Native Cellulose Microfiber-Based Hybrid Piezoelectric Generator for Mechanical Energy Harvesting Utility

A piezoelectric generator converts mechanical energy into electricity and is used in energy harvesting devices. In this paper, synchronisation conditions in regard to the excitation vibration are studied. We show that a phase shift of ninety degrees between the vibration excitation and the bender’s displacement provides the maximum power from the mechanical excitation. However, the piezoelectric material is prone to power losses; hence the bender’s displacement amplitude is optimised in order to increase the amount of power which is converted into electricity. In the paper, we use active energy harvesting to control the power flow, and all the results are achieved at a frequency of 200 Hz which is well below the generator’s resonant frequency.

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Study on Piezoelectric Stacked Generator

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.267.1005 ◽

2011 ◽

Vol 267 ◽

pp. 1005-1009 ◽

Cited By ~ 1

Author(s):

Wei Lin ◽

Zhe Li ◽

Wen Chen ◽

Jing Zhou

Keyword(s):

Energy Harvesting ◽

Energy Conversion ◽

Electrical Characteristic ◽

Driving Forces ◽

Mechanical Energy ◽

Electrical Power ◽

Characteristic Parameters ◽

Piezoelectric Generator ◽

Theoretical Predictions ◽

External Driving

A piezoelectric generator based on the piezoelectric stacked elements is applied to realize electro- mechanical energy conversion in this paper. The piezoelectric stacked generator is constructed. The relational expression about output electrical characteristic parameters, the constructional dimension parameters of piezoelectric stack elements and external driving forces is discussed here. Theoretical predictions confirmed by experimental results show that the piezoelectric generator produces electrical power with higher efficiency, and energy harvesting circuit can harvest energy from the piezoelectric generator effectively.

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Low-Cost, High-Performance Piezoelectric Nanocomposite for Mechanical Energy Harvesting

IEEE Sensors Journal ◽

10.1109/jsen.2021.3100869 ◽

2021 ◽

pp. 1-1

Author(s):

Nadeem Tariq Beigh ◽

Dhiman Mallick

Keyword(s):

Energy Harvesting ◽

High Performance ◽

Low Cost ◽

Mechanical Energy

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Retraction: A bio-based piezoelectric nanogenerator for mechanical energy harvesting using nanohybrid of poly(vinylidene fluoride)

Nanoscale Advances ◽

10.1039/d0na90066d ◽

2021 ◽

Author(s):

Anna Rulka

Keyword(s):

Energy Harvesting ◽

Vinylidene Fluoride ◽

Mechanical Energy ◽

Poly Vinylidene Fluoride

Retraction for ‘A bio-based piezoelectric nanogenerator for mechanical energy harvesting using nanohybrid of poly(vinylidene fluoride)’ by Pralay Maiti et al., Nanoscale Adv., 2019, 1, 3200–3211, DOI: 10.1039/C9NA00214F.

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