Title:
【発明の名称】非水系二次電池
Document Type and Number:
Japanese Patent JP3021478
Kind Code:
B2
Abstract:
PURPOSE:To retard the decomposition of an electrolyte in a positive electrode even if charge discharge is repeated by containing a specific oxide in an oxide indicated in LixMnOy. CONSTITUTION:A negative electrode 2 uses lithium or a lithium alloy as the active material and a positive electrode 1 uses an oxide indicated in LixMnOy (x and y each is a positive integer, and x and y have the relation of 2y-x>x) as the active material. Manganese oxide in which the valency of manganese is 3 or less is contained in the oxide indicated in LixMnOy. Decomposition of an electrolyte in charging is retarded without adverse effect on discharge performance and cycle performance is enhanced.
Inventors:
Nobuhiro Furukawa
Toshiyuki Noma
Yuji Yamamoto
Toshiyuki Noma
Yuji Yamamoto
Application Number:
JP23786389A
Publication Date:
March 15, 2000
Filing Date:
September 13, 1989
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H01M4/36; H01M4/50; H01M4/505; H01M10/05; H01M10/052; (IPC1-7): H01M4/58; H01M4/02; H01M10/40
Domestic Patent References:
| JP63114064A | ||||
| JP1209663A |
Attorney, Agent or Firm:
Shiro Nakajima