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US 11,081,728 B2Granted
Non-aqueous electrolyte solution additive, and non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery which include the same
AssigneeLG Chem, Ltd.
InventorsHyun Seung Kim, Sung Hoon Yu
Life of this patent
Estimating the term…
Abstract
The present invention relates to a non-aqueous electrolyte solution additive, and a non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery which include the same, and particularly, to a non-aqueous electrolyte solution additive including a compound based on a cyclic sulfur structure, and a secondary battery in which low-voltage failure due to metal dissolution may be improved by including the same.
Claims15
A non-aqueous electrolyte solution additive which is a compound represented by Formula 1:
- wherein, in Formula 1,
- R1 to R5 are each independently C—(R)2 or C═O, wherein R in each R1 to R5 when being C—(R)2 is same or different, and is selected from hydrogen or an alkyl group having 1 to 3 carbon atoms, and at least one of R1 to R5 is C—(R)2 or C═O, wherein R is an alkyl group having 1 to 3 carbon atoms.
Dependencies are inferred from the claim text.