Title:
SEPARATOR HAVING LITHIUM LAYER ON SURFACE THEREOF, PREPARATION METHOD THEREFOR AND LITHIUM-ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/227703
Kind Code:
A1
Abstract:
Disclosed are a separator having a lithium layer on a surface thereof, a preparation method therefor and a lithium-ion battery. The separator having a lithium layer on a surface thereof of the present invention comprises: a separator; a lithiophilic pretreated layer positioned on one surface of the separator; and a lithium layer deposited on the pretreated layer. By means of the introduction of a lithiophilic compound or functional group on a surface of the separator and in combination with lithium deposition technology, a uniform ultra-thin plated lithium layer is formed on the surface of the separator. The ultra-thin plated lithium layer can effectively supplement lithium without blocking micropores of the separator, and improves the tensile strength of the separator, thus improving the performance of the lithium-ion battery significantly.
Inventors:
WANG YALONG (CN)
CHEN QIANG (CN)
MU HANBO (CN)
CHEN QIANG (CN)
MU HANBO (CN)
Application Number:
PCT/CN2018/101934
Publication Date:
December 05, 2019
Filing Date:
August 23, 2018
Export Citation:
Assignee:
CHINA ENERGY CAS TECH CO LTD (CN)
International Classes:
H01M50/403; H01M50/434; H01M50/443; H01M50/449; H01M50/489
Foreign References:
| CN107210412A | 2017-09-26 | |||
| CN103972446A | 2014-08-06 | |||
| CN106684291A | 2017-05-17 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
Download PDF:
Previous Patent: DATA PROCESSING METHOD AND APPARATUS, AND COMPUTER DEVICE AND STORAGE MEDIUM
Next Patent: POWER ASSIST APPARATUS
Next Patent: POWER ASSIST APPARATUS