LITHIUM SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a lithium secondary battery that is excellent in output characteristics and high rate discharge characteristics. SOLUTION: This lithium secondary battery comprises a positive plate which is made by applying a positive electrode material containing lithium manganate on a current collector, a negative plate which is made by applying a negative electrode material capable of storing and releasing lithium on the current collector, and a separator which is located between the positive plate and the negative plate and retains an electrolyte. Application weight of the positive material on the one-side face of the current collector is 0.6 g/100 cm2 or more and 1.4 g/100 cm2 or less, and air permeability (at 25 deg.C) of the separator is 200 s/100 cc or less.