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1. (WO2018061496) PIEZOELECTRIC POWER GENERATION DEVICE

Pub. No.:    WO/2018/061496    International Application No.:    PCT/JP2017/029141
Publication Date: Fri Apr 06 01:59:59 CEST 2018 International Filing Date: Fri Aug 11 01:59:59 CEST 2017
IPC: H01L 41/047
H01L 41/083
H01L 41/113
H02N 2/18
Applicants: MURATA MANUFACTURING CO., LTD.
株式会社村田製作所
Inventors: TAKAHASHI, Kohei
高橋 講平
Title: PIEZOELECTRIC POWER GENERATION DEVICE
Abstract:
Provided is a piezoelectric power generation device in which peeling and breakage of a piezoelectric element when driven does not readily occur. A piezoelectric power generation device 1 is provided with a support 2 and a piezoelectric element 4 pasted to the support 2, the piezoelectric element 4 comprising: a piezoelectric body 5 comprising first and second main surfaces 5a, 5b and first and second side surfaces 5c, 5d; a first inner layer electrode 10 drawn out to the first side surface 5c, provided within the piezoelectric body 5; a first dummy electrode 11 drawn out to the second side surface 5d and facing the outer peripheral edge of the first inner layer electrode 10, provided within the piezoelectric body 5 at a position having the same height as the first inner layer electrode 10; a first outer layer electrode 6 provided on the first main surface 5a of the piezoelectric body 5 and a second outer layer electrode 7 provided on the second main surface 5b of the piezoelectric body 5.