Integrated energy storage system based on triboelectric nanogenerator in electronic devices
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REVIEW ARTICLE
Integrated energy storage system based on triboelectric nanogenerator in electronic devices Xiao Feng1, Yang Zhang2, Le Kang3, Licheng Wang4, Chongxiong Duan5, Kai Yin6, Jinbo Pang7, Kai Wang (✉)1
1 School of Electrical Engineering, Qingdao University, Qingdao 266071, China 2 Department of Energy “Galileo Ferraris”, Politecnico di Torino, Turin 10129, Italy 3 School of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China 4 School of Information Engineering, Zhejiang University of Technology, Hangzhou 310023, China 5 School of Materials Science and Energy Engineering, Foshan University, Foshan 528231, China 6 Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410012, China 7 Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, China
© Higher Education Press 2020
Abstract The emergence of electronic devices has brought earth-shaking changes to people’s life. However, an external power source may become indispensable to the electronic devices due to the limited capacity of batteries. As one of the possible solutions for the external power sources, the triboelectric nanogenerator (TENG) provides a novel idea to the increasing number of personal electronic devices. TENG is a new type of energy collector, which has become a hot spot in the field of nanotechnology. It is widely used at the acquisition and conversion of mechanical energy to electric energy through the principle of electrostatic induction. On this basis, the TENG could be integrated with the energy storage system into a selfpowered system, which can supply power to the electronic devices and make them work continuously. In this review, TENG’s basic structure as well as its working process and working mode are firstly discussed. The integration method of TENGs with energy storage systems and the related research status are then introduced in detail. At the end of this paper, we put forward some problems and discuss the prospect in the future. Keywords electronic devices, triboelectric nanogenerator, mechanical energy, self-powered system
Received January 19, 2020; accepted April 27, 2020 E-mail: [email protected]
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Introduction
Energy plays an indispensable role in people’s life, especially in the modern society. In today’s social media, the environmental problems can attract a lot of public concerns on the massive consumption of fossil fuels. The replacement of fossil energy with a clean and renewable energy resource becomes a hot research direction and receives people’s wide attention [1–4]. The self-powered system could be a possible way to solve the growing global energy crisis by obtaining the energy in a recyclable way without pollution [5]. At the same time, electronic devices are becoming popular equipment in our daily life. Typically, li
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