Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1997-06-10
1999-08-10
Maples, John S.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
429 59, 420900, 296235, H01M 438
Patent
active
059357320
ABSTRACT:
A hydrogen absorbing electrode using a hydrogen absorbing alloy including at least one or more kinds of transition metals belonging to VIIb-group, VIII-group or Ib-group in periodic table at a specified percentage, characterized in that a surface part of the hydrogen absorbing alloy forms a rich layer including the foregoing transition metals at a percentage larger than the foregoing specified percentage. Since the rich layer exists, an activation at initial stage of charge/discharge is not required. Accordingly, this electrode can be utilized effectively for a nickel-hydride secondary battery.
REFERENCES:
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Chemical Abstracts, vol. 115, No. 14, Oct. 7, 1991, Abstract No. 139623, Kanekawa Ikuo et al. "Manufacture of Hydrogen-Absorbing Alloy Anode"--Abstract & JP-A-03 093 160 (Sanyo Electric Co.) Apr. 18, 1991.
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Patent Abstracts of Japan, vol. 017, No. 668 (E-1473), Dec. 9, 1993 & Jp-A-05 225974 (Furukawa Battery Co Ltd:The) Sep. 3, 1993 --Abstract.
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Bogauchi Takehito
Furukawa Kengo
Kuzuhara Minoru
Matsumura Yuichi
Nakagawa Hiroe
Maples John S.
Yuasa Corporation
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