| 摘要 |
PROBLEM TO BE SOLVED: To remove reliably all liquid components including electrolyte adhered to a peripheral part of a battery can without accelerating reaction of electrolyte filled in a cylindrical battery. SOLUTION: After removing electrolyte with low temperature pure water in a cleaning device 30, and then after removing the cleaning water mentioned above by blowing a high pressure air with a specific pressure and a low temperature in a dewatering device 32, a cylindrical battery is dried in atmosphere with a low temperature, in a drier 34. Thereby, heat generation arising from reaction of the electrolyte is suppressed, moisture including electrolyte is completely removed and corrosion of the cylindrical battery can be prevented. |
