| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for removing an organic solvent from a lithium ion secondary battery, which is capable of easily and safely removing an organic solvent in an electrolyte from a lithium ion secondary battery. <P>SOLUTION: The method for removing an organic solvent from a lithium ion secondary battery includes a heating step of heating an unopened lithium ion secondary battery at a temperature of 100°C or higher under a pressure of 25-65 kPa. It is preferable that a safety valve is opened in the heating step, the pressure is 35-65 kPa, and the heating temperature is 100-160°C. <P>COPYRIGHT: (C)2013,JPO&INPIT |
