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A synchronous piezoelectric–triboelectric–electromagnetic hybrid generator for harvesting vibration energy
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2020-11-9 , DOI: 10.1039/d0se01201g Huidrom Hemojit Singh 1, 2, 3, 4 , Dheeraj Kumar 1, 2, 3, 4 , Neeraj Khare 1, 2, 3, 4
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2020-11-9 , DOI: 10.1039/d0se01201g Huidrom Hemojit Singh 1, 2, 3, 4 , Dheeraj Kumar 1, 2, 3, 4 , Neeraj Khare 1, 2, 3, 4
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Combining different devices to harvest energy is a novel strategy to increase the efficiency and applicability of devices that harvest mechanical energy. In the present work, we designed and fabricated a hybrid generator by combining piezoelectric, triboelectric, and electromagnetic (EM) effects to harvest mechanical vibrations. With the selection of ZnO–PVDF, a highly piezoelectric material as one of the contacting materials for the triboelectric effect allowed us to combine both the piezoelectric and triboelectric effects without the need to fabricate each unit individually. Because of the design of the device, the electricity from each effect was generated simultaneously. We achieved a maximum open-circuit output voltage of ∼192 V and a short-circuit current of ∼2.78 mA from the piezoelectric–triboelectric and EM hybrid device. The hybrid system was shown to be able to charge a 10 μF capacitor up to a voltage of 7.35 V in a short period of 170 s, an achievement not possible with the individual units. The maximum saturation voltage measured across the capacitor increased after combining the trio of effects, i.e., the piezoelectric, triboelectric, and EM effects, a feature that expands the applicability of the device to power instruments requiring higher voltages. The application potentials of the hybrid device in powering a digital calculator, screw gauge meter, and electrolysis of water to generate H2/O2 were demonstrated. The present work established a novel and practical approach to generate electricity from mechanical motions by combining piezoelectric–triboelectric and EM effects.
中文翻译：
同步压电-摩擦-电磁混合发电机，用于收集振动能量
组合不同的设备以收集能量是一种新颖的策略，可以提高收集机械能的设备的效率和适用性。在当前的工作中，我们通过组合压电，摩擦电和电磁（EM）效应来设计和制造出一种混合发电机，以收集机械振动。通过选择ZnO-PVDF，一种高压电材料作为摩擦电效应的接触材料之一，使我们能够将压电效应和摩擦电效应结合起来，而无需单独制造每个单元。由于设备的设计，每个效果产生的电同时产生。通过压电-摩擦电和EM混合设备，我们获得了最大开路输出电压〜192 V，短路电流〜2.78 mA。事实证明，该混合系统能够在170 s的短时间内为10 µF电容器充电至7.35 V的电压，这是单个单元无法实现的。结合三重效应后，电容器两端测得的最大饱和电压增加，即压电效应，摩擦效应和EM效应，该功能扩展了设备对需要更高电压的仪器的适用性。演示了该混合动力装置在为数字计算器，螺距计和电动电解水生成H 2 / O 2方面的应用潜力。目前的工作建立了一种新颖实用的方法，通过结合压电摩擦电和EM效应来从机械运动中发电。
更新日期：2020-12-17
中文翻译：
同步压电-摩擦-电磁混合发电机，用于收集振动能量
组合不同的设备以收集能量是一种新颖的策略，可以提高收集机械能的设备的效率和适用性。在当前的工作中，我们通过组合压电，摩擦电和电磁（EM）效应来设计和制造出一种混合发电机，以收集机械振动。通过选择ZnO-PVDF，一种高压电材料作为摩擦电效应的接触材料之一，使我们能够将压电效应和摩擦电效应结合起来，而无需单独制造每个单元。由于设备的设计，每个效果产生的电同时产生。通过压电-摩擦电和EM混合设备，我们获得了最大开路输出电压〜192 V，短路电流〜2.78 mA。事实证明，该混合系统能够在170 s的短时间内为10 µF电容器充电至7.35 V的电压，这是单个单元无法实现的。结合三重效应后，电容器两端测得的最大饱和电压增加，即压电效应，摩擦效应和EM效应，该功能扩展了设备对需要更高电压的仪器的适用性。演示了该混合动力装置在为数字计算器，螺距计和电动电解水生成H 2 / O 2方面的应用潜力。目前的工作建立了一种新颖实用的方法，通过结合压电摩擦电和EM效应来从机械运动中发电。
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