Title:
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/244817
Kind Code:
A1
Abstract:
This nonaqueous electrolyte secondary battery includes a winding-type electrode group (14) which comprises a positive electrode plate and a negative electrode plate (12), and tape (40, 41) adhered on the outermost peripheral surface of the electrode group. A current collector of the negative electrode plate is exposed in at least part of the outermost peripheral surface of the electrode group in the winding direction, and the current collector contacts the case body. The tape comprises a base material layer and an adhesive layer arranged continuously in the winding direction on the inner surface of the wound base material layer. Dividing the region seen from the wound inner surface of the tape (40, 41) into first regions (42) configured from the base material layer and second regions (43) configured from the base material layer and the adhesive layer, the first regions (42) are interposed between second regions (42) in at least part of the area of the tape in the winding direction.
Inventors:
MIZAWA ATSUSHI
KOBAYASHI KEI
NAKAO TAKAKI
KOBAYASHI KEI
NAKAO TAKAKI
Application Number:
PCT/JP2019/023825
Publication Date:
December 26, 2019
Filing Date:
June 17, 2019
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M10/0587; H01M50/534; H01M50/536
Domestic Patent References:
| WO2009144919A1 | 2009-12-03 |
Foreign References:
| JP2010092673A | 2010-04-22 | |||
| JP2011077279A | 2011-04-14 | |||
| JP2015008140A | 2015-01-15 | |||
| JP2016047929A | 2016-04-07 | |||
| JPH09161814A | 1997-06-20 | |||
| JP2009199974A | 2009-09-03 |
Other References:
See also references of EP 3813177A4
Attorney, Agent or Firm:
TOKUDA Yoshiaki et al. (JP)
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