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:
Feb. 10, 2026
Filed:
May. 09, 2022
Shenzhen Dynanonic Innovazone New Energy Technology Co., Ltd., Guangdong, CN;
Yuanxin Wan, Guangdong, CN;
Zeqin Zhong, Guangdong, CN;
Lingyong Kong, Guangdong, CN;
Zhongke Zhao, Guangdong, CN;
Xianyinan Pei, Guangdong, CN;
SHENZHEN DYNANONIC INNOVAZONE NEW ENERGY TECHNOLOGY CO., LTD., Guangdong, CN;
Abstract
The present application discloses a lithium-rich iron-based composite material and a preparation method and application thereof. The lithium-rich iron-based composite material includes a lithium-rich iron-based material having a molecular formula of aLiFeO·bLiO·cMO, where a, b, and c are numbers of moles, and 0≤c/(a+b+c)≤0.02, 1.8≤b/a≤2.1, M is a doping element, and 1≤y/x≤2.5. The lithium-rich iron-based composite material can provide abundant lithium, and the lithium-rich iron-based material has a high purity and low residual alkali on the surface, which lead to high capacity and good lithium supplementing effect, as well as good stability for storage and processing. The application of the lithium-rich iron-based composite material in a lithium-supplementing additive for cathodes, a cathode material, a cathode and a lithium-ion battery.