An electrochemical device includes a power generating element including a main portion and a terminal portion, the main portion including an electrode prepared by forming an active material layer on a metal foil surface, the terminal portion being provided on a side of the main portion, the terminal portion including layers of metal foils, an outer package including a container and a lid, the container including a side wall and a bottom wall and housing the power generating element, the lid being formed with a terminal, a current collector including a leg portion to which the layers of metal foils are attached, and a movement restricting member being arranged between the terminal portion of the power generating element and an inner surface of the side wall opposite the terminal portion. The movement restricting member includes a holding portion.