Title:
POLYOLEFIN MICROPOROUS MEMBRANE, AND ELECTRICITY STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/138293
Kind Code:
A1
Abstract:
This polyolefin microporous membrane has a layered structure comprising a first layer configured from polypropylene resin, a second layer that is configured from polyethylene resin and is layered on the first layer, and a third layer that is configured from polypropylene resin and is layered on the second layer, the thickness of the first layer and the thickness of the third layer each being less than the thickness of the second layer, and the layered structure having a thickness of 16 μm or less, a porosity of 40-70%, and a surface aperture ratio of 10-30%.
Inventors:
ADACHI TAIGA (JP)
SAKIMOTO RYOU (JP)
SAKIMOTO RYOU (JP)
Application Number:
PCT/JP2019/051134
Publication Date:
July 02, 2020
Filing Date:
December 26, 2019
Export Citation:
Assignee:
UBE INDUSTRIES (JP)
International Classes:
B32B5/18; B32B27/32; H01G11/52; H01M50/409; H01M50/489; H01M50/491
Foreign References:
| JP2017141428A | 2017-08-17 | |||
| JP2016014107A | 2016-01-28 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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