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. 20, 2022
Filed:
Sep. 15, 2020
Zhuhai Cosmx Battery Co., Ltd., Zhuhai, CN;
Ning Peng, Zhuhai, CN;
Abstract
The present disclosure provides a battery, a preparation method thereof and an electric device. The battery includes a housing and an accommodated battery cell including electrode sheets and electrode tabs, where the electrode sheet includes a current collector, and the current collector is coated with an active material layer, the current collector includes a coating area coated with the active material layer and an empty foil area not coated with the active material layer, one end of the electrode tab is overlapped with the empty foil area, and the electrode tab and the electrode sheet are formed into an integral structure by laser welding; a surface of the empty foil area facing away from the electrode tab has a plurality of spiral weld marks arranged at intervals; and a surface of the electrode tab facing away from the empty foil area has no weld marks.