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Title:
POROUS FILM AND ELECTRICITY STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/073781
Kind Code:
A1
Abstract:
A porous film comprising a microporous film in which fibrils arranged in a direction perpendicular to the machine direction have a diameter of 50-500 nm, and which has pore sizes of 50-200 nm, and a surface porosity of 5-40%. The microporous film of the porous film is preferably formed of a polyethylene resin and/or a polypropylene resin.

Inventors:
SAKIMOTO RYO (JP)
MATSUBAYASHI AKIHIRO (JP)
OHYA SHUSEI (JP)
ADACHI TAIGA (JP)
Application Number:
PCT/JP2016/082259
Publication Date:
May 04, 2017
Filing Date:
October 31, 2016
Export Citation:
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Assignee:
UBE INDUSTRIES (JP)
International Classes:
C08J9/00; B32B27/32; H01G11/52; H01M10/052; H01M10/0566; H01M10/0568; H01M50/417; H01M50/489; H01M50/491
Domestic Patent References:
WO2015069008A12015-05-14
Foreign References:
JPS57117951A1982-07-22
JPH07228718A1995-08-29
JP2010053245A2010-03-11
JP2010092882A2010-04-22
JP2011192529A2011-09-29
JP5745174B22015-07-08
JP2004307711A2004-11-04
JP2001229971A2001-08-24
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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