Title:
MULTILAYER BODY FOR SECONDARY BATTERIES, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/153516
Kind Code:
A1
Abstract:
A multilayer body for secondary batteries, said multilayer body being obtained by stacking an electrode and a separator, with a bonding material being interposed therebetween. With respect to the shear peel strength between the electrode and the separator of this multilayer body, if A (mN/mm2) is the value measured while changing the temperature, B (mN/mm2) is the maximum thermal shrinkage force of the separator as determined by means of thermomechanical analysis, and α (°C) is the thermal shrinkage end temperature at which the thermal shrinkage force of the separator as determined by means of thermomechanical analysis reaches a value (mN/mm2) that is higher, by 20%, than the value (mN/mm2) of the thermal shrinkage force at 30°C, the value of A satisfies A > B within the temperature range of from 25°C to the thermal shrinkage end temperature α°C.
Inventors:
SATO MASANOBU (JP)
OGIHARA TASUKU (JP)
OGIHARA TASUKU (JP)
Application Number:
PCT/JP2021/002493
Publication Date:
August 05, 2021
Filing Date:
January 25, 2021
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
H01M10/058; H01M4/02; H01M4/13; H01M10/04; H01M50/409
Domestic Patent References:
| WO2019221056A1 | 2019-11-21 | |||
| WO2019065130A1 | 2019-04-04 | |||
| WO2019188719A1 | 2019-10-03 |
Foreign References:
| JP2013219006A | 2013-10-24 | |||
| JP2013145763A | 2013-07-25 | |||
| JP2012204303A | 2012-10-22 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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