Title:
PRE-LITHIATION USING LITHIUM METAL AND INORGANIC MATERIAL COMPOSITE LAYER
Document Type and Number:
WIPO Patent Application WO/2019/031732
Kind Code:
A1
Abstract:
The present invention is directed to a method for pre-lithiation of a negative electrode for a secondary battery, the method comprising the steps of: placing and dispersing a lithium metal powder, an inorganic material powder, and a binder in a solvent to prepare a mixture solution; and forming a lithium metal-inorganic material composite layer on a negative electrode by using the mixture solution. The present invention provides a method for pre-lithiation of a negative electrode having high capacity through a simple process. A negative electrode for a secondary battery, which is manufactured by the pre-lithiation method provided in the present invention, has improved initial irreversibility, and a secondary batter manufactured by using such a negative electrode for a secondary battery has excellent charging and discharging efficiency.
Inventors:
WOO SANG WOOK (KR)
KIM EUN KYUNG (KR)
KANG YOON AH (KR)
SONG JUN HYUK (KR)
CHAE OH BYONG (KR)
KIM EUN KYUNG (KR)
KANG YOON AH (KR)
SONG JUN HYUK (KR)
CHAE OH BYONG (KR)
Application Number:
PCT/KR2018/008347
Publication Date:
February 14, 2019
Filing Date:
July 24, 2018
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M4/139; H01M4/04; H01M4/1391; H01M10/0525
Foreign References:
| KR20050104625A | 2005-11-03 | |||
| KR20150020022A | 2015-02-25 | |||
| KR20100127730A | 2010-12-06 | |||
| CN105449165A | 2016-03-30 | |||
| KR20160037782A | 2016-04-06 | |||
| KR20170102252A | 2017-09-08 | |||
| US20150357628A1 | 2015-12-10 |
Other References:
See also references of EP 3570349A4
Attorney, Agent or Firm:
KIM, Hong Gyun (KR)
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