A power generation device based on shape memory alloy and piezoelectric ceramic

Dong Cao, Chao Liu,Zhigang Yang,Sida Zhang

MATERIALS CHEMISTRY AND PHYSICS(2023)

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摘要
A power generation technology that combines shape memory alloy (SMA) and piezoelectric ceramic is proposed. The piezoelectric ceramic is pulled by the deformed SMA to produce a positive piezoelectric effect, which eventually generates electrical energy. The research was conducted through structural design, collection and storage of electrical energy, and experimental verification. The experimental results show that the power gen-eration device has an open circuit voltage of 11.6 V when heated by hot air at 100 degrees C. The device was used to charge a 1000 mu F/6.3 V capacitor through the energy harvesting circuit, and the final capacitor voltage was stabilized at about 6 V.
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关键词
Shape memory alloy,Piezoelectric ceramic,Positive piezoelectric effect,Energy acquisition,Piezoelectric power generation
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