Title:
METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES
Document Type and Number:
Japanese Patent JP2015088343
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lithium nickelate-based positive electrode active material arranged so that the generation of gas can be suppressed, and enables the achievement of a high charge and discharge capacities and good cycle characteristics.SOLUTION: A method for manufacturing a positive electrode active material for nonaqueous electrolyte secondary batteries comprises: a cleaning step of preparing cleaned particles by rinsing, by deionized water, core particles including a lithium transition metal complex oxide expressed by the general formula, LiNiMO(where 0.95≤a≤1.05; 0≤x≤0.25; M is at least one element selected from Co, Mn and Al); a mixing step of preparing mix particles by mixing the cleaned particles with a boron compound containing oxygen; and a thermal treatment step of performing a thermal treatment on the mix particles at a thermal treatment temperature of 100-400°C, thereby preparing the positive electrode active material.
Inventors:
HARADA NAOYA
KIMURA AKIHIRO
KIMURA AKIHIRO
Application Number:
JP2013226089A
Publication Date:
May 07, 2015
Filing Date:
October 31, 2013
Export Citation:
Assignee:
NICHIA KAGAKU KOGYO KK
International Classes:
H01M4/525; H01M4/36; H01M4/505
Domestic Patent References:
| JP2010040382A | 2010-02-18 | |||
| JPH07192720A | 1995-07-28 | |||
| JP2003017054A | 2003-01-17 |
Foreign References:
| WO2013108571A1 | 2013-07-25 |
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