Title:
POSITIVE POLE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP2547137
Kind Code:
B2
Abstract:
PURPOSE: To provide a positive pole active mass for a lithium secondary battery wherein the active mass consists of a Mn-Li composite material which can improve charge-discharge cycle property even at the time of deep discharging of a lithium secondary battery.
CONSTITUTION: Regarding a Mn-Li composite material prepared by containing lithium in a manganese oxide compound, a part of manganese is substituted with at least one element selected from Mo and W belonging to 6A-group in the periodic table and with at least one element selected from B, Al Ga, and In belonging to 3B-group in the table. Consequently, as compared with a conventional positive pole active mass, the charge-discharge cycle property of a lithium secondary battery is remarkably improved.
Inventors:
MANGAHARA TOORU
WATAKABE JUICHI
YAMAGUCHI MASAO
YAMAMOTO KAZUTOMI
WATAKABE JUICHI
YAMAGUCHI MASAO
YAMAMOTO KAZUTOMI
Application Number:
JP27905091A
Publication Date:
October 23, 1996
Filing Date:
July 30, 1991
Export Citation:
Assignee:
FURUKAWA DENCHI KK
FURUKAWA KIKAI KINZOKU KK
FURUKAWA KIKAI KINZOKU KK
International Classes:
H01M4/485; H01M4/505; (IPC1-7): H01M4/50; H01M4/02
Domestic Patent References:
| JPH02278661A |
Attorney, Agent or Firm:
Kazuo Kitamura