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. 07, 2026
Filed:
Jun. 21, 2023
Guangdong Brunp Recycling Technology Co., Ltd., Foshan, CN;
Hunan Brunp Recycling Technology Co., Ltd., Changsha, CN;
Hunan Brunp Ev Recycling Co., Ltd., Changsha, CN;
Haijun Yu, Foshan, CN;
Yinghao Xie, Foshan, CN;
Aixia Li, Foshan, CN;
Xuemei Zhang, Foshan, CN;
Changdong Li, Foshan, CN;
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., Foshan, CN;
HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., Changsha, CN;
HUNAN BRUNP EV RECYCLING CO., LTD., Changsha, CN;
Abstract
A method for recycling a lithium battery cathode material. Residual aluminum on the positive electrode sheet is dissolved by a sodium hydroxide solution, and lithium in the cathode material enters the solution during the dissolution of aluminum, such that an ionic potential is vacated on the cathode material; a residue is washed to avoid sodium ion contamination, then dried, and allowed to react with metallic lithium and lithium sulfide under heating, such that crystal lattices of the material change; a product after first-stage lithium supplementation is directly sintered with a lithium source in an oxygen atmosphere to obtain monocrystalline ternary cathode material agglomerates, where a sintering method and a sintering temperature are controlled; and the agglomerates are crushed, then washed to remove residual lithium on the surface, and dried to obtain a monocrystalline ternary cathode material, which has the performance close to that of the initially synthesized monocrystalline cathode material.