| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithium secondary battery in which increase in the internal resistance of a battery after reflow is suppressed by reducing reactivity between a negative electrode active material and an electrolytic solution. <P>SOLUTION: The lithium secondary battery comprising a positive electrode composed of olivine type phosphate containing lithium expressed by a general formula Li<SB>x</SB>MPO<SB>4</SB>(in the formula, M is at least one or more kinds of elements selected from Co, Ni, Mn, and Fe, and satisfies a condition of 0<x<1.3), a negative electrode composed of a lithium-aluminum-manganese alloy, and the electrolytic solution composed of a solute and a solvent, lithium salt having lithium perfluoroalkyl sulfonylimide and oxalate complex as anion is used as the solute. <P>COPYRIGHT: (C)2008,JPO&INPIT |
