Invention Grant
US08815427B2 Spirally wound non-aqueous electrolyte secondary battery having insulating members 有权
具有绝缘构件的螺旋卷绕非水电解质二次电池

  • Patent Title: Spirally wound non-aqueous electrolyte secondary battery having insulating members
  • Patent Title (中): 具有绝缘构件的螺旋卷绕非水电解质二次电池
  • Application No.: US13415563
    Application Date: 2012-03-08
  • Publication No.: US08815427B2
    Publication Date: 2014-08-26
  • Inventor: Masaki Machida
  • Applicant: Masaki Machida
  • Applicant Address: JP Tokyo
  • Assignee: Sony Corporation
  • Current Assignee: Sony Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: K&L Gates LLP
  • Priority: JP2007-122224 20070507
  • Main IPC: H01M4/00
  • IPC: H01M4/00
Spirally wound non-aqueous electrolyte secondary battery having insulating members
Abstract:
A spirally-wound non-aqueous electrolyte secondary battery including a staked electrode assembly is disclosed. The stacked electrode assembly has first and second current collectors facing region disposed at a winding start end and at a winding terminal end, respectively. A positive electrode current collector exposed portion and a negative electrode current collector exposed portion face each other through the separator in each of the first and second current collector facing regions. At least one of the positive or negative electrode current collector exposed portion has a first insulating member formed thereon in the first current collector facing region at the winding start end. At least one of the positive or negative electrode current collector exposed portion has a second insulating member formed thereon in the second current collector facing region at the winding terminal end.
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