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:
Sep. 08, 2026
Filed:
Mar. 13, 2024
Zhuhai Cosmx Battery Co., Ltd., Zhuhai, CN;
Ning Peng, Zhuhai, CN;
Zhuhai CosMX Battery Co., Ltd., Zhuhai, CN;
Abstract
The present disclosure provides a battery, a manufacturing method thereof and an electronic product. The battery cell includes electrodes and tabs, where each of the electrodes includes a current collector and an active material layer, and the current collector includes a coating zone coated with the active material layer and an empty foil zone, and an end of a tab overlaps the empty foil zone and the tab and the empty foil zone are connected by laser welding; the side of the empty foil zone facing away from the tab has a plurality of dot-shaped welding marks arranged at intervals, and the dot-shaped welding marks include a concave part and an annular convex part surrounding the concave part. The contact area between the annular convex part and the separator between the positive electrode and the negative electrode is large, and the separator is less likely to be pierced.