Title:
NON-AQUEOUS ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2017/204599
Kind Code:
A1
Abstract:
The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, which contains a pyridine boron-based compound as an additive, and a lithium secondary battery comprising the same and, more particularly, to a non-aqueous electrolytic solution which contains at least two kinds of lithium salts and a pyridine boron-based compound, and a lithium secondary battery comprising the non-aqueous electrolytic solution together with a negative electrode which contains a lithium titanium oxide (LTO) as a negative electrode active material, thereby having improved effects of suppressing resistance increase and suppressing gas generation after high temperature storage.
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Inventors:
AHN KYOUNG HO (KR)
JUNG YI JIN (KR)
JEONG YU RA (KR)
LEE CHUL HAENG (KR)
LIM YOUNG MIN (KR)
JUNG YI JIN (KR)
JEONG YU RA (KR)
LEE CHUL HAENG (KR)
LIM YOUNG MIN (KR)
Application Number:
PCT/KR2017/005548
Publication Date:
November 30, 2017
Filing Date:
May 26, 2017
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/0567; H01M2/10; H01M4/36; H01M4/485; H01M10/0525; H01M10/0568; H01M10/0569
Foreign References:
| KR20150090075A | 2015-08-05 | |||
| CN105591157A | 2016-05-18 |
Other References:
NIE, M. ET AL.: "Development of Pyridine-boron Trifluoride Electrolyte Additives for Lithium-ion Batteries", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 162, no. 7, 2015, pages A1186 - A1195, XP055407835
NIE, M. ET AL.: "A Comparative Study of Pyridine-Boron Trifluoride, Pyrazine-(BF3) 2 and Triazine-(BF3) 3 as Electrolyte Additives for Lithium-Ion Cells", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 162, no. 10, 2015, pages A2066 - A2074, XP055442475
HALL, D. S. ET AL.: "Surface-electrolyte Interphase Formation in Lithium-ion Cells Containing Pyridine Adduct Additives", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 163, no. 5, 17 February 2016 (2016-02-17), pages A773 - A780, XP055302948
NIE, M. ET AL.: "A Comparative Study of Pyridine-Boron Trifluoride, Pyrazine-(BF3) 2 and Triazine-(BF3) 3 as Electrolyte Additives for Lithium-Ion Cells", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 162, no. 10, 2015, pages A2066 - A2074, XP055442475
HALL, D. S. ET AL.: "Surface-electrolyte Interphase Formation in Lithium-ion Cells Containing Pyridine Adduct Additives", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 163, no. 5, 17 February 2016 (2016-02-17), pages A773 - A780, XP055302948
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (KR)
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