Non-aqueous electrolyte solution and lithium secondary battery including the same
AssigneeLG Chem, Ltd.
InventorsYoung Min Lim, Chul Haeng Lee, Doo Kyung Yang, Kyoung Ho Ahn, Gwang Yeon Kim
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Abstract
Provided are a non-aqueous electrolyte solution which includes a lithium salt including lithium bis(fluorosulfonyl)imide (LiFSI) and an additive including a vinylene carbonate-based compound and a sultone-based compound, and a lithium secondary battery including the non-aqueous electrolyte solution. The lithium secondary battery including the non-aqueous electrolyte solution of the present invention may improve low-temperature output characteristics, high-temperature cycle characteristics, output characteristics after high-temperature storage, and capacity characteristics.
Claims14
A non-aqueous electrolyte solution comprising:
- i) lithium bis(fluorosulfonyl)imide (LiFSI);
- ii) an electrolyte solution additive including a vinylene carbonate-based compound and a sultone-based compound;
- and
- iii) a non-aqueous organic solvent.
Dependencies are inferred from the claim text.