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US 10,950,895 B2Granted
Electrolyte for lithium secondary battery and lithium secondary battery including the same
AssigneeLG Chem, Ltd.
InventorsJeong Woo Oh, Kyoung Ho Ahn, Jun Hyeok Han, Chui Haeng Lee
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Abstract
An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In an embodiment, an electrolyte for a lithium secondary battery includes a lithium salt, an organic solvent, and an oligomer represented by Formula 1 described in the present specification or a polymer derived from the oligomer represented by Formula 1. A lithium secondary battery including the electrolyte for a lithium secondary battery is improved by suppressing reactivity of lithium metal.
Claims16
An electrolyte for a lithium secondary battery, the electrolyte comprising:
- a lithium salt;
- an organic solvent;
- and
- an oligomer represented by Formula 1 or a polymer derived from the oligomer represented by Formula 1:
- wherein, in Formula 1,
- R1 and R2 are each independently a substituted or unsubstituted alkylene group having 1 to 5 carbon atoms,
- R3 and R4 are each independently hydrogen or a substituted or unsubstituted alkyl group having 1 to 3 carbon atoms,
- R5 is hydrogen or a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms,
- R′ is an aliphatic hydrocarbon group or an aromatic hydrocarbon group,
- z and x are the numbers of repeating units,
- z is an integer of 1 to 10,
- x is an integer of 1 to 15, and
- n is an integer of 1 to 3.
10 more elements
Dependencies are inferred from the claim text.