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Advances in Triboelectric Nanogenerators for blue energy Harvesting and Marine Environmental Monitoring

Engineering 2024年第2期33卷 204-224页

作者： Yang Jiang Xi Liang Tao Jiang Zhong Lin Wang CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro–Nano Energy and SensorsBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049China Georgia Institute of Technology AtlantaGA 30332USA

blue energy,which includes rainfall,tidal current,wave,and water-flow energy,is a promising renewable resource,although its exploitation is limited by current technologies and thus remains *** form of energy is mainly harvested by electromagnetic generators(EMGs),which generate electricity via Lorenz force-driven electron *** nano genera tors(TENGs)and TENG networks exhibit superiority over EMGs in low-frequency and high-entropy energy harvesting as a new approach for blue energy harvesting.A TENG produces electrical outputs by adopting the mechanism of Maxwell’s displacement *** date,a series of research efforts have been made to optimize the structure and performance of TENGs for effective blue energy harvesting and marine environmental *** the great progress that has been achieved in the use of TENGs in this context so far,continuous exploration is required in energy conversion,device durability,power management,and environmental *** review reports on advances in TENGs for blue energy harvesting and marine environmental *** introduces the theoretical foundations of TENGs and discusses advanced TENG prototypes for blue energy harvesting,including TENG structures that function in freestanding and contact-separation *** enhancement strategies for TENGs intended for blue energy harvesting are also ***,marine environmental applications of TENGs based on blue energy harvesting are discussed.

关键词： Triboelectric nanogenerator TENG networks blue energy energy harvesting Ocean sensors

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Triboelectric nanogenerators:the beginning of blue dream

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Frontiers of Chemical Science and Engineering 2023年第6期17卷 635-678页

作者： Wanli Wang Dongfang Yang Xiaoran Yan Licheng Wang Han Hu Kai Wang College of Electrical Engineering Weihai Innovation Research InstituteQingdao UniversityQingdao 266071China State Key Laboratory of Heavy Oil Processing College of Chemistry and Chemical EngineeringChina University of Petroleum(East China)Qingdao 266580China Xi’an Traffic Engineering Institute Xi’an 710300China School of Information Engineering Zhejiang University of TechnologyHangzhou 310023China

Wave energy is inexhaustible renewable *** full use of the huge ocean wave energy resources is the dream of mankind for hundreds of ***,the utilization of water wave energy is mainly absorbed and transformed by electromagnetic generators(EMGs)in the form of mechanical ***,waves usually have low frequency and uncertainty,which means low power generation efficiency for ***,in this slow current and random direction wave case,the triboelectric nanogenerator(TENG)has a relatively stable output power,which is suitable for collecting blue *** article summarizes the main research results of TENG in harvesting blue ***,based on Maxwell’s displacement current,the basic principle of the nanogenerator is ***,four working modes and three applications of TENG are introduced,especially the application of TENG in blue *** currently used in blue energy harvesting is divided into four categories and discussed in *** TENG harvests water wave energy,it is meaningless if it cannot be ***,the modular storage of TENG energy is *** output power of a single TENG unit is relatively low,which cannot meet the demand for high ***,the networking strategy of large-scale TENG is further ***’s energy comes from water waves,and each TENG’s output has great randomness,which is very unfavorable for the energy storage after large-scale TENG *** this basis,this paper discusses the power management methods of *** addition,in order to further prove its economic and environmental advantages,the economic benefits of TENG are also ***,the development potential of TENG in the field of blue energy and some problems that need to be solved urgently are briefly summarized.

关键词： blue energy triboelectric nanogenerator water wave energy networking strategy micro nano-energy self-powered devices

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Chain-flip plate triboelectric nanogenerator arranged longitudinally under water for harvesting water wave energy

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Nano Research 2023年第9期16卷 11900-11906页

作者： Yan Du Qian Tang Shaoke Fu Chuncai Shan Qixuan Zeng Hengyu Guo Chenguo Hu Department of Applied Physics Chongqing UniversityChongqing 400044China

Triboelectric nanogenerator(TENG)is a new cost-effective blue energy harvesting technology for its great performance in low ***,many related energy harvesters operate on water surface,ignoring the ocean’s ***,a chainflipped plate TENG(CFP-TENG),consisting of longitudinally arranged repeating units,is proposed to collect wave *** chain structure design allows the surface wave energy to act effectively on the underwater *** maximum output power per unit ocean area reaches 1.5 W·m^(-2) at a loading resistance of 30 MΩ.Optimization of device parameters and application demonstrations are *** with previous works,the utilization rate of wave energy has been significantly *** work not only provides a new method to optimize the output of TENG but also makes a crucial step in promoting practical applications of TENG in renewable blue energy.

关键词： triboelectric nanogenerator chain-flip plate wave energy blue energy

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Development, applications, and future directions of triboelectric nanogenerators

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Nano Research 2018年第6期11卷 2951-2969页

作者： Mingyuan Ma Zhuo Kang Qingliang Liao Qian Zhang Fangfang Gao Xuan Zhao Zheng Zhang Yue Zhang State Key Laboratory for Advanced Metals and Materials School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China Beijing Municipal Key Laboratory of Advanced energy Materials and Technologies University of Science and Technology Beijing Beijing 100083 China

Since the invention of the triboelectric nanogenerator （TENG） in 2012, it has become one of the most vital innovations in energy harvesting technologies. The TENG has seen enormous progress to date, particularly in applications for energy harvesting and self-powered sensing. It starts with the simple working principles of the triboelectric effect and electrostatic induction, but can scavenge almost any kind of ambient mechanical energy in our daily life into electricity. Extraordinary output performance optimization of the TENG has been achieved, with high area power density and energy conversion efficiency. Moreover, TENGs can also be utilized as self-powered active sensors to monitor many environmental parameters. This review describes the recent progress in mainstream energy harvesting and self-powered sensing research based on TENG technology. The birth and development of the TENG are introduced, following which structural designs and performance optimizations for output performance enhancement of the TENG are discussed. The major applications of the TENG as a sustainable power source or a self-powered sensor are presented. The TENG, with rationally designed structures, can convert irregular and mostly low-frequency mechanical energies from the environment, such as human motion, mechanical vibration, moving automobiles, wind, raindrops, and ocean waves. In addition, the development of self-powered active sensors for a variety of environmental simulations based on the TENG is presented. The TENG plays a great role in promoting the development of emerging Internet of Things, which can make everyday objects connect more smartly and energy- efficiently in the coming years. Finally, the future directions and perspectives of the TENG are outlined. The TENG is not only a sustainable micro-power source for small devices, but also serves as a potential macro-scale generator of power from water waves in the future.

关键词： triboelectric nanogenerator energy harvesting self-powered sensors blue energy Internet of Things

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Scalable rolling-structured triboelectric nanogenerator with high power density for water wave energy harvesting toward marine environmental monitoring

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Nano Research 2023年第9期16卷 11646-11652页

作者： Yuxue Duan Hongxuan Xu Shijie Liu Pengfei Chen Xiangyi Wang Liang Xu Tao Jiang Zhong Lin Wang School of Chemistry and Chemical Engineering Guangxi UniversityNanning 530004China CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-Nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China College of Engineering Zhejiang Normal UniversityJinhua 321004China School of Nanoscience and Engineering University of Chinese Academy of SciencesBeijing 100049China Georgia Institute of Technology AtlantaGA 30332-0245USA

In the context of advocating a green and low-carbon era,ocean energy,as a renewable strategic resource,is an important part of planning and building a new energy *** nanogenerator(TENG)arrays provide feasible and efficient routes for large-scale harvesting of ocean *** previous work,a spherical rolling-structured TENG with three-dimensional(3D)electrodes based on rolling motion of dielectric pellets was designed and fabricated for effectively harvesting low-frequency water wave *** this work,the external shape of the scalable rolling-structured TENG(SR-TENG)and internal filling amount of pellets were mainly optimized,achieving an average power density of 10.08 W∙m^(−3)under regular *** actual water waves,the SR-TENG can deliver a maximum peak power density of 80.29 W∙m^(−3)and an average power density of 6.02 W∙m^(−3),which are much greater than those of most water wave-driven ***,through a power management,an SR-TENG array with eight units was demonstrated to successfully power portable electronic devices for monitoring the marine *** SR-TENGs could promote the development and utilization of ocean blue energy,providing a new paradigm for realizing the carbon neutrality goal.

关键词： triboelectric nanogenerator scalable rolling-structured water wave energy harvesting blue energy marine environmental monitoring

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A triboelectric nanogenerator based on a spiral rotating shaft for efficient marine energy harvesting of the hydrostatic pressure differential

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Materials Reports(energy) 2024年第3期4卷 69-76页

作者： Xuemei Song Yuan Chao Pan Chang Bao Han Chang Xin Liu Yaxiaer Yalikun Hui Yan Yang Yang Key Laboratory of Advanced Functional Materials(Beijing University of Technology) Ministry of EducationBeijing Key Lab of Microstructure and Property of Advanced MaterialsBeijing University of TechnologyBeijing100124PR China Institute of Deep-Sea Science and Engineering Chinese Academy of SciencesSanya572000PR China Division of Materials Science Nara Institute of Science and Technology8916-5 Takayama-choIkomaNara630-0192Japan

Equipment used in underwater sensing and exploration typically relies on cables or batteries for energy supply,resulting in a limited and inconvenient energy supply and marine environmental pollution that hinder the sustainable development of distributed ocean sensing ***,we design a deep-sea differential-pressure triboelectric nanogenerator(DP-TENG)based on a spiral shaft drive using modified polymer materials to harness the hydrostatic pressure gradient energy at varying ocean depths to power underwater *** spiral shaft structure converts a single compression into multiple rotations of the TENG rotor,achieving efficient conversion of differential pressure *** multi-pair electrode design enables the DP-TENG to generate a peak current of 61.7μA,the instantaneous current density can reach 0.69μA cm^(-2),and the output performance can be improved by optimizing the spiral angle of the *** DP-TENG can charge a 33μF capacitor to 17.5 V within five working *** can also power a digital calculator and light up 116 commercial power light-emitting diodes,demonstrating excellent output *** its simple structure,low production cost,and small form factor,the DP-TENG can be seamlessly integrated with underwater *** results hold broad prospects for underwater blue energy harvesting and are expected to contribute to the development of self-powered equipment toward emerging“smart ocean”and blue economy applications.

关键词： Triboelectric nanogenerators blue energy energy harvesting Differential pressure energy Self-power sensor

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An ultra-low-frequency, broadband, multi-stable,frequency up converted and piezoelectricelectromagnetic-triboelectric hybrid energy harvester for powering portable electronics

An ultra-low-frequency, broadband, multi-stable,frequency up...

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第十八届全国非线性振动暨第十五届全国非线性动力学和运动稳定性学术会议（NVND2021）

作者： Chen Wang School of Civil Engineering and Mechanics Yanshan University

In this work, a highly miniaturized, ultra-low-frequency, broadband, multi-stable, frequency up-converted and piezoelectric-electromagnetic-triboelectric hybrid portable energy harvester is presented to harvest biomechanical vibrations efficiently. This harvester is developed by using a novel multi-stability-based frequency up-converted approach, in which two new configurations of magneto-multi-stable oscillators are highly integrated so that the displacement stroke of the low-frequency vibration and the mechanical energy transfer process can overlap almost completely, and consequently,magnify the power output and power density under low-frequency broadband vibrations. Subsequently, by hybridizing two impact-based piezoelectric generators, an electromagnetic generator, a sliding triboelectric nanogenerator and a contact-separation triboelectric nanogenerator in a highly compact arrangement, more electric power can be generated from single mechanical motion, which successfully enhanced the output performance. A prototype was fabricated and tested using both shaker and human motions. Under the shaker testing, the prototype performed a wide bandwidth of 1-11 Hz for tri-stable mode(vertical) and 1-12 Hz for quad-stable mode(horizontal), and generated maximum output powers of 85.65 mW across the optimum resistances, corresponding to a normalized power density of 3.69 m W cm-3 g-2 at 3 Hz under 1 *** human motion testing, the prototype showed good performance in different wearable position of the human body and could power thermohygrometers and 100 commercial light-emitting diodes *** study shows the great potential of the proposed harvester as a sustainable power source for wearable and portable electronics.

关键词： Tri-stable nonlinearity piezoelectric-electromagnetic-triboelectric hybrid Frequency up-conversion blue energy human biomechanical energy

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