Non-aqueous electrolyte secondary battery

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.

Dependencies are inferred from the claim text.