Constructing high-performance and versatile liquid-solid triboelectric nanogenerator with inflatable columnar units  

作　　者：Lin Luo Chao Liu Rui Gu Mingxia Chen Yifei Wang Nuo Xu Yao Xiong Jiahong Yang Ziwei Huo Yang Liu Liang Wei Zhong Lin Wang Qijun Sun 

机构地区：[1]Center on Nanoenergy Research,Institute of Science and Technology for Carbon Peak&Neutrality,Key Laboratory of Blue Energy and Systems Integration(Guangxi University),Education Department of Guangxi Zhuang Autonomous Region,School of Physical Science&Technology,Guangxi University,Nanning 530004,People’s Republic of China [2]Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Beijing 101400,People’s Republic of China [3]Center on Nanoenergy Research,School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,People’s Republic of China [4]School of Nanoscience and Technology,University of Chinese Academy of Sciences,Beijing 100049,People’s Republic of China [5]Georgia Institute of Technology,Atlanta,GA 30332,United States of America [6]Shandong Zhongke Naneng Energy Technology Co.,Ltd,Dongying 257061,People’s Republic of China

出　　处：《International Journal of Extreme Manufacturing》2025年第1期580-593,共14页极端制造(英文)

基　　金：supported by the National Key Research and Development Program of China(2023YFB3208102,2021YFB3200304);the National Natural Science Foundation of China(52073031);Beijing Nova Program(Z211100002121148);Fundamental Research Funds for the Central Universities(E0EG6801X2);the‘Hundred Talents Program’of the Chinese Academy of Sciences.

摘　　要：The use of water resources for energy generation has become increasingly prevalent,encompassing the conversion of kinetic energy from streams,tides,and waves into renewable electrical power.Water energy sources offer numerous benefits,including widespread availability,stability,and the absence of carbon dioxide and other greenhouse gas emissions,making them a clean and environmentally friendly form of energy.In this work,we develop a droplet-based liquid-solid triboelectric nanogenerator(LS-TENG)using sophisticatedly designed inflatable columnar structures with inner and outer dual-electrodes.This device can be utilized to harvest both the internal droplet-rolling mechanical energy and the external droplet-falling mechanical energy,capable of being assembled into various structures for versatile applications.The design incorporates a combined structure of both internal and external TENG to optimize output performance via multiple energy harvesting strategies.The internal structure features a dual-electrode columnar-shaped LS-TENG,designed to harvest fluid kinetic energy from water droplets.By leveraging the back-and-forth motion of a small amount of water within the air column,mechanical energy can be readily collected,achieving a maximum mass power density of 9.02 W·Kg^(−1)and an energy conversion efficiency of 10.358%.The external component is a droplet-based LS-TENG,which utilizes a double-layer capacitor switch effect elucidated with an equivalent circuit model.Remarkably,without the need for pre-charging,a single droplet can generate over 140 V of high voltage,achieving a maximum power density of 7.35 W·m^(−2)and an energy conversion efficiency of 22.058%.The combined LS-TENG with a sophisticated inflatable columnar structure can simultaneously collect multiple types of energy with high efficacy,exhibiting great significance in potential applications such as TENG aeration rollers,inflatable lifejacket,wind energy harvesting,TENG tents,and green houses.

关 键 词：solid-liquid triboelectrification inflatable columnar structure combined AC/DC TENG energy harvesting self-powered sensing 

分 类 号：TG1[金属学及工艺—金属学]