Title:
SEPARATOR FOR POWER STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/196120
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a separator which is for a power storage device, and which has high strength and can be thinned. The separator for a power storage device has a microporous membrane containing polyolefin as a main component, wherein the melt tension of the microporous membrane as measured at a temperature of 230℃ is 30 mN or less, and the melt flow rate (MFR) of the microporous membrane as measured under a load of 2.16 kg and at a temperature of 230℃ is 0.9 g/10 min or less.
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Inventors:
TAKAHASHI MASAKI (JP)
TAGAWA TOMOYA (JP)
TAGAWA TOMOYA (JP)
Application Number:
PCT/JP2020/011849
Publication Date:
October 01, 2020
Filing Date:
March 17, 2020
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
B32B5/32; B32B27/32; C08J9/00; H01G9/02; H01G11/52; H01M50/409; H01M50/489
Domestic Patent References:
WO2017047576A1 | 2017-03-23 | |||
WO2007015416A1 | 2007-02-08 |
Foreign References:
JP2011256258A | 2011-12-22 | |||
JP2018200796A | 2018-12-20 | |||
JP2006016550A | 2006-01-19 | |||
JP2014181250A | 2014-09-29 | |||
JP2012117078A | 2012-06-21 | |||
JP2018030992A | 2018-03-01 | |||
JP2013517152A | 2013-05-16 | |||
JP2016022676A | 2016-02-08 | |||
JP2012092286A | 2012-05-17 |
Other References:
See also references of EP 3950305A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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