Title:
LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/030781
Kind Code:
A1
Abstract:
Provided is a lithium secondary battery, and the lithium secondary battery comprises: an electrolyte comprising a lithium salt, a non-aqueous organic solvent, and an additive including a compound represented by following formula 1; a negative electrode comprising a negative active material including a carbon-based material and a lithium titanium oxide; and a positive electrode comprising a positive electrode active material, wherein the content of the additive including the compound represented by formula 1 is 0.1 wt% or more and less than 10 wt% with respect to the total weight of the lithium salt and the non-aqueous organic solvent, and the content of the lithium titanium oxide is 0.1 wt% or more and less than 2 wt% with respect to the total weight of the negative active material.
Inventors:
KIM DAHYUN (KR)
KOH SUJEONG (KR)
KIM MYUNGHOON (KR)
KIM SANGHYUNG (KR)
KIM SANGHOON (KR)
PARK HYEJIN (KR)
OH SEUNGRYONG (KR)
KOH SUJEONG (KR)
KIM MYUNGHOON (KR)
KIM SANGHYUNG (KR)
KIM SANGHOON (KR)
PARK HYEJIN (KR)
OH SEUNGRYONG (KR)
Application Number:
PCT/KR2021/008855
Publication Date:
February 10, 2022
Filing Date:
July 12, 2021
Export Citation:
Assignee:
SAMSUNG SDI CO LTD (KR)
International Classes:
H01M10/0567; H01M4/36; H01M4/485; H01M4/587; H01M10/0525; H01M10/0569
Foreign References:
| KR20130054214A | 2013-05-24 | |||
| JP2001216962A | 2001-08-10 | |||
| JP6332033B2 | 2018-05-30 | |||
| JP2000285928A | 2000-10-13 |
Other References:
ABOUIMRANE, A. ; BELHAROUAK, I. ; AMINE, K.: "Sulfone-based electrolytes for high-voltage Li-ion batteries", ELECTROCHEMISTRY COMMUNICATIONS, ELSEVIER AMSTERDAM, NL, vol. 11, no. 5, 1 May 2009 (2009-05-01), NL , pages 1073 - 1076, XP026057211, ISSN: 1388-2481, DOI: 10.1016/j.elecom.2009.03.020
Attorney, Agent or Firm:
PANKOREA PATENT AND LAW FIRM (KR)
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