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US 10,720,665 B2Granted
Lithium secondary battery including a perfluoro nitrile compound
AssigneeSoulbrain Co., Ltd.
InventorsMyung Hoon Jeong, Jong Hyun Lee, Seung Hoon Jung
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Abstract
The present invention relates to an electrolyte for a lithium secondary battery, containing, as an electrolyte additive, at least one compound selected from the group consisting of compounds represented by chemical formulas 1 to 4 below, and can provide a lithium secondary battery which has improved anodic film forming characteristics and battery resistance characteristics at high voltages.
Claims12
An electrolyte for a lithium secondary battery comprising:
- a perfluoro nitrile compound as an electrolyte additive,
- wherein the perfluoro nitrile compound is selected from the group consisting of a perfluoro dinitrile compound, a perfluoro trinitrile compound, a perfluoro tetranitrile compound, and a combination thereof.
A lithium secondary battery comprising:
- a cathode including a cathode active material, an anode disposed opposite to the cathode and including an anode active material, and
- an electrolyte interposed between the cathode and the anode, wherein the electrolyte includes a perfluoro nitrile compound as an electrolyte additive,
- wherein the perfluoro nitrile compound is selected from the group consisting of a perfluoro dinitrile compound, a perfluoro trinitrile compound, a perfluoro tetranitrile compound, and a combination thereof.
Dependencies are inferred from the claim text.