Nonaqueous electrolyte secondary battery

A nonaqueous electrolyte secondary battery comprising:

• a positive electrode plate including a positive electrode active material capable of absorbing and desorbing a lithium ion;
• a negative electrode plate including a negative electrode active material capable of absorbing and desorbing a lithium ion;
• and
• a nonaqueous electrolyte including a nonaqueous solvent and a solute,
• the positive electrode active material containing
• lithium nickel-cobalt-manganese oxide represented by Lia(NibCocMnd)(1−x−y)WxZryO2 (where 0.9≦a≦1.2, 0.3≦b≦0.6, 0.1≦c≦0.7, 0≦d≦0.4, b+c+d=1, 0.001≦x≦0.05, and 0.001≦y≦0.05) and
• spinel lithium manganese oxide represented by LieMn2−fM1fO4 (where M1 is at least one element selected from B, Mg, Ca, Sr, Ba, Ti, Ni, Al, Nb, Mo, W, Y, and Rh, 0.9≦e≦1.2, and 0≦f≦0.1)
• in a proportion of 60:40 to 90:10 (mass ratio),
• the nonaqueous electrolyte including cyclic carbonate and chain carbonate as the nonaqueous solvent,
• a content proportion of the cyclic carbonate being 10% by mass or greater and 40% by mass or less of the nonaqueous electrolyte, and
• a content proportion of dimethyl carbonate included in the chain carbonate being 25% by mass or greater.