| 摘要 |
An electric storage apparatus has an electric-generating element performing charge and discharge and a case accommodating the electric-generating element and an electrolytic solution. The case has an injection portion, a cap, a worked portion, and a valve. The injection portion is used for injecting the electrolytic solution into the case. The cap closes the injection portion. The worked portion is formed along the outer shapes of the injection portion and the cap by working the wall face of the case. The valve is used for discharging gas produced within the case to the outside of the case and is provided between the injection portion and the worked portion.
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