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US 2019/0103634 A1Published application
Electrolyte for Lithium Secondary Battery and Lithium Secondary Battery Containing the Same
AssigneeSK Innovation Co., Ltd.
InventorsJin Sung Kim, Cheol Woo Kim, Seung Yon Oh, Kwang Kuk Lee, Seong IL Lee
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Abstract
Provided are an electrolyte for a lithium secondary battery, and a lithium secondary battery containing the same. An embodiment of the present invention is directed to providing an electrolyte for a lithium secondary battery having excellent high-temperature and low-temperature characteristics while properly maintaining basic performance such as high rate charge and discharge characteristics, life cycle characteristics, and the like, and a lithium secondary battery containing the same.
Claims13
An electrolyte for a secondary battery, comprising:
- a lithium salt;
- a non-aqueous organic solvent;
- and
- additives comprising a compound represented by the following Chemical Formula 2 or 3, vinylidene carbonate based compounds, and at least one selected from the group consisting of oxalatoborate based compounds and compounds containing a sulfinyl group.
- wherein, in Chemical Formulas 2 and 3,
- R11 to R16 are each independently hydrogen, cyano, halo(C1-C10)alkyl, (C1-C10)alkyl, (C1-C10)alkoxy, (C1-C10)alkoxycarbonyl, (C3-C12)cycloalkyl, (C3-C12)heterocycloalkyl, (C6-C12)aryl, (C3-C12)heteroaryl, or (C6-C12)aryl(C1-C10)alkyl.
3 more elements
Dependencies are inferred from the claim text.