Title:
METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY WITH IMPROVED HIGH-TEMPERATURE STORAGE CHARACTERISTICS
Document Type and Number:
WIPO Patent Application WO/2018/135915
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing a lithium secondary battery, the method comprising the steps of: preparing a lithium secondary battery comprising an electrode assembly comprising a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, a non-aqueous electrolytic liquid in which the electrode assembly is immersed, and a battery case accommodating the electrode assembly and the non-aqueous electrolytic liquid; performing formation of the lithium secondary battery by carrying out charge and discharge; and performing deaeration, wherein the positive electrode contains a positive electrode active material and a carbon nanotube as a conductor; the non-aqueous electrolytic liquid contains a lithium salt, an organic solvent, and monofluorobenzene as an additive; and the step for performing formation is carried out by charging to SOC 65% to SOC 80% while a pressure of 0.5-5 kgf/cm2 is applied at 60-80°C.
Inventors:
LEE JUNG MIN (KR)
LIM YOUNG MIN (KR)
LEE CHUL HAENG (KR)
AN YU HA (KR)
JUNG YI JIN (KR)
LIM YOUNG MIN (KR)
LEE CHUL HAENG (KR)
AN YU HA (KR)
JUNG YI JIN (KR)
Application Number:
PCT/KR2018/000954
Publication Date:
July 26, 2018
Filing Date:
January 22, 2018
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/44; H01M10/056; H01M10/0567; H01M10/0569; H01M10/52
Foreign References:
| CN104868169A | 2015-08-26 | |||
| US20070111093A1 | 2007-05-17 | |||
| US20160181659A1 | 2016-06-23 | |||
| JP2003022804A | 2003-01-24 | |||
| KR20070006253A | 2007-01-11 |
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (KR)
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