| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electrolyte for a lithium ion secondary battery, and also to provide a lithium ion secondary battery containing it. <P>SOLUTION: This electrolyte contains a nonaqueous organic solvent, a lithium salt and a triphenylphosphate additive. This lithium ion secondary battery containing the electrolyte is improved in overcharge safety, and has excellent electrochemical characteristics such as a swelling characteristic, high-temperature storage safety, and a cycle life characteristic. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
