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:
Dec. 23, 2025
Filed:
Mar. 12, 2021
Sanyo Electric Co., Ltd., Osaka, JP;
PANASONIC ENERGY CO., LTD., Osaka, JP;
Abstract
The purpose of the present disclosure is to provide a non-aqueous electrolyte secondary battery in which polar plate deformation at the outermost periphery of an electrode body due to charge/discharge cycles can be inhibited. A non-aqueous electrolyte secondary battery comprises a wound electrode body in which a rectangular positive electrode and a rectangular negative electrode are wound with a separator interposed therebetween, and a metal exterior body that accommodates the electrode body. The negative electrode is exposed on the outermost peripheral surface of the electrode body, and a fixing tape that fixes the wind-terminating end of the negative electrode is affixed to the outermost peripheral surface of the electrode body. The fixing tape has a layered structure comprising two or more mutually independent layers.