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:
Nov. 18, 2025
Filed:
Apr. 11, 2025
Zhuhai Cosmx Battery Co., Ltd., Zhuhai, CN;
ZHUHAI COSMX BATTERY CO., LTD., Zhuhai, CN;
Abstract
A battery includes a negative electrode plate and an electrolyte solution; the negative electrode plate includes a negative electrode active material layer, which includes a silicon-based material, and based on a total weight of the negative electrode active material layer, silicon content is A; a surface of the negative electrode active material layer has recesses; the electrolyte solution includes 1,3-propene sultone, a mass percentage of 1,3-propene sultone in a total mass of the electrolyte solution is E; and A, a depth of the recesses B, a width of the recesses C, a spacing of the recesses D, and E satisfy 0.05≤C/(A×E×B×D)≤100. The battery not only exhibits high energy density but also significantly mitigates the problem of damage and corner cracking of the outer film casing in the later stages of battery cycling.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile