Additive for electrolyte and electrolyte and lithium secondary battery

摘要

An additive, the additive being for an electrolyte for a lithium secondary battery and represented by Chemical Formula 1:;
R1 to R4 each independently being hydrogen or a non-polar hydrocarbon group, is disclosed. An electrolyte, the electrolyte being for a lithium secondary battery and including: a non-aqueous organic solvent; a lithium salt; and the additive is also disclosed. A lithium secondary battery including: a positive electrode; a negative electrode facing the positive electrode; and a separator between the positive electrode and the negative electrode, the separator being impregnated with an electrolyte including the additive, is also disclosed.

主权项

1. An additive, the additive being for an electrolyte for a lithium secondary battery and represented by Chemical Formula 1: R1 to R4 each independently being hydrogen or a non-polar hydrocarbon group selected from the group consisting of an ethyl group, a propyl group, a butyl group, an isopropyl group, an isobutyl group, a C3 to C12 cycloalkyl group, a C6 to C20 aryl group, or a combination thereof.