Bidirectional rotating direct-current triboelectric nanogenerator with self-adaptive mechanical switching for harvesting reciprocating motion  

作　　者：Donghan Lee Joonmin Chae Sumin Cho Jong Woo Kim Awais Ahmad Mohammad Rezaul Karim Moonwoo La Sung Jea Park Dongwhi Choi 

机构地区：[1]Department of Mechanical Engineering(Integrated Engineering Program),Kyung Hee University,1732 Deogyeong-daero,Yongin,Gyeonggi 17104,Republic of Korea [2]Department of Chemistry,University of Lahore,Lahore,Pakistan [3]Department of Mechanical Engineering,College of Engineering,King Saud University,Riyadh 11421,Saudi Arabia [4]School of Mechanical Engineering,Korea University of Technology and Education,1600 Chungjeol-ro,Cheonan,Chungnam 31253,Republic of Korea

出　　处：《International Journal of Extreme Manufacturing》2024年第4期324-335,共12页极端制造（英文）

基　　金：This work was supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(No.2022R1C1C1008831).;This work was also supported by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning(KETEP)grant funded by the Ministry of Trade,Industry and Energy of Korea(No.RS-2023-00244330).;S J P was supported by Basic Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Education(No.2018R1A6A1A03025526).

摘　　要：Amid the growing interest in triboelectric nanogenerators(TENGs)as novel energy-harvesting devices,several studies have focused on direct current(DC)TENGs to generate a stable DC output for operating electronic devices.However,owing to the working mechanisms of conventional DC TENGs,generating a stable DC output from reciprocating motion remains a challenge.Accordingly,we propose a bidirectional rotating DC TENG(BiR-TENG),which can generate DC outputs,regardless of the direction of rotation,from reciprocating motions.The distinct design of the BiR-TENG enables the mechanical rectification of the alternating current output into a rotational-direction-dependent DC output.Furthermore,it allows the conversion of the rotational-direction-dependent DC output into a unidirectional DC output by adapting the configurations depending on the rotational direction.Owing to these tailored design strategies and subsequent optimizations,the BiR-TENG could generate an effective unidirectional DC output.Applications of the BiR-TENG for the reciprocating motions of swinging doors and waves were demonstrated by harnessing this output.This study demonstrates the potential of the BiR-TENG design strategy as an effective and versatile solution for energy harvesting from reciprocating motions,highlighting the suitability of DC outputs as an energy source for electronic devices.

关 键 词：direct-current triboelectric nanogenerator mechanical rectification self-adaptive mechanical design harvesting reciprocation motion 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TM31[电气工程—电机]