Metal hydride electrode and nickel-hydrogen alkaline storage cel

Details Metal hydride electrode and nickel-hydrogen alkaline storage cel Metal hydride electrode and nickel-hydrogen alkaline storage cel

1994-09-28

1996-04-09

Willis, Jr., Prince

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429212, 429223, 420900, H01M 448, H01M 462

Patent

active

055060749

ABSTRACT:
A metal hydride electrode is mainly composed of a hydrogen-absorbing alloy and provided with carbon powder which is selected from acetylene black, carbon black, ketjen black, and active carbon. The metal hydride electrode is further provided with an additive including an oxide and/or a hydroxide of a metal having oxidation-reduction potential nobler than an operational potential of the hydrogen-absorbing alloy. The metal hydride electrode has excellent oxygen gas absorption ability and easy detection of -.DELTA.V, thereby realizing to produce a nickel-hydrogen alkaline storage cell with excellent charge/discharge cycle life.

REFERENCES:
patent: 4696873 (1987-09-01), Yagasaki et al.
patent: 4810600 (1989-03-01), Periard et al.
patent: 5043233 (1991-08-01), Kameoka et al.
patent: 5053292 (1991-10-01), Hasbe et al.
Murata, Patent Abstracts of Japan vol. 17, No. 334 (E-1387) [5963], p. , Jun. 24, 1993.

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