Piezoelectric Energy Harvesting Systems—Essentials to Successful Developments

Research output: Contribution to journalReview article

10 Citations (Scopus)

Abstract

In recent years, industrial and academic research units have focused on harvesting energy from mechanical vibrations using piezoelectric transducers. These efforts have provided research guidelines and have brought to light the problems and limitations of piezoelectric systems. There are three major phases associated with piezoelectric energy harvesting: (i) mechanical–mechanical energy transfer, including mechanical stability of the piezoelectric transducer under large stresses, and mechanical impedance matching, (ii) mechanical–electrical energy transduction, relating to the electromechanical coupling factor in the composite transducer structure, and (iii) electrical–electrical energy transfer, including electrical impedance matching, such as a direct current (DC/DC) conversion to transfer the energy to a rechargeable battery. This Review starts from the historical background of piezoelectric energy harvesting, followed by several misconceptions by current researchers. The main part deals with step-by-step detailed energy flow analysis energy harvesting systems with lead zirconate titanate (PZT)-based devices to provide comprehensive strategies on how to improve the efficiency of the harvesting system.

Original languageEnglish (US)
Pages (from-to)829-848
Number of pages20
JournalEnergy Technology
Volume6
Issue number5
DOIs
StatePublished - May 2018

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Energy harvesting
Piezoelectric transducers
Energy transfer
Electromechanical coupling
Acoustic impedance
Secondary batteries
Mechanical stability
Vibrations (mechanical)
Transducers
Composite materials

All Science Journal Classification (ASJC) codes

  • Energy(all)

Cite this

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abstract = "In recent years, industrial and academic research units have focused on harvesting energy from mechanical vibrations using piezoelectric transducers. These efforts have provided research guidelines and have brought to light the problems and limitations of piezoelectric systems. There are three major phases associated with piezoelectric energy harvesting: (i) mechanical–mechanical energy transfer, including mechanical stability of the piezoelectric transducer under large stresses, and mechanical impedance matching, (ii) mechanical–electrical energy transduction, relating to the electromechanical coupling factor in the composite transducer structure, and (iii) electrical–electrical energy transfer, including electrical impedance matching, such as a direct current (DC/DC) conversion to transfer the energy to a rechargeable battery. This Review starts from the historical background of piezoelectric energy harvesting, followed by several misconceptions by current researchers. The main part deals with step-by-step detailed energy flow analysis energy harvesting systems with lead zirconate titanate (PZT)-based devices to provide comprehensive strategies on how to improve the efficiency of the harvesting system.",
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Piezoelectric Energy Harvesting Systems—Essentials to Successful Developments. / Uchino, Kenji.

In: Energy Technology, Vol. 6, No. 5, 05.2018, p. 829-848.

Research output: Contribution to journalReview article

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