• Patent Title: Current collector including opening formation portion and battery using same
  • Application No.: US16641052
    Application Date: 2018-09-14
  • Publication No.: US11837689B2
    Publication Date: 2023-12-05
  • Inventor: Kazuhiko Inoue
  • Applicant: NEC Corporation
  • Applicant Address: JP Tokyo
  • Assignee: NEC CORPORATION
  • Current Assignee: NEC CORPORATION
  • Current Assignee Address: JP Tokyo
  • Agency: Sughrue Mion, PLLC
  • Priority: JP 17181438 2017.09.21
  • International Application: PCT/JP2018/034147 2018.09.14
  • International Announcement: WO2019/059117A 2019.03.28
  • Date entered country: 2020-02-21
  • Main IPC: H01M10/0585
  • IPC: H01M10/0585 H01M4/74 H01M4/02
Current collector including opening formation portion and battery using same
Abstract:
The purpose of the present invention is to provide a current collector that has high strength and is easily impregnated with an electrolyte. This current collector is provided with an opening formation portion provided with a plurality of openings, the current collector being characterized in that a protruding portion is formed at the tip of each opening, and only partial locations of the opening formation portion reach an end surface of the current collector and the other locations thereof do not reach the end surface.
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