To provide an applied structure of an energy storage device capable of being applied for energy storage elements of micro volumes such as a super capacitor and a magnetic capacitor.

The applied structure 100 of the energy storage device is provided with a plurality of pieces of energy storage elements 150, and at least a pair of positive and negative pole structure. An alignment structure of the plurality of pieces of energy storage elements 150 is to facilitate connection of energy storage elements 150 with those of the different number in series or in parallel, for which purpose, each energy storage element 150 is to be provided with a flat positive-pole terminal 153 and a flat negative-pole terminal 156, the former 153 and the latter 156 positioned at the same side, or each at an opposite side to the other. At least one pair of the positive and negative pole structures are connected with the outside.