Chenguo Hu1
Chongqing University1
Triboelectric nanogenerator is one of the most important technologies to solve distributed energy supply of wireless sensor networks where the wired electricity is not available. However, its low output efficiency and interface abrasion hinder its practical application. The main factors affecting the output charge density of TENG are poor interface contact, air breakdown effect and insufficient charge generation capacity. Mechanical wear and thermal loss of the interface are another challenge for the TENG, which limits its durability and practical application. In this paper, I will introduce the strategies adopted by our research group to improve the output performance of the TENG and reduce interface abrasion, including charge excitation, material modification and enhancement of contact efficiency, and intermittent contact mode, non-contact mode, static friction mode and liquid lubrication mode. The mechanism of charge transportation and the device design method of obtaining maximized output charge density are presented.<br/><br/><br/>References<br/>Li Long, Wenlin Liu, Zhao Wang, Wencong He, Gui Li, Qian Tang, Hengyu Guo, Xianjie Pu, Yike Liu, Chenguo Hu, High performance floating triboelectric nanogenerator with charge excitation for efficient ambient mechanical micro energy harvesting, Nature Communications, (2021) 12:4689.<br/>Yike Liu, Wenlin Liu, Zhao Wang, Wencong He, Qian Tang, Yi Xi, Xue Wang, Hengyu Guo and Chenguo Hu, Quantifying contact status and air breakdown model of charge excitation TENG for maximum charge density, Nature Communications, 2020, 11:1599<br/>Wencong He, Wenlin Liu, Jie Chen, Zhao Wang, Yike Liu, Xianjie Pu, Qian Tang, Hengyu Guo, Chenguo Hu, Boosting output performance of sliding mode triboelectric nanogenerator by screening layer enabled charge space accumulation effect, Nature Communications, 2020 11:4277<br/>Wenlin Liu, Zhao Wang, Gao Wang, Guanlin Liu, Jie Chen, Xianjie Pu, Yi Xi, Xue Wang, Hengyu Guo, Chenguo Hu, Zhong Lin Wang, Integrated charge excitation triboelectric nanogenerator, Nature Communications, 2019, 10:1426.<br/>Shaoke Fu, Wencong He, Qian Tang, Zhao Wang, Wenlin Liu, Qianying Li, Li Long, Chuncai Shan, Chenguo Hu and Hong Liu, Ultrarobust and High-Performance Rotational Hydrodynamic Triboelectric Nanogenerator Enabled by Automatic Mode Switch and Charge Excitation, Advanced Materials, 2022, 34, 2105882.<br/>Huiyuan Wu, Wencong He, Chuncai Shan, Shaoke Fu, Qian Tang, Hengyu Guo, Yan Du, Wenlin Liu, Chenguo Hu, Achieving Remarkable Charge Density Via Self-polarization of Polar High-k Material in Charge-excitation Triboelectric Nanogenerator, Advanced Materials, 2022, 34, 2109918<br/>Qian Tang, Zhao Wang, Wenxuan Cang, Jianfeng Sun, Wencong He, Qixuan Zeng, Hengyu Guo*, Chenguo Hu*, Interface static friction enabled ultra-durable and high output sliding mode triboelectric nanogenerator, Advanced Functional Materials, 2022, 32, 2202055 DOI:10.1002/adfm.202202055<br/>Jian Wang, Huiyuan Wu, Chenguo Hu, Hong Liu, A ultrafast self-polarization effect in barium titanate filled Poly (vinylidene fluoride) composite film enabled by self-charge excitation triboelectric nanogenerator, Advanced Functional Materials, 2022, 32, 2204322<br/>Huiyuan Wu, Shaoke Fu, Wencong He, Chuncai Shan, Jian Wang, Yan Du, Shihe Du, Bangxing Li, and Chenguo Hu, Improving and Quantifying Surface Charge Density via Charge Injection Enabled by Air Breakdown, Advanced Functional Materials, 2022, 32, 2109918<br/>Wencong He, Wenlin Liu, Shaoke Fu, Huiyuan Wu, Chuncai Shan, Zhao Wang, Yi Xi, Xue Wang, Hengyu Guo and Chenguo Hu, Ultrahigh Performance Triboelectric Nanogenerator Enabled by Charge Transmission in Interfacial Lubrication and Potential Decentralization Design, Research, 2022, 2022, 9812865