A battery, which has excellent safety in an overcharged state and is excellent in low-temperature characteristics and cycle characteristics, is provided.The electrolytic solution of the secondary battery contains a compound which has a diazine N,N'-dioxide structure represented by general formula (1). ##STR00001## in which, n, m, n', and m' each independently are an integer 0 or larger; the diazine rings and the benzene rings may be condensed alternately or randomly; and substituents R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sup.a, R.sup.b, R.sup.c, and R.sup.d each independently represent hydrogen atom, halogen atom, or specific group. However, when n is 2 or larger, then R.sup.a and R.sup.b may be the same or different, and when n' is 2 or larger, then R.sup.c and R.sup.d may be the same or different. In addition, these substituents, in cooperation with each other, may form a ring structure.