NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要: PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery that exhibits excellent charge/discharge efficiency and storage characteristic even at high temperatures. SOLUTION: The has least negative electrode including different element materials capable of storing releasing lithium, positive metal oxide material an in which lithium salt is dissolved nonaqeuous solvent, wherein the solvent contains, electrolyte, 0.01 to 10 wt.% compound general formula (1) as shown below. (In formula, n integer equal or more than three; R 1 2 are each alkyl part all hydrogen atoms thereof substituted by fluorine atoms; 3 independently atom, group, ether carboxylic acid ester carbonic group halogen atom). COPYRIGHT: (C)2004,JPO