Invention Grant
- Patent Title: Electrode for electrochemical device, electrochemical device, and method of producing electrode for electrochemical device
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Application No.: US16629564Application Date: 2018-07-17
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Publication No.: US11387463B2Publication Date: 2022-07-12
- Inventor: Yasuhiro Isshiki , Kenya Sonobe
- Applicant: ZEON CORPORATION
- Applicant Address: JP Chiyoda-ku Tokyo
- Assignee: ZEON CORPORATION
- Current Assignee: ZEON CORPORATION
- Current Assignee Address: JP Chiyoda-ku Tokyo
- Agency: Kenja IP Law PC
- Priority: JPJP2017-146831 20170728
- International Application: PCT/JP2018/026773 WO 20180717
- International Announcement: WO2019/021891 WO 20190131
- Main IPC: H01M4/80
- IPC: H01M4/80 ; H01M4/62 ; H01M4/66 ; H01M4/02

Abstract:
Provided is an electrode for an electrochemical device that has excellent peel strength and can ensure a high level of safety of an electrochemical device. The electrode for an electrochemical device includes a current collector and an electrode mixed material layer on the current collector. The electrode mixed material layer contains an electrode active material, a binder, and a foaming agent. The binder is a polymer including a diene monomer unit and/or nitrile group-containing monomer unit, and in which the total proportion constituted by the diene monomer unit and nitrile group-containing monomer unit is 10 mass % to 80 mass %. Volume resistivity RA of a laminate of the electrode mixed material layer and current collector at 25° C. is 0.1 Ω·cm to 200 Ω·cm, and a ratio of volume resistivity RB of the laminate at 350° C. relative to volume resistivity RA of the laminate at 25° C. is 10 or more.
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