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. 21, 2025
Filed:
Jun. 30, 2025
Contemporary Amperex Technology Co., Limited, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde, CN;
Abstract
An electrode sheet, a preparation method, a battery cell, a battery, and an electric device are provided. The electrode sheet includes a current collector having a main body and a tab extending from a first end of the main body in a first direction. The main body includes a coated region and a transition region located between the coated region and the tab. An active material layer is formed on the coated region. A first insulating layer is disposed on the end face of the first end. A second insulating layer is at least partially disposed on the surface of the transition region and includes a thermoplastic polymer. The thermoplastic polymer has a volumetric particle size distribution DV50 of 6-10 μm and a maximum particle size Dmax of 90-110 μm. The electrode sheet improves the reliability of the battery cell.