Publication number: 20220216460
Abstract: A positive electrode active material for a secondary battery according to an embodiment contains: a first composite oxide component represented by general formula Li?[LixMnyCozMe(1?x?y?z)]O2 (in the formula, Me is at least one selected from among Ni Fe, Ti, Bi, Nb, W, Mo, and Ta, 0.5<?<0.85, 0.05<x<0.2, 0.4<y<0.75, and 0<z<0.25), and having at least one crystal structure selected from among O2, T2, and O6 structures; and a second composite oxide component represented by general formula LiaMObAc (in the formula, M is at least one selected from among Ni, Co, Mn, Fe, Cu, Ti, Nb, Al, Ga, Bi, Zr, Ce, Y, W, Ta, Sn, Ca, Ba, and Na, A is at least one selected from among F, Cl, and S, 1.3<a<7, 2?b<5, and 0?c?0.3).
Type:
Application
Filed:
April 24, 2020
Publication date:
July 7, 2022
Applicant:
Panasonic Intellectual Property Management Co., Ltd.
Inventors:
Kosuke Kuroda, Hiroshi Kawada, Atsushi Fukui