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:
May. 05, 2026
Filed:
Jun. 01, 2022
Btr New Material Group Co., Ltd., Shenzhen, CN;
Dingyuan New Energy Technology Co., Ltd., Huizhou, CN;
Chengmao Xiao, Shenzhen, CN;
Peng He, Shenzhen, CN;
Eming Guo, Shenzhen, CN;
Jianguo Ren, Shenzhen, CN;
Xueqin He, Shenzhen, CN;
BTR NEW MATERIAL GROUP CO., LTD., Shenzhen, CN;
DINGYUAN NEW ENERGY TECHNOLOGY CO., LTD., Huizhou, CN;
Abstract
The present disclosure relates to the field of negative electrode materials, and provides a negative electrode material and a preparation method therefor, and a lithium ion battery. The negative electrode material comprises an aggregate, the aggregate comprising an active substance and a carbon material. The mass percentage of the active substance in the aggregate gradually decreases from the center to the surface of the aggregate. The negative electrode material provided by the present disclosure can effectively suppress volume expansion of the negative electrode material and improve battery cycle performance.