Title:
CROSSLINKED POLYOLEFIN SEPARATOR AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/022848
Kind Code:
A1
Abstract:
The present invention relates to: a crosslinked polyolefin separator, of which the number of gels having a long side length of 50 μm or more per m2 of the separator is in a range of 0-3 and the standard deviation of absorbance ratio between the center and the side of the separator is in a range of 0.01-0.5; and, as an aspect of a method for manufacturing such a crosslinked polyolefin separator, a manufacturing method for a crosslinked polyolefin separator, the method comprising the steps of: (S1) preparing a polyolefin porous membrane; and (S2) applying a coating solution on at least one surface of the porous membrane, the coating solution containing an initiator and an alkoxy group-containing vinyl silane. The present invention can provide a crosslinked polyolefin separator in which, according to the manufacturing method, the coating solution can penetrate into the exposed pores to uniformly induce a silane crosslinking reaction even within the pores.
Inventors:
LEE JOO-SUNG (KR)
RYU BI-OH (KR)
BAE WON-SIK (KR)
LEE A-YOUNG (KR)
SONG HEON-SIK (KR)
RYU BI-OH (KR)
BAE WON-SIK (KR)
LEE A-YOUNG (KR)
SONG HEON-SIK (KR)
Application Number:
PCT/KR2019/009361
Publication Date:
January 30, 2020
Filing Date:
July 26, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
B05D7/24; B29C48/00; C08J7/16; C08J9/36; C09D4/00; C09D143/04; G01N3/30; H01G11/52; H01M50/403; H01M50/406; H01M50/417; H01M50/489
Foreign References:
| KR20160097958A | 2016-08-18 | |||
| KR20180033487A | 2018-04-03 | |||
| JPH11172036A | 1999-06-29 | |||
| KR20180024101A | 2018-03-08 | |||
| KR20160038918A | 2016-04-08 | |||
| KR20180087451A | 2018-08-01 | |||
| KR20180087450A | 2018-08-01 | |||
| KR20180108560A | 2018-10-04 |
Other References:
See also references of EP 3675233A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
Download PDF: