NEW COMPOUNDS AND NON-AQUEOUS SOLUTION ELECTROLYTE AGENT COMPRISING THEREOF AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

摘要

The present invention relates to a lithium salt, a non-aqueous electrolyte comprising an electrolyte additive and a lithium secondary battery comprising the same. A non-aqueous electrolyte according to the same can form a stable film onto a positive electrode when charging and discharging a lithium secondary battery. Therefore, the lithium secondary battery produced by using the non-aqueous electrolyte can improve lifespan properties, improve cycle stability in a high-voltage battery and effectively prevent capacity reduction when storing the lithium secondary battery at a high temperature.