纤维素基水凝胶作为柔性超级电容器电解质的研究进展

Research Progress of Cellulose-based Hydrogels as Electrolytes for Flexible Supercapacitors

中文关键词:  柔性超级电容器  纤维素材料  水凝胶  电解质  新能源材料

Key Words:flexible supercapacitor  cellulose materials  hydrogel  electrolyte  new energy materials

中文摘要:

      传统超级电容器多使用液态电解质组装，然而其因过多外力而破损时，有毒且易挥发的液体电解质会发生泄露，进而引发安全隐患。为解决这一问题，需要开发柔性超级电容器，以抵抗外部力量的破坏。近年来，纤维素材料因绿色、经济和可再生的特点成为储能装置的理想材料，以纤维素基水凝胶组成的超级电容器表现出良好的物理、化学性能（如高柔韧性、优良的机械强度和导电能力）。纤维素基水凝胶在柔性超级电容器领域的应用已成为当前研究热点。本文综述了纤维素基水凝胶电解质的最新研究进展和成果，包括不同纤维素及其衍生物制备水凝胶电解质的性能与特点。最后，讨论了未来纤维素材料作为新能源材料的研究潜力和挑战。

Abstract:

      Traditional supercapacitors are mostly assembled with liquid electrolytes， but when they are damaged by too much external force， the toxic and volatile liquid electrolyte will leak， which will lead to safety risks. To meet the challenge， flexible supercapacitors need to be developed to resist the damage of external forces. In recent years， cellulosic materials have become ideal materials for energy storage devices due to their green， economic， and renewable characteristics， and supercapacitors composed of cellulosic hydrogels show good physical and chemical properties （such as high flexibility， excellent mechanical strength， and electrical conductivity）. Therefore， the application of cellulose-based hydrogels in the field of flexible supercapacitors has become a research hotspot. This paper reviews the latest progress and achievements of cellulose-based hydrogel electrolytes， including the properties and characteristics of hydrogel electrolytes prepared by different cellulose and its derivatives. Finally， the future research potential and opportunities of cellulosic materials as new energy materials are discussed.