Title:
LITHIUM SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2004335332
Kind Code:
A
Abstract:
To provide a lithium secondary battery from which a high power output can be taken out even under a low temperature environment.
The lithium secondary battery uses a layered rock salt lithium nickel oxide whose structure is LiNO2 as a positive electrode active substance, and has a positive electrode using the positive electrode active substance as a compound material, where the density of the mixture is in the range from 1.5 to 2.6 g/cm3. In addition, the density of the mixture is in the range from 1.7 to 2.4 g/cm3 preferably. This reduces the internal resistance of the battery, increases the output of the battery, and makes the dependence of an output value on temperature smaller.
Inventors:
ITO YUICHI
TAKEUCHI YOJI
UKIYOU YOSHIO
TAKEUCHI YOJI
UKIYOU YOSHIO
Application Number:
JP2003131272A
Publication Date:
November 25, 2004
Filing Date:
May 09, 2003
Export Citation:
Assignee:
TOYOTA CENTRAL RES & DEV
International Classes:
H01M10/05; H01M4/131; H01M10/0525; H01M10/0568; (IPC1-7): H01M4/02; H01M4/58; H01M10/40
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