Wireless sensor network nodes are widely used in wearable devices, consumer electronics, and industrial electronics and are a crucial component of the Internet of Things (IoT). Recently, advanced power technology with sustainable energy supply and pollution-free characteristics has become a popular research focus. Herein, to realize an unattended and reliable power supply unit suitable for distributed IoT systems, we develop a high-performance triboelectric-electromagnetic hybrid nanogenerator (TEHNG) to harvest mechanical energy. The TEHNG achieves a high load power of 21.8 mW by implementing improvements of material optimization, configuration optimization and pyramid microstructure design. To realize a self-powered integrated microsystem, a power management module, energy storage module, sensing signal processing module, and microcontroller unit are integrated into the TEHNG. Furthermore, an all-in-one wireless multisensing microsystem comprising the TEHNG, the abovementioned integrated functional circuit and three sensors (temperature, pressure, and ultraviolet) is built. The milliwatt microsystem operates continuously with the TEHNG as the only power supply, achieving self-powered operations of sensing environmental variables and transmitting wireless data to a terminal in real time. This shows tremendous application potential in the IoT field.

无线传感器网络节点广泛应用于可穿戴设备、消费电子和工业电子领域，是物联网（IoT）的重要组成部分。近年来，具有可持续能源供应和无污染特点的先进电力技术成为热门研究热点。在这里，为了实现适用于分布式物联网系统的无人值守且可靠的电源装置，我们开发了一种高性能摩擦电电磁混合纳米发电机（TEHNG）来收集机械能。通过材料优化、配置优化和金字塔微结构设计的改进，TEHNG 实现了 21.8 mW 的高负载功率。为了实现自供电集成微系统，TEHNG 中集成了电源管理模块、储能模块、传感信号处理模块和微控制器单元。此外，还构建了由TEHNG、上述集成功能电路和三个传感器（温度、压力和紫外线）组成的一体化无线多传感微系统。毫瓦微系统以TEHNG作为唯一电源持续运行，实现感知环境变量并将无线数据实时传输到终端的自供电操作。这显示了物联网领域巨大的应用潜力。