Wind energy is a highly effective renewable energy source that can be used to alleviate environmental problems worldwide. However, the variability of wind inhibited the development of wind power generators such as limited directional conditions, restrictions pertaining to the installation sites, occurrence of mechanical failures, and limited wind speed ranges. In here, to overcome these limitation, we developed a stackable disk-shaped wind-rolling triboelectric nanogenerator (DWR-TENG) to generate energy from omnidirectional wind. Its disk-shaped design ensures that the device does not involve any restrictions related to the wind direction or installation. Furthermore, lightweight charged spheres in the device can reduce the occurrence of mechanical failures and expand the wind speed range (operating in 6.5–17.5 m/s) for the generator operation. The performance of the DWR-TENG was evaluated considering various design parameters by conducting experiments and an FEM simulation. Specifically, the DWR-TENG can be easily stacked in several layers, thereby exhibiting an enhanced charging efficiency.

风能是一种高效的可再生能源，可用于缓解全世界的环境问题。然而，风的可变性抑制了风力发电机的发展，例如方向条件有限，与安装地点有关的限制，机械故障的发生以及风速范围有限。在这里，为了克服这些限制，我们开发了一种可堆叠的盘状风滚动式摩擦电纳米发电机（DWR-TENG），以从全向风中产生能量。其盘形设计确保该设备不会受到任何与风向或安装相关的限制。此外，设备中的轻质带电球可以减少机械故障的发生，并扩大发电机运行的风速范围（运行速度为6.5-17.5 m / s）。通过进行实验和有限元模拟，考虑了各种设计参数，对DWR-TENG的性能进行了评估。具体地，DWR-TENG可以容易地堆叠为多层，从而表现出增强的充电效率。