NON-AQUEOUS LITHIUM SECONDARY BATTERY

摘要

The present invention relates to a lithium secondary battery using a manganese-based compound as a positive electrode active material, in which the side reaction of an electrolyte solution is inhibited and deterioration by manganese elution is inhibited. Side reaction with the electrolyte solution is inhibited by forming a stable LiF film on the surface of the active material. Manganese elution is minimized by minimizing the generation of HF. The lithium secondary battery has optimized ion conductivity and cost-reducing effects.