| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery capable of restraining an battery expansion at the time of storage at high temperature in spite of the battery at a high discharging state of ≥4.30 volts. <P>SOLUTION: An electrolyte is impregnated into a separator 15. The electrolyte includes, for example, a solvent and electrolyte salt dissolved in the solvent. The solvent formed by a nonaqueous solvent contains cyclic pyrrolidone derivative such as 1-methyl-2-pyrrolidone. <P>COPYRIGHT: (C)2010,JPO&INPIT |
