Non-aqueous electrolyte secondary battery
By tilting the substrate layer of the insulating tape to reduce the shear force on the electrode, the problem of electrode damage caused by repeated charging and discharging in non-aqueous electrolyte secondary batteries is solved, thus improving the reliability and safety of the battery.
CN116134633BActive Publication Date: 2026-06-02PANASONIC ENERGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PANASONIC ENERGY CO LTD
- Filing Date
- 2021-07-30
- Publication Date
- 2026-06-02
Smart Images
Figure CN116134633B_ABST
Abstract
The present application aims to provide a nonaqueous electrolyte secondary battery capable of inhibiting damage to an electrode body in the vicinity of the end of an insulating tape due to repeated charging and discharging. A nonaqueous electrolyte secondary battery (10) is characterized by comprising an outer package body (15), a wound electrode body (14) obtained by winding a positive electrode (11) and a negative electrode (12) with a separator (13) interposed therebetween, housed in the outer package body (15), and an insulating tape attached to the electrode body (14), the insulating tape having a base material layer and an adhesive layer provided on a main surface of the base material layer, a side surface of the base material layer being inclined non-perpendicularly with respect to the main surface.
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