| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a power storage element capable of manufacturing a highly durable power storage element.SOLUTION: A method of manufacturing a power storage element including a seal bag, a battery section housed in the seal bag and including at least one battery unit having a pair of electrodes, and an electrolyte housed in the seal bag, includes a non-sealed structure preparation step for preparing a non-sealed structure where the battery section and electrolyte are housed in a non-seal bag having an unsealed part, a deaeration step for deairing the electrolyte, and a sealing step for manufacturing a power storage element by sealing the unsealed part of the non-seal bag while reducing the pressure. The deaeration step includes a first freezing step for freezing the electrolyte, and a dissolution step for dissolving and deairing the electrolyte, frozen in the freezing step, while reducing the pressure.SELECTED DRAWING: Figure 5 |
