Title:
SEPARATOR FOR NONAQUEOUS ELECTROLYTIC BATTERY AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/176698
Kind Code:
A1
Abstract:
The present invention pertains to a separator that is for a nonaqueous electrolytic battery and that comprises a porous film formed of an ethylene-vinyl alcohol copolymer, wherein in the porous film, the proportion of the volume of pores having a pore diameter in the range of 0.1-1 μm with respect to the volume of pores having a pore diameter in the range of 0.01-10 μm is 80% or more in a pore distribution as measured by mercury intrusion.
Inventors:
OHTA YUKI (JP)
IWASAKI HIDEHARU (JP)
IWASAKI HIDEHARU (JP)
Application Number:
PCT/JP2019/008941
Publication Date:
September 19, 2019
Filing Date:
March 06, 2019
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
H01M50/409; H01M50/489; H01M50/491
Foreign References:
| JP2000501752A | 2000-02-15 | |||
| JPH11213982A | 1999-08-06 | |||
| JPS5649157A | 1981-05-02 | |||
| JPS5377883A | 1978-07-10 | |||
| JPS49113859A | 1974-10-30 | |||
| JPH05293344A | 1993-11-09 |
Other References:
NAKAMAE, KATSUHIKO ET AL.: "Effect of the Coagulation Temperature on Membrane Properties of Ethylene-Vinyl Alcohol Copolymer", KOBUNSHI RONBUNSHU, vol. 42, no. 3, 1985, pages 143 - 149, XP055640472
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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