Power generating device

A power generating device comprising:

• an element having flexibility, the element being deformable when receiving a vibration and configured to generate power when undergoing deformation, the deformation including at least one of a bending deformation, a torsional deformation, and a bending-torsional complex deformation, the element including a first base and a second base facing the first base, the first base including a first electrode, the second base including a second electrode arranged to be adjacent the first electrode, the element further including an intermediate layer having flexibility, overlying the first electrode, the second electrode overlying the intermediate layer, the intermediate layer being made of silicone rubber having surface modification;
• and
• a support to support at least one portion of the element,
• wherein a distance between the first electrode and the second electrode is variable by the deformation, and an overlapping area of the first electrode and the second electrode is variable by the deformation,
• wherein the intermediate layer includes a first surface facing the first electrode and a second surface facing the second electrode, and
• wherein, when a deformation imparting force is applied to the element, the first surface and the second surface deform at different degrees of deformation.