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Recent advances in all-in-one flexible supercapacitors

一体化柔性超级电容器的研究进展

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Abstract

The rise of personalized flexible electronics has promoted the rapid development of flexible supercapacitors due to their long service life, fast charging-discharging rates and safe operation. Different from the traditional flexible supercapacitors, the all-in-one integrated flexible supercapacitors are more resistant to deformation and lower interface resistance, which have a broader application prospect in the field of flexible electronics. This review briefly summarizes the preparation methods and electrochemical properties of some typical all-in-one supercapacitors, represented by planar and fibrous structures in recent years. Firstly, the basic understanding of traditional flexible supercapacitors and all-in-one integrated flexible supercapacitors, and the key parameters of the performance of flexible supercapacitors are introduced. Subsequently, the hydrogel matrix all-in-one supercapacitors with different functional characteristics (stretchable, self-healing and compressible) and the nonhydrogel matrix (separator, flexible membrane) all-in-one supercapacitors are discussed. Furthermore, the challenges and future development of flexible supercapacitors are considered.

摘要

个性化柔性电子产品的兴起推动了柔性超级电容器的快速发展, 这得益于它的使用寿命长、 充放电速度快和操作安全等特点. 不同于传统的柔性超级电容器, 一体化柔性超级电容器具有低界面电阻和更耐形变的特性, 因而在柔性电子领域中有更广阔的应用前景. 本文简要总结了一维纤维状和二维平面状的一些典型一体化超级电容器的制备方法和电化学性能. 首先介绍了传统柔性超级电容器和一体化柔性超级电容器的基本概念以及性能评估的主要参数, 随后介绍了具有不同功能特征(可拉伸、 自愈合和可压缩)水凝胶基和非水凝胶基一体化柔性超级电容器的研究进展, 并讨论了一体化柔性超级电容器在发展中面临的挑战, 且对未来的发展方向做出了展望.

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Acknowledgements

This work was supported by the National Key Research and Development Program of China (2017YFB0406301), the State Key Laboratory of Electrical Insulation and Power Equipment (EIPE19210), the 111 Project of China (B14040) and the Fundamental Research Funds for the Central University.

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Authors and Affiliations

  1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an, 710049, China

    Tiezhu Guo  (郭铁柱) & Di Zhou  (周迪)

  2. State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an, 710049, China

    Di Zhou  (周迪) & Wenfeng Liu  (刘文凤)

  3. International Research Centre for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, 710049, China

    Jinzhan Su  (苏进展)

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  1. Tiezhu Guo  (郭铁柱)
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Contributions

Author contributions Guo T and Zhou D wrote the manuscript; Liu W and Su J participated in the discussion.

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Correspondence to Di Zhou  (周迪).

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Tiezhu Guo received his bachelor degree from the Northwest Minzu University in 2015 and master degree from the South China University of Technology in 2018. He is a PhD candidate at Xi’an Jiaotong University. His research interests mainly focus on flexible supercapacitors.

Di Zhou is currently a professor in the School of Electronic Science and Engineering, Xi’an Jiaotong University. He received his PhD degree majored in electronic science and technology under the guidance of Prof. Xi Yao, from Xi’an Jiaotong University in 2009. He worked as a research associate in Prof. Ian Reaney’s group during 2015–2018 at the University of Sheffield. His research interests include microwave dielectric materials, low temperature co-fired ceramics technology (LTCC), energy storage capacitor materials, microwave absorption materials, and functional composite materials for high frequency/energy storage/microwave absorption. He is now an Associate Editor of Journal of the American Ceramic Society and a board member of Materials Research Bulletin.

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Guo, T., Zhou, D., Liu, W. et al. Recent advances in all-in-one flexible supercapacitors. Sci. China Mater. 64, 27–45 (2021). https://doi.org/10.1007/s40843-020-1417-8

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