ORGANIC ELECTROLYTIC SOLUTION AND LITHIUM BATTERY INCLUDING THE SAME

摘要

An organic electrolytic solution includes: a lithium salt; an organic solvent; a disultone-based compound represented by Formula 1; and a silicon-based compound represented by Formula 2:;wherein in Formulae 1 and 2,A1, A2, A3, and A4 are each independently selected from a substituted or unsubstituted C1 to C5 alkyl group; a carbonyl group; or a sulfinyl group,n1 to n4 each are independently an integer from 1 to 3,when each of n1 to n4 is 2 or more, a plurality of A1, A2, A3, or A4 are identical or different,X is N or O, and n is 0 or 1, when X is O, n is 0,Y is a covalent bond, a carbonyl group, or —N═C(Rf)—, andRa, Rb, Rc, Rd, and Re are the same as described in the detailed description.

主权项

1. An organic electrolytic solution comprising:
a lithium salt; an organic solvent; a disultone-based compound represented by Formula 1; and a silicon-based compound represented by Formula 2: wherein in Formulae 1 and 2, A1, A2, A3, and A4 each are independently selected from a substituted or unsubstituted C1 to C5 alkyl group; a carbonyl group; or a sulfinyl group, n1 to n4 are each independently an integer from 1 to 3, when each of n1 to n4 is 2 or more, a plurality of A1, A2, A3, or A4 are identical or different, X is N or O, and n is 0 or 1, when X is O, n is 0, Y is a covalent bond, a carbonyl group, or —N═C(Rf)—, Ra and Rb are each independently selected from a hydrogen; a halogen-substituted or unsubstituted C1 to C5 alkyl group; a halogen-substituted or unsubstituted C4 to C10 cycloalkyl group; a halogen-substituted or unsubstituted C5 to C10 aryl group; a halogen-substituted or unsubstituted C2 to C10 heteroaryl group; a halogen-substituted or unsubstituted C2 to C5 alkenyl group; a halogen-substituted or unsubstituted C2 to C5 alkynyl group; a halogen-substituted or unsubstituted C1 to C5 alkoxy group; a halogen-substituted or unsubstituted C1 to C5 alkylamine group; or —Si(Rg)(Rh)(Ri), wherein Rg, Rh, and Ri each are independently a halogen-substituted or unsubstituted C1 to C5 alkyl group, Rc, Rd, Re, and Rf are each independently selected from a hydrogen; a halogen-substituted or unsubstituted C1 to C5 alkyl group; a halogen-substituted or unsubstituted C4 to C10 cycloalkyl group; a halogen-substituted or unsubstituted C5 to C10 aryl group; a halogen-substituted or unsubstituted C2 to C10 heteroaryl group; a halogen-substituted or unsubstituted C2 to C5 alkenyl group; or a halogen-substituted or unsubstituted C2 to C5 alkynyl group, and Ra and Rb link to each other to form a ring.