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Patent Searching and Data


Title:
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/187755
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to prevent, in a nonaqueous electrolyte secondary battery, a tape adhered to an outermost peripheral surface of an electrode group from breaking due to charging and discharging. A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure includes a winding-type electrode group (14) and tapes (40), (41) adhered to an outermost peripheral surface of the electrode group (14) so that an electrode group winding end E is fixed to the outermost peripheral surface of the electrode group (14). The tapes (40), (41) include: two adhesive regions (42), (43) including a substrate layer and an adhesive layer; and a non-adhesive region (44) sandwiched between the two adhesive regions (42), (43) and consisting only of the substrate layer. The non-adhesive region (44) is disposed so as to extend across the winding end E, which is positioned on the outermost periphery of the electrode group (14), in the winding direction.

Inventors:
KOBAYASHI KEI
MIZAWA ATSUSHI
NAKAO TAKAKI
Application Number:
JP2019/005594
Publication Date:
October 03, 2019
Filing Date:
February 15, 2019
Export Citation:
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Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M10/0587; H01M2/14; H01M2/16; H01M2/26; H01M2/34; H01M10/052
Foreign References:
JP2006302801A2006-11-02
JP2013254561A2013-12-19
JPH09161814A1997-06-20
JP2013254561A2013-12-19
Attorney, Agent or Firm:
TOKUDA Yoshiaki et al. (JP)
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