Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP3848250
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a positive electrode active material for a secondary battery for manufacturing the lithium secondary battery that is superior in electromagnetic property and has a feature of a high capacity and a long life by using diadochite, and to provide its manufacturing method.
SOLUTION: This positive electrode active material for the secondary battery contains diadochite that is expressed by a general formula as expressed by a formula (1), or a formula (3). Here, in the general formula of the formula (3), LiaFebMc(PO4)x(SO4)y(OH)z, M is an element of one or more selected from a group consisting of Mg, Ti, Cr, Mn, Co, Ni, Cu, Zn, Al, Ga, and Si, and 0≤a, c≤0.5, 1≤b≤2, and 0.5≤x, y, z≤1.5.
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Inventors:
Hong Young Sik
Ryu Kwang Song
Changseungho
Park Young Jun
Lee Young Ki
Kim kwang man
Park Namkyu
Kang Mang
Ohhyang Lang
Ryu Kwang Song
Changseungho
Park Young Jun
Lee Young Ki
Kim kwang man
Park Namkyu
Kang Mang
Ohhyang Lang
Application Number:
JP2002368783A
Publication Date:
November 22, 2006
Filing Date:
December 19, 2002
Export Citation:
Assignee:
Electronics and Telecommunications Research Institute
International Classes:
H01M4/58; C01B25/45; (IPC1-7): H01M4/58; //H01M4/02
Domestic Patent References:
| JP2000509193A |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe