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:
Apr. 09, 2024
Filed:
Oct. 30, 2023
Beijing Easpring Material Technology Co., Ltd., Beijing, CN;
Yiseng Hu, Beijing, CN;
Shanshan Li, Beijing, CN;
Shunlin Song, Beijing, CN;
Yafei Liu, Beijing, CN;
Yanbin Chen, Beijing, CN;
Beijing Easpring Material Technology Co., Ltd., Beijing, CN;
Abstract
A single crystal multi-element positive electrode material and a preparation method therefor, and a lithium ion battery. The ratio of the length of the longest diagonal line to the length of the shortest diagonal line of the single crystal particles of the single crystal multi-element positive electrode material measured by an SEM is roundness R, and R≥1; and D, Dand Dof the single crystal particles of the single crystal multi-element positive electrode material satisfy: K=(D−D)/D, and the product of Kand R is 1.20-1.40. The single crystal multi-element positive electrode material is more round and regular in morphology, the single crystal particles have uniform size, less agglomeration and less adhesion. The material has the characteristics of high compaction density, good rate capability and excellent cycle performance.