Invention Grant
- Patent Title: Method for producing electrode
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Application No.: US17817407Application Date: 2022-08-04
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Publication No.: US12027689B2Publication Date: 2024-07-02
- Inventor: Tomofumi Hirukawa , Kengo Haga
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota
- Agency: Dickinson Wright, PLLC
- Priority: JP 21142874 2021.09.02
- Main IPC: H01M4/04
- IPC: H01M4/04 ; H01M4/66 ; H01M4/02

Abstract:
A main object of the present disclosure is to provide a method for producing an electrode of which uncoated part can stretch while inhibiting breakage. The present disclosure achieves the object by providing a method for producing an electrode, the method including: a preparing step of preparing a precursor sheet including a metal foil, and a coated part and an uncoated part, arranged on the metal foil; a coated part pressing step of pressing the coated part in a thickness direction; and an uncoated part pressing step of pressing the uncoated part in the thickness direction, before or after the coated part pressing step; wherein the coated part contains an electrode material including at least an active material; the uncoated part does not contain the electrode material, and is arranged in an edge of the coated part; and in the uncoated part pressing step, the uncoated part is roll-pressed by a pair of an elastic roll including a shaft body and an elastic body covering the shaft body, while the uncoated part is pushed against the thickness direction.
Public/Granted literature
- US20230079146A1 METHOD FOR PRODUCING ELECTRODE Public/Granted day:2023-03-16
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