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:
Jul. 14, 2020
Filed:
Mar. 08, 2018
Sanyo Electric Co., Ltd., Daito-shi, Osaka, JP;
Hidekazu Hiratsuka, Osaka, JP;
Kaoru Nagata, Osaka, JP;
Tsutomu Nishioka, Osaka, JP;
Tatsuhiko Suzuki, Osaka, JP;
SANYO Electric Co., Ltd., Daito-shi, Osaka, JP;
Abstract
A positive electrode active material for nonaqueous electrolyte secondary batteries, which has high energy density and excellent cycle characteristics. A positive electrode active material for nonaqueous electrolyte secondary batteries of the present invention is represented by general formula LiNiCoMO(wherein M represents at least one element selected from among metal elements, 0.3≤x<1.0 and 0<y≤0.5) and is configured of particles, each of which is an aggregate of crystallites. Each particle has a compressive breaking strength of from 200 MPa to 500 MPa (inclusive), and the crystallite diameter in the vector direction of the particle is from 100 nm to 300 nm (inclusive).