摘要 |
A nickel-metal hydride secondary cell comprising a non-sinter type nickel positive electrode (1) accommodated in an enclosure (4) and comprised of a conductive core and a layer formed on the conductive core, the layer made of a mixture of nickel hydroxide powder and cobalt monoxide powder covered with a layer of high-valence cobalt oxide, a hydrogen absorbing alloy negative electrode (2) accommodated in the enclosure (4) 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<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 (1) and the electricity required to oxidize the cobalt monoxide powder, a separator (3) made of synthetic resin unwoven fabric having a texture size of 50 to 100 g/m<2> and a thickness of 0.1 to 0.25 mm, and located between the positive electrode (1) and the negative electrode (2), and alkali electrolyte contained in the enclosure (4). |
申请人 |
TOSHIBA BATTERY CO., LTD.;KABUSHIKI KAISHA TOSHIBA |
发明人 |
HASEBE, HIROYUKI, C/O INTELLECTUAL PROPERTY DIV.;TAKENO, KAZUTA;MITSUYASU, KIYOSHI, C/O INTELLECTUAL PROPERTY DIV.;SATO, YUJI, C/O INTELLECTUAL PROPERTY DIV.;TAKAHASHI, HIROYUKI;HAYASHIDA, HIROTAKA, C/O INTELLECTUAL PROPERTY DIV;SAWATARI, ICHIROU;ISHIWA, KOJI;HATA, KATUYUKI;YOSHIDA, KAZUHIRO;SASAKI, KUNIHIKO, C/O INTELLECTUAL PROPERTY DIV. |