Lithium secondary battery

WO2026058445A1PCT designated stage Publication Date: 2026-03-19TERAWATT TECH KK
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-13
Publication Date
2026-03-19

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Abstract

The present invention provides a lithium secondary battery that has excellent stability and charge / discharge properties. The present invention relates to a lithium secondary battery including an electrode sheet comprising a current collector that has a resin layer and metal layers formed on both surfaces of the resin layer, and an active material layer that is formed on at least one surface of the current collector, wherein the current collector has creases, and the active material layer has a level difference at the surface of portions corresponding to the creases.
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Citation Information

Patent Citations

  • Battery manufacturing method

    JP2019186003A

  • Secondary battery, battery module, and vehicle

    JP2023042962A

  • Electrode body, electricity storage element, and electricity storage module

    WO2021192256A1

  • Lithium secondary battery

    WO2024079945A1