ENERGY STORAGE DEVICE

Provide is a technique to enhance a current collecting efficiency of a first electrode of an energy storage device. The herein disclosed energy storage device includes a first electrode including a first current collector and a first active material layer provided on the first current collector, includes a second electrode, includes a separator, and includes an electrically conductive layer. The electrically conductive layer is provided between the first active material layer and the separator so as to be arranged over a portion from a surface of the first active material layer to the first current collector.