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
1990-09-18
1991-07-16
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...
429206, 429223, H01M 452, H01M 1034
Patent
active
050324756
ABSTRACT:
A nickel-metal hydride secondary cell comprising a non-sinter type nickel positive electrode accommodated in an enclosure and comprised of a conductive core and a layer formed on the conductive core, the layer made of a mixture of nickel hydroxide power and cobalt monoxide powder covered with a layer of high-valence cobalt oxide, a hydrogen absorbing alloy negative electrode accommodated in the enclosure and comprised of a conductive core and a layer formed on the conductive core and made of a mixture hydrogen absorbing alloy powder and carbon black having a specific surface area of 700 m.sup.2 /g or more, and having a capacity 1.0 to 2.5 times the sum of the capacity of the nickel hydroxide contained in the positive electrode and the electricity required to oxidize the cobalt monoxide powder, a separator made of synthetic resin unwoven fabric having a texture size of 50 to 100 g/m.sup.2 and a thickness of 0.1 to 0.25 mm, and located between the positive electrode and the negative electrode, and alkali electrolyte contained in the enclosure.
REFERENCES:
patent: 3951686 (1976-04-01), Ness et al.
patent: 4049027 (1977-09-01), Seiger
patent: 4636445 (1987-01-01), Yamaho et al.
patent: 4837119 (1989-06-01), Jkoma et al.
patent: 4925748 (1990-05-01), Jkoma et al.
patent: 4935318 (1990-06-01), Jkoma et al.
Hasebe Hiroyuki
Hata Katuyuki
Hayashida Hirotaka
Ishiwa Koji
Mitsuyasu Kiyoshi
Kabushiki Kaisha Toshiba
Skapars Anthony
Toshiba Battery Co.
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