Piezoelectric element

Abstract

A piezoelectric element includes: a laminate body; an electrical conductor layer; an electrode plate; and a coating layer. The laminate body includes a plurality of piezoelectric bodies and a plurality of internal electrodes laminated. The electrical conductor layer is connected to the internal electrodes and is positioned along the laminate direction of the laminate body. The electrode plate is bonded to the electrical conductor layer via a bonding material having electrical conductivity and is positioned along the laminate direction of the laminate body. The coating layer covers the electrical conductor layer and the electrode plate. The electrode plate includes a plurality of slits extending in a direction intersecting the laminate direction. The piezoelectric element includes a first gap between the electrode plate, the electrical conductor layer, and the bonding material.

Dependencies are inferred from the claim text.