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US 11,539,075 B2Granted
Electrolyte for lithium secondary battery, and lithium secondary battery comprising same
AssigneeSamsung SDI Co., Ltd.
InventorsHyunbong Choi, Pavel Shatunov, Olga Tsay, Aeran Kim, Woo Cheol Shin, Jeongmin Shin
Life of this patent
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Abstract
Disclosed are an electrolyte for a lithium secondary battery and a lithium secondary battery comprising the same. The electrolyte for a lithium secondary battery, according to an embodiment, can comprise: a nonaqueous organic solvent; a lithium salt; a first additive comprising a compound represented by a specific chemical formula; and a second additive including at least one of lithium difluorophosphate (LiPO2F2), a cyclic carbonate including a fluorine atom, and a dinitrile compound.
Claims17
An electrolyte for a lithium secondary battery comprising
- a non-aqueous organic solvent;
- a lithium salt;
- a first additive including compound represented by Chemical Formula 1;
- and
- a second additive comprising at least one of lithium difluorophosphate (LiPO2F2), a cyclic carbonate including a fluorine atom, and a dinitrile compound,
- wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4—)n and n is an integer of 1 to 10.
3 more elements
Dependencies are inferred from the claim text.