| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery having a high charge discharge capacity and high safety. <P>SOLUTION: The nonaqueous electrolyte secondary battery has a nonaqueous electrolyte prepared by dissolving supporting salt in a solvent comprising only a phosphate ester derivative, a positive electrode, and a negative electrode. As the negative electrode, lithium metal or a lithium alloy is preferable, and as the lithium alloy, an alloy of lithium with metal selected from the group comprising Al, In, Si, Sn, and Zn is preferable. As the phosphate ester derivative, a phosphonate and a phosphinate are preferable. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
