| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress a reaction between an electrode and a nonaqueous electrolyte during charging and discharging so as to improve a cycle characteristic under a high-temperature environment and suppress generation of gas during continuous charging. <P>SOLUTION: A nonaqueous electrolyte contains a solvent, an electrolyte salt, at least one of a chain imide salt and an annular imide salt, and a heteropoly acid or a heteropoly acid compound. The heteropoly acid and the heteropoly acid compound have, for instance, Anderson structure, Keggin structure, Dawson structure, or Preyssler structure. <P>COPYRIGHT: (C)2012,JPO&INPIT |
