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1. (WO2017034001) POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY CELL, METHOD FOR MANUFACTURING SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY CELL

Pub. No.:    WO/2017/034001    International Application No.:    PCT/JP2016/074843
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Fri Aug 26 01:59:59 CEST 2016
IPC: H01M 4/525
C01G 53/00
H01M 4/505
Applicants: SUMITOMO METAL MINING CO., LTD.
住友金属鉱山株式会社
Inventors: OSHITA, Hiroko
大下 寛子
RYOSHI, Kazuomi
漁師 一臣
SARUWATARI, Motoaki
猿渡 元彬
Title: POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY CELL, METHOD FOR MANUFACTURING SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY CELL
Abstract:
Provided are: a positive electrode active material for a nonaqueous electrolyte secondary cell in which gelling of a positive electrode mixture paste is suppressed and excellent weather resistance is achieved; a method for manufacturing the positive electrolyte active material; and the like. The present invention is based on: a method for manufacturing a positive electrode active material for a nonaqueous electrolyte secondary cell, the method being characterized by including washing a powder comprising a lithium-nickel composite oxide represented by the general formula LizNi1-x-yCoxMyO2 (where 0 ≤ x ≤ 0.35, 0 ≤ y ≤ 0.10, 0.95 ≤ z ≤ 1.10, and M is one or more elements selected from Mn, V, Mg, Mo, Nb, Ti, and Al) with an aqueous solution that contains one or more lithium salts selected from water-soluble lithium salts other than lithium hydroxide, and drying the washed powder; and the like.