Title:
SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2020/130723
Kind Code:
A1
Abstract:
Provided is a separator for an electrochemical device, comprising: a porous polymer substrate having a plurality of pores; and a porous coating layer formed on at least one surface of the porous polymer substrate, and including boehmite particles and a binder polymer positioned on a part or all of the boehmite particles to connect and fix the particles, wherein the boehmite particles have an average particle diameter of 2.0 ㎛ to 3.5 ㎛ and a specific surface area of 4.0 m2/g to 4.5 m2/g, wherein the thickness of one surface of the porous coating layer is 2 ㎛ to 10 ㎛.
Inventors:
SUNG IN-HYOUK (KR)
KWON HYE-JIN (KR)
SUNG DONG-WOOK (KR)
KWON HYE-JIN (KR)
SUNG DONG-WOOK (KR)
Application Number:
PCT/KR2019/018234
Publication Date:
June 25, 2020
Filing Date:
December 20, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01G11/52; H01M10/052; H01M50/443; H01M50/489
Foreign References:
| JP5588437B2 | 2014-09-10 | |||
| KR20160109669A | 2016-09-21 | |||
| CN106684293A | 2017-05-17 | |||
| CN107275550A | 2017-10-20 | |||
| KR20180018408A | 2018-02-21 | |||
| KR20180167923A | 2018-12-21 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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