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:
Aug. 04, 2026
Filed:
May. 07, 2021
Btr New Material Group Co., Ltd., Shenzhen, CN;
Dingyuan New Energy Technology Co., Ltd., Huizhou, CN;
Lijuan Qu, Shenzhen, CN;
Chunlei Pang, Shenzhen, CN;
Zhiqiang Deng, Shenzhen, CN;
Jianguo Ren, Shenzhen, CN;
Xueqin He, Shenzhen, CN;
BTR NEW MATERIAL GROUP CO., LTD., Shenzhen, CN;
DINGYUAN NEW ENERGY TECHNOLOGY CO., LTD., Huzhou, CN;
Abstract
Providing a silicon-oxygen composite material, an anode material and a preparation method thereof. The silicon-oxygen composite material has a size D10 of in a range of 3.0 μm to 8.2 μm. In the present disclosure, by controlling the particle size D10 of the silicon-oxygen composite material to between 3.0 μm and 8.2 μm, on the one hand, the uniformity of pre-lithiation can be improved, the nano-silicon cannot be exposed on a surface of the particles, and desired improvement of initial Coulombic efficiency and good cycle stability can be obtained; on the other hand, the silicon-oxygen composite material has a suitable electron and ion conduction channels, and internal resistance of the particles is small, which improves the rate performance and cycle performance of the material.