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:
Oct. 20, 2026
Filed:
Apr. 23, 2025
Zhuhai Cosmx Battery Co., Ltd., Zhuhai, CN;
ZHUHAI COSMX BATTERY CO., LTD., Zhuhai, CN;
Abstract
The disclosure provides a lithium-ion battery that satisfies the equation (2M+3)(S+2)/W≥20, where M=exp(m/d)+(d−2)(m−0.26). Wherein, mis the tensile strength of the negative electrode current collector in the length direction, and dis the thickness of the negative electrode current collector. Additionally, S=exp(m/d)+(d−2)(m−0.16), wherein mis the puncture strength of the separator, and dis the thickness of the substrate within the separator. Furthermore, W=(((exp(−10q))/(φ−6)+exp(10q))(d−13.5)(ρ−3.5))/100. This disclosure effectively addresses the issue of pressure exerted on the battery casing due to volume swelling of the negative electrode material, thereby significantly enhancing the battery's cycle life and safety performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile