Highly adaptive and broadband triboelectric energy harvester with stretching silicone rubber strip for variable harmonic frequency vibration  

作　　者：Taili Du Dianlong Shen Ziyue Xi Hongyong Yu Fangyang Dong Cong Zhao Meixian Zhu Yongjiu Zou Peiting Sun Minyi Xu 

机构地区：[1]Dalian Key Laboratory of Marine Micro/Nano Energy and Self-powered Systems,Marine Engineering College,Dalian Maritime University,Dalian 116026,China [2]Collaborative Innovation Research Institute of Autonomous Ship,Dalian Maritime University,Dalian 116026,China

出　　处：《Nano Research》2024年第5期4089-4099,共11页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.52101345,52101400);the Scientific Research Fund of Liaoning Provincial Education Department(No.LJKZ0055);the Dalian Outstanding Young Scientific and Technological Talents Project(No.2021RJ11);the Open Fund of National Center for International Research of Subsea Engineering Technology and Equipment(No.3132023354).

摘　　要：An enormous number of wireless sensing nodes(WSNs)are of great significance for the Internet of Things(IoT).It is tremendously prospective to realize the in-situ power supply of WSNs by harvesting unutilized mechanical vibration energy.A harmonic silicone rubber triboelectric nanogenerator(HSR-TENG)is developed focusing on ubiquitous constant working frequency machinery.The unique design of the strip serving as a flexible resonator realizes both soft contact and high and broadband output.The significant factors influencing the 1^(st)-order vibration mode of the strip are developed for realizing the harmonic frequency adaptation to external vibration.The surface treatment of the strip improves the output performance of HSR-TENG by 49.1%as well as eliminates the adhesion effect.The HSR-TENG is able to achieve a voltage output bandwidth of 19 Hz under a vibration strength of 3.0,showing its broadband capability.The peak power density of 153.9 W/m^(3)is achieved and 12×0.5 W light-emitting diodes(LEDs)are successfully illuminated by the HSR-TENG.It can continuously power a temperature sensor by harvesting the actual compressor vibration energy.In brief,the HSR-TENG provides a promising way for constant frequency vibration energy harvesting,so as to achieve in-situ power supply for the WSNs in the vicinity.

关 键 词：vibration energy harvesting triboelectric nanogenerator flexible silicone rubber strip harmonic vibration broadband 

分 类 号：TN92[电子电信—通信与信息系统]