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:
Jan. 19, 2021
Filed:
Sep. 15, 2017
Sumitomo Osaka Cement Co., Ltd., Tokyo, JP;
Ryuuta Yamaya, Tokyo, JP;
Masataka Oyama, Tokyo, JP;
SUMITOMO OSAKA CEMENT CO., LTD., Tokyo, JP;
Abstract
A cathode material for a lithium-ion secondary battery of the present invention is active material particles including central particles represented by General Formula LiADPO(0.9<x<1.1, 0<y≤1, 0≤z<1, and 0.9<y+z<1.1; here, A represents at least one element selected from the group consisting of Co, Mn, Ni, Fe, Cu, and Cr, and D represents at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, and Y) and a carbonaceous film that coats surfaces of the central particles, in which a coarse particle ratio in a particle size distribution is 35% or more and 65% or less.