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1. (WO2018003448) POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY CELL, AND POSITIVE ELECTRODE FOR LITHIUM SECONDARY CELL AND LITHIUM SECONDARY CELL IN WHICH SAID POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY CELL IS USED

Pub. No.:    WO/2018/003448    International Application No.:    PCT/JP2017/021288
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Fri Jun 09 01:59:59 CEST 2017
IPC: H01M 4/131
H01M 4/505
H01M 4/525
H01M 4/62
H01M 10/052
H01M 10/0568
Applicants: HITACHI METALS, LTD.
日立金属株式会社
Inventors: HARUNA Hiroshi
春名 博史
TOKORO Hisato
所 久人
TAKAMATSU Daikoh
高松 大郊
TOOYAMA Tatsuya
遠山 達哉
NAKABAYASHI Takashi
中林 崇
TAKAHASHI Shin
高橋 心
Title: POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY CELL, AND POSITIVE ELECTRODE FOR LITHIUM SECONDARY CELL AND LITHIUM SECONDARY CELL IN WHICH SAID POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY CELL IS USED
Abstract:
The present invention provides: a positive electrode material for a lithium secondary cell with which it is possible to manufacture a positive electrode of a lithium secondary cell while suppressing denaturation of a positive electrode mixture; and a positive electrode for a lithium secondary cell and a lithium secondary cell in which said positive electrode material for a lithium secondary cell is used. The positive electrode material for a lithium secondary cell contains a positive electrode active material represented by formula (1) below, and a boric acid ester represented by formula (2) below. : Li1+aNibMncCodMeO2+α (1): [In formula (1), M is at least one element selected from the group consisting of Mg, Al, Ti, Zr, Mo, and Nb, and a, b, c, d, e, and α are numbers that satisfy –0.1 ≤ a ≤ 0.2, 0.7 < b ≤ 0.9, 0 ≤ c < 0.3, 0 ≤ d < 0.3, 0 ≤ e ≤ 0.25, b + c + d + e = 1, and –0.2 ≤ α ≤ 0.2.] : (BO)3(OR)3 (2): [In formula (2), R is a C1 or higher organic group.]