Sealed storage battery and method for making its electrode

Details Sealed storage battery and method for making its electrode Sealed storage battery and method for making its electrode

1987-12-08

1989-06-06

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429218, 429220, 429222, 429223, H01M 436

Patent

active

048371190

ABSTRACT:
A sealed storage battery comprises a positive electrode including a metallic oxide as an active material, a negative electrode including hydrogen-storage-alloy powder capable of electrochemically charging and discharging hydrogen as an active material, an alkaline electrolyte, and two separators (12a and 1 2b) for absorbing and retaining the alkaline electrolyte. The hydrogen-storage-alloy power has a crystal structure and is provided with numerous irregularities on the surface thereof, and has SF-value of 2.5 or below, which SF-value represents a plateau characteristic of equilibrium pressure of released hydrogen. The numerous irregularities on the surface of the alloy powder cause oxygen being generated from the positive electrode to be eliminated promptly.

REFERENCES:
patent: 4716088 (1987-12-01), Reichman et al.
Chemical Abstracts, vol. 106, No. 1, Jan. 5, 1987, Columbus, Ohio, USA; Furukawa, Sanehiro et al., "Hydrogen Absorbing Anode", p. 151, col. 1, abstract-No. 7 556b & Jpn. Kokai Tokkyo Koho JP 61 168 871.
Chemical Abstracts, vol. 106, No. 1, Jan. 5, 1987, Columbus, Ohio, USA; Furukawa, Sanehiro et al., "Metal-Hydrogen Alkaline Battery", p. 151, col. 1, abstract-No. 7 557c & Jpn. Kokai Tokkyo Koho JP 61 168 870.

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