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. 05, 2026
Filed:
May. 27, 2025
Zhuhai Cosmx Battery Co., Ltd., Zhuhai, CN;
ZHUHAI COSMX BATTERY CO., LTD., Zhuhai, CN;
Abstract
A battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The negative electrode plate includes a negative electrode current collector including a copper foil and a negative electrode active material layer including a negative electrode active material which including a silicon-based active material, the electrolyte solution includes lithium bis(trifluoromethanesulfonyl)imide; and the battery satisfies following relationship: B−10A−C/10+3≥0; A is a grain size of copper foil, in a unit of μm; B is a mess percentage of lithium bis(trifluoromethanesulfonyl)imide in the electrolyte solution, in a unit of wt %; C is a mass percentage of the silicon-based active material in the negative electrode active material, in a unit of wt %, and C≤50. The battery may significantly alleviate silicon negative electrode expansion while enhance the kinetic performance and cycling stability of the battery under room-temperature.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile