| 主权项 |
1. A method of manufacturing a sealed battery including a battery case having an opening which connects the inside and the outside of the battery case, and a power-generating element stored in the battery case, the method comprising:
a step of storing an electrode body in the battery case, the electrode body having a positive electrode, a negative electrode and a separator; a step of pouring an electrolyte solution into the battery case through the opening to turn the electrode body into the power-generating element; a step of temporarily sealing the opening, with a temporary sealing member, of the battery case into which the electrolyte solution is poured; a step of performing an initial charge of the power-generating element inside the battery case in which the opening is temporarily sealed; a step of introducing a detection gas into the battery case through the opening while opening the opening temporarily sealed with the temporary sealing member; and a step of finally sealing the opening, with a final sealing member, of the battery case into which the detection gas is introduced. |
