Title:
LITHIUM MANGANESE SPINEL AND ITS PRODUCTION AND ITS USE
Document Type and Number:
Japanese Patent JP3921697
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a new lithium manganese spinel, to provide a method for producing the same, and further to provide a manganese lithium secondary battery excellent in cycling characteristics and having a high capacity by using the lithium manganese spinel as an anode.
SOLUTION: The lithium manganese spinel wherein the value of a lattice constant a0 assigned to a cubic Fd3m is expressed by an inequality: 8.11 angstrom ≤ a0 ≤ 8.13 angstrom. The method for producing the lithium manganese spinel comprises mixing manganese dioxide having a β-type crystal structure with a lithium compound in a Mn/Li molar ratio of 1.0-1.8 and subsequently thermally treating the mixture at a temperature of ≤350°C. And the secondary battery uses the lithium manganese spinel as the anode.
Inventors:
Masayuki Yoshio
Masaki Okada
Takamoto Mori
Masaki Okada
Takamoto Mori
Application Number:
JP28501895A
Publication Date:
May 30, 2007
Filing Date:
November 01, 1995
Export Citation:
Assignee:
Tosoh Corporation
International Classes:
C01G45/00; H01M4/505; H01M10/05; (IPC1-7): C01G45/00; H01M4/58; H01M10/40
Domestic Patent References:
| JP8203521A | ||||
| JP9129233A |
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