) is improved by rolling a carbon-containing powdered material into the surface of the negative electrode, which material catalyzes the reduction of oxygen. Wetting of the electrode with a "Tylose" dispersion prior to application of the powder (by powdering, vibration or in an agitator) improves the adhesion of the powder. The cadmium electrode thus prepared combines in itself the functions of a negative principal electrode and of an auxiliary oxygen electrode.
REFERENCES:
patent: 3877985 (1975-04-01), Rampel
patent: 3966494 (1976-06-01), O'Sullivan
patent: 4142025 (1979-02-01), Ritterman
patent: 4215190 (1980-07-01), Ferrando et al.
patent: 4224392 (1980-09-01), Oswin
patent: 4246326 (1981-01-01), Sprengel et al.
Skapars Anthony
Varta Batterie Aktiengesellschaft
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