与传统平面型超级电容器的两维结构不同，纤维状超级电容器具备独特的一维结构，使它不但具备传统超级电容器的高功率密度、快速充放电和长循环寿命等优势，还可以满足微型化、集成化和柔性化的可穿戴要求。自纤维状超级电容器问世以来，为了优化它的性能并促进其能够真正实际应用，研究人员陆续开展了持续的研究工作。首先介绍了纤维状超级电容器的工作原理，并讨论了基于不同制备方法构建的平行、缠绕和同轴3种结构的纤维状超级电容器，进而重点根据电极材料的不同对纤维状超级电容器进行了分类比较，详细讨论了其柔性、稳定性和比电容等相关性能。列举出纤维状超级电容器的几个发展方向，最后提出了该领域依然存在的问题并给出了它未来的研究方向。
Different from the two-dimensional planar structure of conventional supercapacitors ( SCs) , fiber-shaped su-percapacitors ( FSCs) have one-dimensional unique format. Therefore, FSCs not only possess high power density, fast charge-discharge, long cycle life, but also meet with the development of the emerging wearable electronics, e. g., minia-turization, integration and flexibility. In order to optimize the performance of the FSCs and promote such energy storage de-vices to practical use, many efforts have been devoted to FSCs since their advent. This paper gives a review on the status quo of the FSCs. Firstly, the basic principle of the FSCs is introduced. Secondly, the configuration of the FSCs is provid-ed, which is divided into three categories, i. e., parallel, twisted and coaxial design. Thirdly, some typical examples are described and comparison is made on the electrochemical performance, flexibility and stability. Finally, the remained problems and challenges are discussed.
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