POWER STORAGE DEVICE AND ELECTRONIC APPARATUS

摘要

Provided are: a power storage device having a large capacity; a power storage device having a high energy density; a power storage device having high reliability; and a power storage device having a long service life. A power storage device according to the present invention is characterized by comprising a separator, a first electrode, a second electrode, and an electrolyte, wherein: the separator is disposed between the first electrode and the second electrode; the first electrode comprises an active material layer, a current collector, and a pair of films sandwiching the current collector; the active material layer comprises a region in contact with the current collector, and a region in contact with at least one of the films; and the electrolyte comprises an alkali metal salt and an ionic liquid.