The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2020
Filed:
May. 18, 2018
Taiheiyo Cement Corporation, Minato-ku, JP;
Denso Corporation, Kariya-shi, JP;
Hiroki Yamashita, Sakura, JP;
Yuko Hirayama, Sakura, JP;
Toshihito Shimada, Sakura, JP;
Takaaki Ogami, Sakura, JP;
Shuhei Yoshida, Kariya, JP;
Satoru Suzuki, Kariya, JP;
TAIHEIYO CEMENT CORPORATION, Minato-ku, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
There is provided a positive electrode active material composite for a lithium-ion secondary battery, in which, when using as a positive electrode active material of the lithium-ion secondary battery, it can effectively improve high-temperature cycle characteristics. In the positive electrode active material composite for a lithium-ion secondary battery, only on the surface of a lithium transition metal oxide secondary particle (A) composed of one or more of the lithium transition metal oxide particles represented by the following formula (I): LiNiCoMnMO. . . (I) or the following formula (II): LiNiCOAlMO. . . (II), a lithium-based polyanion particles (B) is composited with lithium transition metal oxide particles under a specific condition, the lithium-based polyanion particles (B) being represented by the following formula (III) or (III)': LiMnFeMPO. . . (III) or MnFeMPO. . . (III)′ and being supporting carbon (C) on a surface thereof.