Piezoelectric element formed from elastomer and method for producing piezoelectric element formed from elastomer

A method for producing an elastomer piezoelectric element, comprising:

• a unit layer forming step of forming a unit layer that includes
• a dielectric elastomer sheet-shaped dielectric portion,
• two conductive elastomer common electrodes extending from one main surface to another main surface of the dielectric portion, and
• an opposite electrode disposed on one of the main surfaces of the dielectric portion and connected to one of the two common electrodes;
• and
• a stacking step of stacking and joining a plurality of the unit layers together,
• wherein, in the stacking step, a portion in which the common electrode and the opposite electrode are joined together and a portion in which the common electrodes are joined to each other are formed, so that specific ones of the opposite electrodes are connected to each other.

A method for producing an elastomer piezoelectric element, comprising:

• stacking dielectric elastomer sheet-shaped dielectric portions and opposite electrodes alternately by repeatedly performing
• a dielectric portion forming step of forming the dielectric portion, and
• an electrode forming step of forming two conductive elastomer common electrodes extending from one main surface to another main surface of the dielectric portion, and forming, on one of the main surfaces of the dielectric portion, an opposite electrode connected to one of the two common electrodes;
• and
• connecting specific ones of the opposite electrodes to each other by, when newly forming two of the common electrodes in the electrode forming step, forming a portion in which the new common electrode and the opposite electrode located at an underlying layer are joined together and a portion in which the new common electrode and the common electrode located at an underlying layer are joined together.