Hybrid energy harvesters offer promising solutions for powering distributed sensors. However, achieving optimal synergy among multiple energy sources to attain superior performance remains challenging. Herein, we proposed an ultrahigh performance electric-field and vibration hybrid energy harvester leveraging induced charge excitation strategy (ICE-EVH). Induced charges generated by the electric-field energy harvester are pumped into a contact-separation triboelectric nanogenerator (TENG) to provide charge excitation. Subsequently, the mechanical motions of TENG-electrodes boost the electric potential of induced charges and the output energy. This hybrid paradigm enables effective synergy for harvesting electric-field and vibration energy with highly-efficient hybrid power management and ultrahigh energy density. The peak and average power densities reach 5.15 MW/m² and 1.02 W/m², respectively, significantly surpassing the combined output of individual harvesters and demonstrating a “1+1>2” hybrid performance. Finally, an all-in-one ICE-EVH prototype was developed and successfully powered a wireless camera. This work provides new insights for designing high-performance hybrid nanogenerators with broad application potential.

中文翻译：

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利用感应电荷激发策略的超高性能混合能量收集器


混合能量收集器为分布式传感器供电提供了有前途的解决方案。然而，在多种能源之间实现最佳协同作用以实现卓越性能仍然具有挑战性。在此，我们提出了一种利用感应电荷激励策略 （ICE-EVH） 的超高性能电场和振动混合能量收集器。电场能量收集器产生的感应电荷被泵入接触分离摩擦纳米发电机 （TENG） 以提供电荷激励。随后，TENG 电极的机械运动提高了感应电荷的电势和输出能量。这种混合模式通过高效的混合电源管理和超高能量密度，为收集电场和振动能量实现了有效的协同作用。峰值和平均功率密度分别达到 5.15 MW/m² 和 1.02 W/m²，大大超过了单个收割机的总输出，并展示了“1+1>2”的混合动力性能。最后，开发了一体化 ICE-EVH 原型并成功为无线摄像机供电。这项工作为设计具有广泛应用潜力的高性能混合纳米发电机提供了新的见解。