Invention Grant
US08765023B2 Composition for preparing separator, method for preparing separator, and electrochemical device having separator prepared therefrom
有权
用于制备隔膜的组合物，用于制备隔膜的方法和具有由其制备的隔膜的电化学装置
- Patent Title: Composition for preparing separator, method for preparing separator, and electrochemical device having separator prepared therefrom
- Patent Title (中): 用于制备隔膜的组合物，用于制备隔膜的方法和具有由其制备的隔膜的电化学装置
-
Application No.: US13930970Application Date: 2013-06-28
-
Publication No.: US08765023B2Publication Date: 2014-07-01
- Inventor: Bong-Tae Kim , Heon-Sik Song , Cheon-Il Park
- Applicant: Bong-Tae Kim , Heon-Sik Song , Cheon-Il Park
- Applicant Address: KR Seoul
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR Seoul
- Agency: Rothwell, Figg, Ernst & Manbeck, P.C.
- Priority: KR10-2011-0066025 20110704; KR10-2012-0048257 20120507
- Main IPC: H01B1/00
- IPC: H01B1/00 ; H01M2/16 ; C08G63/48 ; C08F8/00 ; H01M2/14
Abstract:
The present invention relates to a composition for preparing a separator for an electrochemical device, a method preparing a separator for an electrochemical device, and an electrochemical device having a separator prepared therefrom, more particularly, a composition for preparing a separator for an electrochemical device, comprising a polyolefin, a first diluent, and a second diluent, wherein an interaction energy between the first diluent and the second diluent is in the range of 2 to 3.5 cal/cm3, a method preparing a separator for an electrochemical device using the composition, and an electrochemical device having a separator prepared therefrom. In accordance with the present invention, the pore size of a polyolefin separator can be suitably controlled into a size desired by a user, and the high-temperature stability and mechanical property of the separator can be remarkably improved, thereby enhancing the life time and stability of an electrochemical device having the same.
Public/Granted literature
Information query
