| abstract |
The lithium secondary battery of the present invention comprises a cathode including a cathode active material, a cathode including a cathode active material, a separator disposed between the cathode and the anode, and a non-aqueous electrolyte, wherein the non- Ionic fluorophosphate compound and an alkylsilyl group-containing borate compound. When a non-aqueous electrolyte containing such an additive is applied to a lithium secondary battery, performance such as room temperature output and low temperature resistance can be improved. If a lithium titanium composite metal oxide is used as an anode material, a lithium secondary battery Can be provided. |