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. 23, 2023
Filed:
Dec. 30, 2019
Shanghai Shanshan Tech Co., Ltd., Shanghai, CN;
Liangqin Wei, Shanghai, CN;
Fei Ma, Shanghai, CN;
Dongdong Liu, Shanghai, CN;
Yuhu Wu, Shanghai, CN;
Zhihong Wu, Shanghai, CN;
Xiaoyang Ding, Shanghai, CN;
Fengfeng Li, Shanghai, CN;
SHANGHAI SHANSHAN TECH CO., LTD., Shanghai, CN;
Abstract
A silicon-based anode material, a preparation method thereof and a lithium ion battery are provided. The preparation method of the silicon-based anode material includes: passing a silicon substrate material through a vapor deposition gas to coat the surface of the silicon substrate material with a carbon deposition layer, the vapor deposition gas includes a first carbon source gas and a second carbon source gas, the volume percentage of the first carbon source gas and the second carbon source gas in the vapor deposition gas increases or decreases at different reaction stages for forming the carbon deposition layer. The side of the carbon deposited layer close to the silicon base material is more or less dense than the other side of the carbon deposited layer. The coating layer on the surface of the silicon-based anode material has a continuously changing junction, thereby greatly improving the cycling stability of the material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile