Paste-type cadmium electrode for use in an alkaline storage cell

Details Paste-type cadmium electrode for use in an alkaline storage cell Paste-type cadmium electrode for use in an alkaline storage cell

1990-01-17

1991-01-29

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429 60, H01M 438

Patent

active

049885898

ABSTRACT:
A paste-type cadmium electrode for use in an alkaline storage cell, comprising a conductive substrate, an active material layer mainly comprising cadmium oxide and formed on a surface of the conductive substrate, and a conductive layer or a nickel body formed on a surface of the active material layer.
The conductive layer either has therein powdered carbon and powdered alkali-resistant metal having a surface area of 0.001 to 0.5 m.sup.2 against 1 g of the active material; comprises powdered carbon, a binder and powdered alkali-resistant metal having an apparent density of 0.2 g/cc or less; or comprises a first conductive layer formed on a surface of the active material layer and comprising powdered alkali-resistant metal and a binder, and a second conductive layer formed on a surface of the first conductive layer and comprising powdered carbon and a binder.
The nickel body is dispersed on a surface of the active material layer, the nickel body comprising fiber-type nickel having an average fiber diameter of 1 .mu.m or less and/or powdered nickel having an average grain size of 1 .mu.m or less.

REFERENCES:
patent: 4614696 (1986-09-01), Itou et al.
patent: 4826744 (1989-05-01), Jto et al.
patent: 4938780 (1990-07-01), Kaiya et al.

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