| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric storage device capable of suppressing increase in internal resistance and breakage of a lead part even when vibration occurs.SOLUTION: An electric storage device includes: an electrode unit in which positive electrode sheets and negative electrode sheets, each composed of an electrode layer formed on a collector, are laminated via a separator; an outer container accommodating the electrode unit; a positive and a negative electrode terminals provided in such a manner as to protrude from the inside of the outer container to the outside thereof; lead parts that electrically connect inner ends of respective positive electrode terminal and negative electrode terminal with the collectors of respective positive electrode sheet and negative electrode sheet; and an electrolyte filled in the outer container. On the surface of the lead parts, a protection film is formed. |
