| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealed battery positively allowing leakage inspection. SOLUTION: In this sealed battery containing helium, after evacuating the interior of a battery can sealed expect for an electrolyte pouring hole, an electrolyte is poured in from the electrolyte pouring hole by pressurizing it with helium containing gas of a pressure equal to or more than the atmospheric pressure, and after pouring the electrolyte and injecting the helium containing gas, the electrolyte pouring hole is sealed. |
