Abstract:

Traditional supercapacitors cannot meet the needs of wearable electronic products because of their poor flexibility and low safety. Therefore, solid-state flexible supercapacitors emerge and attract many researchers’ attention due to their unique flexibility, ductility and high security. In this paper, the research significance and the main structures of solid-state flexible supercapacitors are introduced. Besides, this paper points out that two-dimensional interdigital supercapacitors are suitable for micro-electronic devices, and one-dimensional linear ones have better flexibility and adaptability. After that, the research progress of electrodes and electrolytes for solid-state flexible supercapacitors is summarized, and the existing problems are also discussed. It is concluded that the key to further development in this field is to improve the capacity performance and cycle stability of electrodes, as well as the strength, conductivity and electrochemical stability of electrolytes.

Key words: supercapacitor, electrolyte, electrode material, solid, electrochemical, safety

摘要：

传统的超级电容器因柔性差、安全性低等问题无法满足可穿戴电子产品的需求。基于此，固态柔性超级电容器应运而生，以其独特的柔性、延展性和高安全性等特点引起了众多学者的关注。本文首先简要介绍了固态柔性超级电容器的研究意义，总结了其主要的组成结构，并指出二维叉指超级电容器适用于微型电子器件，一维线型超级电容器具有更好的柔性和适应性。然后重点概述了固态柔性超级电容器用电极材料和电解质材料的研究进展，并对其现存问题进行探讨，指出该领域进一步发展的关键技术是如何提高电极的容量性能和循环稳定性以及电解质材料的力学性能、导电性和电化学稳定窗口。

关键词: 超级电容器, 电解质, 电极材料, 固态, 电化学, 安全