In this work, we demonstrated theoretically and experimentally the use of a dual Halbach magnet array and combined with a magnetically floated electromagnetic–triboelectric energy harvester to convert the mechanical energy of human induced motion into electrical energy. To achieve very high generated powers, the proposed hybrid energy harvester included a Halbach magnet array, nanostructured polytetrafluoroethylene (PTFE), Al nano–grass, and magnetic springs. A prototype of the hybrid energy harvester was fabricated and tested, with either a vibration exciter or human induced motion. Under a vibration exciter test, the fabricated hybrid energy harvester delivered a high output current of 3.74 mA and a power of 10.07 mW, corresponding to a volume power density of 344 W/m³ under a loading resistance of 710 Ω at 4.5 Hz resonant frequency and 0.6 g acceleration. In addition, the hybrid harvester was able to generate output powers of 5.8 mW, 2.6 mW, and 3.4 mW from human induced vibration of handshaking, walking, and slow running, respectively. The fabricated hybrid electromagnetic–triboelectric harvester exhibits a much higher power density than recently reported in similar works. This work takes a significant step toward hybrid energy harvesting from human induced motion and its potential applications in powered portable electronics.

在这项工作中，我们在理论上和实验上演示了双重Halbach磁体阵列的使用，并与磁悬浮电磁摩擦电能量采集器结合使用，将人体感应运动的机械能转换为电能。为了获得很高的发电功率，建议的混合式能量收集器包括Halbach磁体阵列，纳米结构的聚四氟乙烯（PTFE），Al纳米草和磁性弹簧。混合式能量采集器的原型已制造并通过振动激励器或人为感应运动进行了测试。在振动激励器测试下，装配好的混合式能量采集器提供了3.74 mA的高输出电流和10.07 mW的功率，对应于344 W / m ³的体积功率密度在4.5 Hz谐振频率和0.6 g加速度下的710Ω负载电阻下。此外，该混合收割机能够从人为握手，行走和慢速行驶引起的振动中分别产生5.8 mW，2.6 mW和3.4 mW的输出功率。人工制造的电磁-摩擦电混合收割机显示出的功率密度比类似工作中最近报道的要高得多。这项工作朝着从人体感应运动中获取混合能量及其在便携式便携式电子设备中的潜在应用迈出了重要的一步。