Title:
ULTRA-FINE FIBROUS POROUS SEPARATOR HAVING SHUTDOWN FUNCTION AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2011/115453
Kind Code:
A2
Abstract:
The present invention relates to an ultra-fine fibrous porous separator having a shutdown function and a method for producing same, wherein when a heat-resistant first porous membrane and the non-heat-resistant second porous membrane are calendered into a multi-layer structure and when heat is generated by sudden ion migration to localised pores or the entire part of the separator reaches a shutdown temperature, such that either part or all of a non-heat-resistant second porous membrane is melted and shut down, thereby blocking pores needing to be blocked. The ultra-fine fibrous porous separator having a shutdown function of the present invention comprises: a first porous membrane having a porous fibrous form in which the ultra-fine fibrous forms of a heat-resistant polymer and a swellable polymer coexist by the air electrospinning (AES) of a liquid mixture of a heat-resistant polymeric material having a melting point of at least 180°C and a swellable polymeric material; and a second porous membrane which is laminated onto one surface of the first porous membrane and which has an ultra-fine fibrous form obtained by the air electrospinning of a non-heat-resistant polymeric material having a melting point of not higher than 150°C.
Inventors:
SEO IN YONG (KR)
JO BYUNG GWANG (KR)
JUNG YONG SIK (KR)
KIM YUN HYE (KR)
KIM CHEOL HYEON (KR)
JO BYUNG GWANG (KR)
JUNG YONG SIK (KR)
KIM YUN HYE (KR)
KIM CHEOL HYEON (KR)
Application Number:
PCT/KR2011/001893
Publication Date:
September 22, 2011
Filing Date:
March 18, 2011
Export Citation:
Assignee:
AMOGREENTECH CO LTD (KR)
SEO IN YONG (KR)
JO BYUNG GWANG (KR)
JUNG YONG SIK (KR)
KIM YUN HYE (KR)
KIM CHEOL HYEON (KR)
SEO IN YONG (KR)
JO BYUNG GWANG (KR)
JUNG YONG SIK (KR)
KIM YUN HYE (KR)
KIM CHEOL HYEON (KR)
International Classes:
H01M10/02; D04H3/00; H01M10/0525; H01M50/414; H01M50/42; H01M50/426; H01M50/457; H01M50/489; H01M50/494
Foreign References:
| KR20060060188A | 2006-06-05 | |||
| JP2009104834A | 2009-05-14 | |||
| KR20080045289A | 2008-05-22 | |||
| JPH1140131A | 1999-02-12 | |||
| JP2002237333A | 2002-08-23 |
Attorney, Agent or Firm:
LEE, JAE HWA (KR)
이재화 (KR)
이재화 (KR)
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Claims: