Triboelectric nanogenerators have made great progress and paved the way for green energy, self-powered implantable medical devices and a large number of sensors in the Internet of Things. Maxwell's displacement current is the fundamental theoretical framework of nanogenerators. Quantum model of charge transfer between atoms have been devoted to understanding the triboelectric effect. Increasing the output power of triboelectric nanogenerators is one of the most important subjects for practical application. Here, we study the charge transfer process in triboelectric materials and propose a triboelectric material charge transfer dynamic model. Dynamic charge transfer enables triboelectric nanogenerators to achieve high surface charge density and the superior device robustness, which can significantly improve the output power and life time of triboelectric nanogenerators. The charge transfer model provides not only deeply understanding for high performance of triboelectric nanogenerator, but also a useful guide for the optimization and design of high performance triboelectric materials.

摩擦电动纳米发电机取得了长足的进步，为绿色能源，自供电植入式医疗设备和物联网中的大量传感器铺平了道路。麦克斯韦的位移电流是纳米发电机的基本理论框架。原子之间电荷转移的量子模型已经致力于理解摩擦电效应。增大摩擦电纳米发电机的输出功率是实际应用中最重要的课题之一。在这里，我们研究了摩擦电材料中的电荷转移过程，并提出了摩擦电材料中电荷转移的动力学模型。动态电荷转移使摩擦电纳米发电机能够实现高表面电荷密度和卓越的器件耐用性，可以显着提高摩擦电纳米发电机的输出功率和使用寿命。电荷转移模型不仅为摩擦纳米发电机的高性能提供了深刻的理解，而且为高性能摩擦电材料的优化设计提供了有用的指导。