NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

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An aspect of the invention resides in a nonaqueous electrolyte secondary battery (10) including a positive electrode (11), a negative electrode (12) and a nonaqueous electrolytic solution, the positive electrode including a positive electrode active material containing a lithium transition metal oxide having a rare earth compound attached on the surface, the nonaqueous electrolytic solution including an aromatic compound having an oxidative decomposition potential in the range of 4.2 to 5.0 V vs. Li/Li+. The rare earth compound is preferably a rare earth hydroxide, a rare earth oxyhydroxide or a rare earth oxide.