摘要 |
This invention provides a secondary battery in a nonaqueous type using a substance indicated in I below and/or a substance indicated in II below as an active material for either of positive and negative electrodes: I: a composite oxide possessing a layer structure and represented by the general formula: AxMyNzO2 wherein A stands for at least one alkali metal, M for a transition metal, N for at least one member selected from the group consisting of Al, In, and Sn, and x, y, and z respectively for the number falling in a specific range, II: an n-doped carbonaceous material which has a BET-method specific surface area, and a crystal thickness, Lc, in the X-ray diffraction and a true density, rho , both having the values falling in a specific range. The secondary battery of this invention is small and light, excels in cyclicity and self-discharging property, and possesses a high energy density. |
申请人 |
ASAHI KASEI KOGYO K.K., OSAKA, JP |
发明人 |
YOSHINO, AKIRA, FUJISAWA-SHI KANAGAWA-KEN, JP;SANECHIKA, KENICHI, NAKAHARA-KU KAWASAKI-SHI KANAGAWA-KEN, JP;NAKAJIMA, TAKAYUKI, KAWASAKI-SHI KANAGAWA-KEN, JP |