Lithium-Sekundärbatterie

摘要

Provided is a novel lithium secondary battery comprising a positive electrode (1) comprising a compound capable of occluding and discharging lithium, a negative electrode (2) principally comprising a carbon material which comprises a graphite as an only or principal component, a separator (3) placed between said positive electrode (1) and said negative electrode (2); and an electrolyte solution of an electrolyte solute dissolved in a solvent comprising at least one specific cyclic compound. The lithium secondary battery has a large capacity, small self-discharge rate and excellent cycle characteristics and high charge-discharge efficiency.