• Patent Title: Electrode for electrochemical device, electrochemical device, and method of producing electrode for electrochemical device
  • Application No.: US16629564
    Application Date: 2018-07-17
  • Publication No.: US11387463B2
    Publication Date: 2022-07-12
  • Inventor: Yasuhiro IsshikiKenya 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
Electrode for electrochemical device, electrochemical device, and method of producing electrode for electrochemical device
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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