ELECTROLYTE SOLUTION AND LITHIUM ION BATTERIES USING THE SAME

摘要

Disclosed in this application is an electrolyte solution, comprising a non-aqueous organic solvent, a lithium salt, and additives, characterized in that the additives comprise a cyclic sulfate ester compound and a naphthalene compound with amino group. When the electrolyte solution is used in lithium ion secondary batteries, the batteries are ensured to have good cycling and storage performances at high temperature, and have the advantages of low swelling during use at high temperature, low internal resistance and good charge and discharge performances at low temperature.

主权项

1. An electrolyte solution, comprising a non-aqueous organic solvent, a lithium salt, and additives, wherein the additives comprise:
a cyclic sulfate ester compound; and a naphthalene compound with amino group.