Title:
METHOD FOR MANUFACTURING SECONDARY BATTERY USING LITHIUM METAL AS NEGATIVE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2019/013478
Kind Code:
A2
Abstract:
The present invention relates to a method for manufacturing a secondary battery using a lithium metal as a negative electrode, and is directed to a method for manufacturing a lithium secondary battery, the method being characterized in that an oxide film on a surface of the lithium metal is removed by partial discharge before initial charge at the time of an activation process. Here, the discharge current density at the time of the partial discharge is preferably in a range of 0.01-3 mA/cm2. In the present invention, the oxide film formed on the surface of the lithium metal is removed through initial partial discharge, thereby minimizing a reduction in ion conductivity and allowing a lithium precipitation reaction to be uniform, leading to an improvement in battery cycle performance.
Inventors:
WOO KYUNG HWA (KR)
LEE JAE HYUN (KR)
HAH HOE JIN (KR)
YOON JONG KEON (KR)
LEE JAE HYUN (KR)
HAH HOE JIN (KR)
YOON JONG KEON (KR)
Application Number:
PCT/KR2018/007393
Publication Date:
January 17, 2019
Filing Date:
June 29, 2018
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M4/1395; H01M4/04; H01M4/38; H01M10/052; H01M50/204
Foreign References:
| KR20170087578A | 2017-07-31 |
Other References:
See also references of EP 3528322A4
Attorney, Agent or Firm:
KIM, Hong Gyun (KR)
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