METHOD FOR MANUFACTURING POWER STORAGE DEVICE
PROBLEM TO BE SOLVED: To provide a method for manufacturing a power storage device, which can shorten a manufacturing time.SOLUTION: A method for manufacturing a power storage device 1 comprises a freezing step S3 of freezing water impregnated into positive electrodes 12, negative electrodes 13 and...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a method for manufacturing a power storage device, which can shorten a manufacturing time.SOLUTION: A method for manufacturing a power storage device 1 comprises a freezing step S3 of freezing water impregnated into positive electrodes 12, negative electrodes 13 and separators 6. The method further comprises a laminate formation step S4 of laminating bipolar electrodes 3 and the separators 6 in a state in which the water impregnated into the positive electrodes 12, the negative electrodes 13 and the separators 6 is frozen in this way to form a seal part 4, whereby ice IC is disposed in a laminate 2. Therefore, when the ice IC melts, the water is sealed in the laminate 2. At this time, powder 51 that becomes a solute of an electrolyte solution EW is disposed between the bipolar electrodes 3 and the separators 6, the solute dissolves in the water as the ice IC melts in the laminate formation step S4. Thus, the electrolyte solution EW is produced and sealed in the laminate 2. In this way, the electrolyte solution can be sealed in the laminate without performing a time-consuming liquid-injecting operation.SELECTED DRAWING: Figure 2
【課題】製造時間を短縮することができる蓄電装置の製造方法を提供する。【解決手段】蓄電装置1の製造方法は、正極12と負極13とセパレータ6とに含浸させた水を凍結させる凍結工程S3を備えている。このように、正極12と負極13とセパレータ6とに含浸させた水が凍結した状態のバイポーラ電極3及びセパレータ6を積層させてシール部4を形成することで、積層体2内に氷ICが配置される。従って、氷ICが融解することによって積層体2内に水が封入される。このとき、積層体形成工程S4では、電解液EWの溶質となる粉末51がバイポーラ電極3の間に配置されているため、氷ICが融解するのに伴って水の中に溶質が溶け出す。従って、積層体2内で電解液EWが封入生成される。このように、時間のかかる注液作業を行わなくとも、積層体内に電解液を封入することができる。【選択図】図2 |
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