Title:
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/163392
Kind Code:
A1
Abstract:
Provided is a non-aqueous electrolyte secondary battery having a wound electrode member fixed with a winding-stop tape, wherein a good contact state is achieved between an exposed part of a negative current collector disposed on an outer-most peripheral surface of the electrode member and an inner peripheral surface of an exterior can. In a non-aqueous electrolyte secondary battery according to an embodiment, the wound electrode member (14) has on the outer-most peripheral surface an exposed part (42) of the negative current collector, and a tape (50) affixed so as to extend from a winding end-side end portion of a negative electrode across a winding end (14e) of the electrode member (14). The exposed part (42) abuts against the inner peripheral surface of the exterior can. The tape (50) has formed an easy-tear line (52) in an extension portion (51) extending from a position overlapping the winding end (14e) toward the side opposite to an inner winding direction.
Inventors:
UEDA TOMOMICHI
NAKAMURA MASAHIRO
MIZAWA ATSUSHI
NAKAMURA MASAHIRO
MIZAWA ATSUSHI
Application Number:
PCT/JP2019/002316
Publication Date:
August 29, 2019
Filing Date:
January 24, 2019
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M10/0587
Foreign References:
| KR20150034965A | 2015-04-06 | |||
| JP2004087325A | 2004-03-18 | |||
| JPH0547419A | 1993-02-26 | |||
| KR20040107999A | 2004-12-23 | |||
| JP2009117290A | 2009-05-28 | |||
| JP2012169063A | 2012-09-06 | |||
| JP2007226989A | 2007-09-06 |
Attorney, Agent or Firm:
TOKUDA Yoshiaki et al. (JP)
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