A study of the effects of vibration on the electric power generation properties of lead zirconate titanate piezoelectric ceramic

2012 ◽  
Vol 38 (6) ◽  
pp. 4445-4451 ◽  
Author(s):  
Mitsuhiro Okayasu ◽  
Daisuke Sato ◽  
Yuki Sato ◽  
Masashi Konno ◽  
Tetsuro Shiraishi
Keyword(s):  
Power Generation ◽  
Electric Power ◽  
Lead Zirconate Titanate ◽  
Piezoelectric Ceramic ◽  
Lead Zirconate ◽  
Electric Power Generation ◽  
Zirconate Titanate

scholarly journals Effects of loading contact on electric-power generation of lead zirconate titanate piezoelectric ceramic plate

2019 ◽  
Vol 8 (4) ◽  
pp. 509-518 ◽  
Author(s):  
Mitsuhiro Okayasu ◽  
Tsukasa Ogawa
Keyword(s):  
Power Generation ◽  
Electric Power ◽  
Lead Zirconate Titanate ◽  
Contact Area ◽  
High Efficiency ◽  
Lead Zirconate ◽  
Ceramic Plate ◽  
Electric Power Generation ◽  
Electric Voltage ◽  
Pzt Ceramic

AbstractTo better understand the generation of electric power for piezoelectric PbZrTiO3 (PZT) ceramic plate (ϕ25 mm), an attempt was made to investigate experimentally and numerically electric- power generation characteristics during cyclic bending under various loading fixtures (ϕ0–ϕ20 mm), i.e., different contact areas. Increasing the load-contact area on the PZT ceramic leads to a nonlinear decrease in the generated voltage. Decreasing contact area basically enhances the generated voltage, although the voltage saturates during loading when the contact area is less than ϕ5 mm. A similar voltage is generated for ϕ0 and ϕ5 mm, which is attributed to strain status (ratio of compressive and tensile strain) and material failure due to different stress distribution in the PZT ceramic. On the basis of the obtained electric generation voltage, suitable loading conditions are clarified by loading with the ϕ5 mm fixture, which generates a higher voltage and a longer lifetime of the PZT ceramic. From this approach, it is appeared that the area contact with the area ratio of 0.04 (ϕ5 mm/ϕ20 mm) is suitable to obtain the high efficiency of the electric voltage.

scholarly journals Power-Generation Optimization Based on Piezoelectric Ceramic Deformation for Energy Harvesting Application with Renewable Energy

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2171
Author(s):  
Hyeonsu Han ◽  
Junghyuk Ko
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Energy Harvesting ◽  
Piezoelectric Material ◽  
Lead Zirconate Titanate ◽  
Piezoelectric Ceramic ◽  
Piezoelectric Element ◽  
Piezoelectric Ceramics ◽  
Lead Zirconate ◽  
Piezoelectric Energy

Along with the increase in renewable energy, research on energy harvesting combined with piezoelectric energy is being conducted. However, it is difficult to predict the power generation of combined harvesting because there is no data on the power generation by a single piezoelectric material. Before predicting the corresponding power generation and efficiency, it is necessary to quantify the power generation by a single piezoelectric material alone. In this study, the generated power is measured based on three parameters (size of the piezoelectric ceramic, depth of compression, and speed of compression) that contribute to the deformation of a single PZT (Lead zirconate titanate)-based piezoelectric element. The generated power was analyzed by comparing with the corresponding parameters. The analysis results are as follows: (i) considering the difference between the size of the piezoelectric ceramic and the generated power, 20 mm was the most efficient piezoelectric ceramic size, (ii) considering the case of piezoelectric ceramics sized 14 mm, the generated power continued to increase with the increase in the compression depth of the piezoelectric ceramic, and (iii) For piezoelectric ceramics of all diameters, the longer the depth of deformation, the shorter the frequency, and depending on the depth of deformation, there is a specific frequency at which the charging power is maximum. Based on the findings of this study, PZT-based elements can be applied to cases that receive indirect force, including vibration energy and wave energy. In addition, the power generation of a PZT-based element can be predicted, and efficient conditions can be set for maximum power generation.

Degradation of Lead Zirconate Titanate Piezoelectric Ceramics Induced by Water and AC Voltages

2007 ◽  
Vol 336-338 ◽  
pp. 367-370 ◽  
Author(s):  
Wang Xiang ◽  
Wan Ping Chen ◽  
Wen Chao You ◽  
Helen Lai Wah Chan ◽  
Long Tu Li
Keyword(s):  
Lead Zirconate Titanate ◽  
Atomic Hydrogen ◽  
Piezoelectric Ceramic ◽  
Counter Electrode ◽  
Piezoelectric Properties ◽  
Piezoelectric Ceramics ◽  
Lead Zirconate ◽  
Zirconate Titanate ◽  
Comparison Experiment ◽  
Naoh Solution

A comparison experiment was conducted in which some lead zirconate titanate (PZT) piezoelectric ceramic rings were simply immersed in a 0.01 M NaOH solution while other PZT rings were immersed in the solution with a 50 Hz AC voltage applied between the electrodes of the rings and a counter electrode in the solution. Though the simple immersion showed no noticeable influence on the PZT rings, those PZT rings treated with the application of the AC voltage were obviously degraded in their piezoelectric properties. It was proposed that the degradation resulted from the collaborated reactions of atomic hydrogen and oxygen generated in the AC voltage-induced electrolysis of water. Water may be an important origin for degradation of piezoelectric ceramic devices operating under AC voltages.

Effect of Material Constants and Mechanical Damping on Piezoelectric Power Generation

2009 ◽  
Author(s):  
Alper Erturk ◽  
Steven R. Anton ◽  
Onur Bilgen ◽  
Daniel J. Inman
Keyword(s):  
Power Generation ◽  
Lead Zirconate Titanate ◽  
Power Output ◽  
Electrical Power ◽  
Lead Zirconate ◽  
Lead Magnesium Niobate ◽  
Magnesium Niobate ◽  
Zirconate Titanate ◽  
Lead Magnesium ◽  
Mechanical Damping

Vibration-to-electricity conversion using piezoelectric transduction has been studied by several researchers over the last decade. PZT (lead zirconate titanate) - based piezoelectric ceramics such as PZT-5A and PZT-5H have been very frequently employed in design of piezoelectric energy harvester beams. Recently, the single-crystal piezoceramics PMN-PT (lead magnesium niobate – lead titanate) and PMN-PZT (lead magnesium niobate – lead zirconate titanate) have also been investigated for electrical power generation due to their large piezoelectric constants (particularly the d31 constant for the bending mode). Piezoelectric, elastic and dielectric properties of these piezoceramics differ from each other considerably. Even though the d31 constants of two piezoceramics might differ by an order of magnitude (e.g. PZT-5A and PMN-PZT), this large difference is not necessarily the case for their power outputs. It is theoretically discussed and experimentally demonstrated in this paper that the d31 piezoelectric constant alone is an insufficient parameter for selecting the best piezoelectric material to design a power generator for vibration-based energy harvesting. Elastic compliance of a piezoceramic has a strong effect on its electrical power output. In addition, since these devices are usually designed for resonance excitation, mechanical damping constitutes another parameter that might change the entire picture regarding the power generation performance. The last one is particularly critical considering the fact that it is difficult to control mechanical damping due to clamped interfaces and adhesive layers in practice. Theoretical comparisons are given for geometrically identical bimorphs with PZT-5A, PZT-5H, PMN-PT (with 30% PT), PMN-PT (with 33% PT) and PMN-PZT layers using an experimentally validated distributed-parameter electromechanical model. Two experimental demonstrations are presented. The first case compares two geometrically identical bimorphs (using PZT-5A and PZT-5H piezoceramics) and shows that the bimorph with PZT-5A can generate larger power than the one with PZT-5H in spite of the larger d31 constant of the latter. The second experimental case compares the power generation performances of a PZT-5H unimorph and a PMN-PZT unimorph. In agreement with the theory, considerably large damping identified for the PMN-PZT unimorph results in much lower power output compared to that of the PZT-5H unimorph.

Piezoelectric Nanogenerators based on Lead Zirconate Titanate nanostructures: An insight into the effect of potential barrier and morphology on the output power generation

2021 ◽  
Author(s):  
SNEHAMOYEE HAZRA ◽  
Subhamita Sengupta ◽  
Soumyaranjan Ratha ◽  
Ankita Ghatak ◽  
Arup Kumar Raychaudhuri ◽  
...  
Keyword(s):  
Power Generation ◽  
Lead Zirconate Titanate ◽  
Electrode Materials ◽  
Mechanical Energy ◽  
Lead Zirconate ◽  
Internal Resistance ◽  
Mechanical Pressure ◽  
Device Structure ◽  
Zirconate Titanate ◽  
Piezoelectric Nanogenerators

Abstract The high internal resistance of the perovskite materials used in Nanogenerators (NGs) lowers the power generation. It severely restricts their application for mechanical energy harvesting from the ambient source. In this work, we demonstrate a flexible Piezoelectric NG (PENG) with an improved device structure. Hydrothermally grown one-dimensional Lead Zirconate Titanate (Pb(ZrTi)O3) of different morphologies are used as the generating material. The morphology of the PZT nanostructures, engineered from nanoparticles to needle-shaped nanowires to increase the surface to volume ratio, provides effective mechanical contact with the electrode. The reduction of the internal resistance of the PENG has been achieved by two ways: i) fabrication of interdigitated electrodes (IDE) to increase the interfacial polarization and ii) lowering of Schottky barrier height (SBH) at the junction of the PZT nanostructure and the metal electrode by varying the electrode materials of different work functions. We find that lowering of the SBH at the interface contributes to an increased piezo voltage generation. The flexible nano needles-based PENG can deliver output voltage 9.5 V and power density 615 μW/cm2 on application low mechanical pressure (~1 kPa) by tapping motion. The internal resistance of the device is ~0.65 MΩ. It can charge a 35 μF super-capacitor up to 5 V within 20 s. This study provides a systematic pathway to solve the bottlenecks in the piezoelectric nanogenerators due to the high internal resistance.

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