Shear-Mode-Based Cantilever Driving Low-Frequency Piezoelectric Energy Harvester Using 0.67Pb(Mg1/3Nb2/3)O3-0.33PbTiO3

Energy harvesting from external mechanical excitation has become a hot interest area, and relaxor piezoelectric single crystal (1 - x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-xPT or PMN-PT) has attracted continuous attention due to the well-known ultrahigh shear-mode electromechanical response. To exploit the low-frequency application of excellent shearmode performance of the PMN-PT single crystal, we proposed a Shear-mode-based CANtilever Driving Low-frequency Energy harvester. The device is composed of two symmetrically assembled sandwich structures and a cantilever, in which sandwich structures can be driven by the cantilever. An analytical method was used to illustrate the high output mechanism, and a finiteelement method model of the device was also established to optimize the generated electric energy in this device. The electrical properties of the device under different excitation frequencies and load resistances were studied systematically. The maximum voltage and power density at resonance frequency (43.8 Hz) were measured to be 60.8 V and 10.8 mW/cm3 under a proof mass of 13.5 g, respectively. Both theoretical and experimental results demonstrate the considerable potential of the resonance-excited shear-mode energy harvester applied to wireless sensors and low-power portable electronics.

[1]  Siu Wing Or,et al.  Piezoelectric energy harvesting based on shear mode 0.71Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 single crystals , 2010, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[2]  Henry A. Sodano,et al.  A review of power harvesting using piezoelectric materials (2003–2006) , 2007 .

[3]  Paul M. Weaver,et al.  Charge redistribution in piezoelectric energy harvesters , 2012 .

[4]  Yong Xu,et al.  Asymmetric air-spaced cantilevers for vibration energy harvesting , 2008 .

[5]  Jaehwan Kim,et al.  A review of piezoelectric energy harvesting based on vibration , 2011 .

[6]  Di Lin,et al.  Shear-mode piezoelectric properties of 0.69Pb(Mg 1/3 Nb 2/3 )O 3 -0.31PbTiO 3 single crystals , 2004 .

[7]  Zhong Lin Wang,et al.  Microfibre–nanowire hybrid structure for energy scavenging , 2009, Nature.

[8]  Chang Kyu Jeong,et al.  Self‐Powered Cardiac Pacemaker Enabled by Flexible Single Crystalline PMN‐PT Piezoelectric Energy Harvester , 2014, Advanced materials.

[9]  Wenning Di,et al.  Cantilever driving low frequency piezoelectric energy harvester using single crystal material 0.71Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 , 2012 .

[10]  Zhu Liang,et al.  Nonlinear output properties of cantilever driving low frequency piezoelectric energy harvester , 2012 .

[11]  Haosu Luo,et al.  Growth and characterization of relaxor ferroelectric PMNT single crystals , 1999 .

[12]  D. Inman,et al.  Power generation and shunt damping performance of a single crystal lead magnesium niobate-lead zirconate titanate unimorph: Analysis and experiment , 2008 .

[13]  Di Lin,et al.  Orientation dependence of transverse piezoelectric properties of 0.70Pb(Mg1∕3Nb2∕3)O3-0.30PbTiO3 single crystals , 2004 .

[14]  Jiamei Jin,et al.  Rotational piezoelectric wind energy harvesting using impact-induced resonance , 2014 .

[15]  Di Lin,et al.  Excellent performances of energy harvester using cantilever driving double-clamped 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 plates and symmetric middle-stops , 2015 .

[16]  Siu Wing Or,et al.  Energy harvesting using multilayer structure based on 0.71Pb(Mg1/3Nb2/3)O3–0.29PbTiO3 single crystal , 2010 .

[17]  Daniel J. Inman,et al.  Mechanical Considerations for Modeling of Vibration-Based Energy Harvesters , 2007 .