Title:
LITHIUM SECONDARY BATTERY WITH ENHANCED SAFETY
Document Type and Number:
WIPO Patent Application WO/2023/085638
Kind Code:
A1
Abstract:
The present invention relates to a secondary battery with enhanced high-temperature safety, the secondary battery using an additive of a specific component for a non-aqueous electrolyte together with a cathode active material including nickel and/or manganese of high concentration, so as to uniformly form a film on the surface of an electrode during battery activation, and thus can prevent the generation of a large amount of gas under a high-temperature condition, and enabling an increase in cell resistance and a deterioration in capacity due to the elution of metal ions from the electrode to be effectively prevented, and thus can effectively improve battery performance and high-temperature stability.
Inventors:
LEE WON TAE (KR)
AHN KYOUNG HO (KR)
LEE CHUL HAENG (KR)
HAN JUN HYEOK (KR)
SHIN WON KYUNG (KR)
JI SU HYEON (KR)
OH YOUNG HO (KR)
AHN KYOUNG HO (KR)
LEE CHUL HAENG (KR)
HAN JUN HYEOK (KR)
SHIN WON KYUNG (KR)
JI SU HYEON (KR)
OH YOUNG HO (KR)
Application Number:
PCT/KR2022/016119
Publication Date:
May 19, 2023
Filing Date:
October 21, 2022
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M10/0567; H01M4/38; H01M4/48; H01M4/505; H01M4/525; H01M4/58; H01M10/052
Foreign References:
| KR20140008264A | 2014-01-21 | |||
| KR20210031158A | 2021-03-19 | |||
| KR20150050508A | 2015-05-08 | |||
| KR20140038171A | 2014-03-28 | |||
| CN110551151A | 2019-12-10 | |||
| KR20210155470A | 2021-12-23 | |||
| KR20220135402A | 2022-10-07 |
Attorney, Agent or Firm:
KIM, Hong Gyun (KR)
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