Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (12): 3808-3818.doi: 10.19799/j.cnki.2095-4239.2022.0363

• Energy Storage Materials and Devices • Previous Articles     Next Articles

Recent progress of polymer electrolytes for supercapacitors under extreme environments

Xiubo ZHANG1(), Chang YU1(), Jinhe YU1, Yingbin LIU1, Yuanyang XIE1, Jianjian WANG1, Shuqin LAN1, Jieshan QIU2()   

  1. 1.State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Energy Materials and Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
    2.College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2022-06-29 Revised:2022-10-18 Online:2022-12-05 Published:2022-12-29
  • Contact: Chang YU, Jieshan QIU E-mail:zxb15179064815@163.com;chang.yu@dlut.edu.cn;qiujs@mail.buct.edu.cn

Abstract:

Supercapacitors (SCs) have attracted considerable attention owing to their high power density, fast charge-discharge rate and long cycle life. Recently, with the development of science and technology, the applications of SCs have expanded beyond conventional fields, such as large-scale renewable power generation and distribution and rail transportation, to a new generation of precision electronic devices, high-precision military weapons and equipment, and other fields involving extreme working conditions. The extreme working conditions such as extremely high/low temperatures and high tension/compression have posed new challenges and requirements for the structure and composition of SCs. Among them, the electrolyte is a key component that affects the performance, life, and safety of the SCs. Polymer electrolytes with light weight, strong mechanical stability, high flexibility and safety, and good interfacial contact are ideal candidates for fabricating safe and flexible SCs. This article first introduces the classification, composition, and characteristics of SCs. Then, the research progresses of polymer electrolytes for SCs in extreme environments are reviewed in terms of the impact of high/low temperature, high tensile/compression, and high/low humidity. Finally, the key issues faced in the development of carbon electrodes and polymer electrolytes for SCs under extreme conditions and the future directions of development are analyzed and discussed, which may provide a new impetus to the development and practical application of the SCs.

Key words: supercapacitor, extreme conditions, polymer electrolytes

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