1] Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China [2] School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA [3].
1] School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA [2].
Nat Commun. 2014 Mar 4;5:3426. doi: 10.1038/ncomms4426.
Harvesting mechanical energy is an important route in obtaining cost-effective, clean and sustainable electric energy. Here we report a two-dimensional planar-structured triboelectric generator on the basis of contact electrification. The radial arrays of micro-sized sectors on the contact surfaces enable a high output power of 1.5 W (area power density of 19 mW cm(-2)) at an efficiency of 24%. The triboelectric generator can effectively harness various ambient motions, including light wind, tap water flow and normal body movement. Through a power management circuit, a triboelectric-generator-based power-supplying system can provide a constant direct-current source for sustainably driving and charging commercial electronics, immediately demonstrating the feasibility of the triboelectric generator as a practical power source. Given exceptional power density, extremely low cost and unique applicability resulting from distinctive mechanism and structure, the triboelectric generator can be applied not only to self-powered electronics but also possibly to power generation at a large scale.
采集机械能是获取具有成本效益、清洁和可持续的电能的重要途径。在这里，我们基于接触起电原理报告了一种二维平面结构的摩擦电发电机。接触表面上的微尺寸扇形阵列允许在效率为 24%时输出 1.5 W 的高功率（面功率密度为 19 mW/cm²）。这种摩擦电发电机可以有效地利用各种环境运动，包括微风、自来水流动和正常的身体运动。通过功率管理电路，基于摩擦电发电机的供电系统可为商用电子产品提供可持续的恒流直流电源，立即展示了摩擦电发电机作为实用电源的可行性。由于独特的机制和结构，摩擦电发电机具有卓越的功率密度、极低的成本和独特的适用性，不仅可以应用于自供电电子设备，还可能应用于大规模发电。
