| abstract |
The present invention relates to a non-aqueous electrolyte for lithium batteries, and more particularly, to 100 parts by weight of a mixed organic solvent of a cyclic carbonate organic solvent and a linear carbonate organic solvent in which lithium salt is dissolved at 0.8 to 2.0 M. The present invention relates to a nonaqueous electrolyte for lithium batteries prepared by adding 0.1 to 10.0 parts by weight of the sulfoxide compound, and the use of the nonaqueous electrolyte for lithium batteries of the present invention prevents swelling of the battery. Can be improved.n n n n n n n n n n In the above, R is a perfluoroalkyl group having 1 to 10 carbon atoms, and R 'is a fluoroalkyl group or fluoro group having 1 to 10 carbon atoms. |