Water waves are a promising source of renewable energy. Their kinetic energy can potentially drive energy harvesters. Herein, we describe a fully packed spheroidal smart buoy hybrid generator (SB-HG) composed of triboelectric nanogenerator (TENG) and an electromagnetic generator (EMG) for scavenging water-wave energy. Each of the energy harvesting components generated electrical outputs from the same wave motion. A position-tracking long-range (LoRa) device placed in the buoy enabled identification of the buoy location when it was placed in the sea for energy harvesting, navigation, and fishnet tracking purposes. A solar cell placed on the top of the buoy powered the device under calm wave conditions. The TENG and EMG components generated maximum electrical outputs of 100 V/2 μA and 20 V/15 mA, respectively. Combining the devices efficiently converted the kinetic energy of the waves into useful electrical energy, which was used to charge a commercial capacitor and lithium-ion battery. The charged battery drove the position-tracking LoRa device for a positioning application and demonstrated that the SB-HG device is an inexpensive and reliable candidate for ocean navigation systems. Our water-wave energy harvester is highly promising as a clean energy power source and as a self-powered sensor for various environmental monitoring systems.

水浪是可再生能源的有希望的来源。它们的动能可以潜在地驱动能量收集器。在这里，我们描述了一种由摩擦电纳米发电机（TENG）和电磁发电机（EMG）组成的完全堆积的球形智能浮标混合发电机（SB-HG），用于清除水波能量。每个能量收集组件都通过相同的波动产生电输出。放置在浮标中的位置跟踪远程（LoRa）设备可以将浮标放置在海中以进行能量收集，导航和渔网跟踪，从而识别浮标的位置。放置在浮标顶部的太阳能电池在海浪条件下为设备供电。TENG和EMG组件分别产生100 V / 2μA和20 V / 15 mA的最大电气输出。将这些设备组合在一起，可以将波的动能有效地转换为有用的电能，该电能用于为商用电容器和锂离子电池充电。充电后的电池驱动了用于定位应用的位置跟踪LoRa设备，并证明SB-HG设备是用于海洋导航系统的廉价且可靠的候选产品。我们的水波能量收集器作为清洁能源和对各种环境监测系统的自供电传感器具有很高的前景。充电后的电池驱动了用于定位应用的位置跟踪LoRa设备，并证明SB-HG设备是用于海洋导航系统的廉价且可靠的候选产品。我们的水波能量收集器作为清洁能源和对各种环境监测系统的自供电传感器具有很高的前景。充电后的电池驱动了用于定位应用的位置跟踪LoRa设备，并证明SB-HG设备是用于海洋导航系统的廉价且可靠的候选产品。我们的水波能量收集器作为清洁能源和对各种环境监测系统的自供电传感器具有很高的前景。