Title:
SEPARATION FILM FOR ELECTROCHEMICAL DEVICE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2014/084684
Kind Code:
A1
Abstract:
The present invention relates to a separation film for an electrochemical device and a method for manufacturing the same, wherein the pores of the separation film are formed to have a truncated cone shape in a thickness direction such that both ends of the pores have different diameters. Thus, since a surface having pores with larger diameters faces an anode, the present invention solves the technical problem of blocking of the separation film by a by-product during secondary battery storage and cycle tests and obtains long-term performance of an electrochemical device.
More Like This:
Inventors:
LEE JOO-SUNG (KR)
YOON SU-JIN (KR)
SUNG DONG-WOOK (KR)
HAN DA-KYUNG (KR)
KA KYUNG-RYUN (KR)
KIM JONG-HUN (KR)
YOON SU-JIN (KR)
SUNG DONG-WOOK (KR)
HAN DA-KYUNG (KR)
KA KYUNG-RYUN (KR)
KIM JONG-HUN (KR)
Application Number:
PCT/KR2013/011038
Publication Date:
June 05, 2014
Filing Date:
November 29, 2013
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M50/406; H01M50/409; H01M50/491
Domestic Patent References:
| WO2003058734A1 | 2003-07-17 |
Foreign References:
| KR20080007692A | 2008-01-23 | |||
| KR101040572B1 | 2011-06-16 | |||
| KR100925643B1 | 2009-11-06 | |||
| US20010041289A1 | 2001-11-15 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
특허법인 필앤온지 (KR)
특허법인 필앤온지 (KR)
Download PDF: