LIQUID ELECTROLYTE FOR LITHIUM BATTERIES, METHOD FOR PRODUCING THE SAME, AND LITHIUM BATTERY COMPRISING THE LIQUID ELECTROLYTE FOR LITHIUM BATTERIES

摘要

The present invention is to provide: a liquid electrolyte for batteries, which has excellent stability to lithium metals; a method for producing the liquid electrolyte; and a lithium battery comprising the liquid electrolyte. Presented is a liquid electrolyte for lithium batteries, wherein the liquid electrolyte comprises a mesoionic compound represented by the following general formula (1):;;wherein R1 is an aliphatic hydrocarbon group having 1 to 3 carbon atoms, and R2 is a group represented by any one of the following general formulae (2), (3) and (4): General Formula (2): —C1H21—(OCH2)m—CnH2n+1; General Formula (3): —CxH2x—(CH2OCH2)y—CzH2z+1; and General Formula (4): —CpH2p—(C2H4OCH2)q—CrH2r+1.

主权项

1. A liquid electrolyte for lithium batteries, wherein the liquid electrolyte comprises a mesoionic compound represented by the following general formula (1): wherein R1 is an aliphatic hydrocarbon group having 1 to 3 carbon atoms, and R2 is a group represented by any one of the following general formulae (2), (3) and (4):
—C1H21—(OCH2)m—Cn—H2n+1   General Formula (2) wherein 1 and n are each a real number of 0 or more; m is a real number of 1 or more; and the sum of 1, m and n is 8 or less;
—CxH2x—(CH2OCH2)y—CzH2z+1   General Formula (3) wherein x and z are each a real number of 0 or more; y is a real number of 1 or more; and the sum of x, 2y and z is 8 or less; and
—CpH2p—(C2H4OCH2)q—CrH2r+1   General Formula (4) wherein p and r are each a real number of 0 or more; q is a real number of 1 or more, and the sum of p, 3q and r is 8 or less.