Inorganic Chemicals Industry ›› 2025, Vol. 57 ›› Issue (4): 11-21.doi: 10.19964/j.issn.1006-4990.2024-0219

• Reviews and Special Topics • Previous Articles     Next Articles

Research progress of supercapacitors based on surface modified graphite felt composite materials

WANG Zhiyu1(), SONG Kun1, SHEN Miao2, SHEN Ping2, XIAO Peiyao1, YANG Chunming3()   

  1. 1. School of Medicine,Hunan Normal University,Changsha 410205,China
    2. Hunan Chemical Vocational Technology;College,ZhuZhou 412000,China
    3. College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410006,China
  • Received:2024-04-19 Online:2025-04-10 Published:2024-08-01
  • Contact: YANG Chunming E-mail:252810658@qq.com;chunmingyang@126.com

Abstract:

As a traditional electrode material,graphite felt(GF) has a unique three-dimensional porous structure and good electrical conductivity,however,it has inherent defects such as poor surface wettability and insufficient electrochemical activity.To address these problems,the researchers focused on the activation of the graphite felt substrate by introducing specific functional groups or nanostructures using physical,chemical and electrochemical methods in order to develop composite electrode materials with superior properties for applications in the field of efficient energy storage.Based on the introduction of graphite felt characteristics and energy storage mechanism,the modification advantages of transition metal compounds,conducting polymers and carbonaceous materials on GF substrates,and doping with heteroatoms(O,S,N,etc.) to regulate the surface wettability,conductivity and electrocatalytic activity of GF were reviewed.Furthermore,the application prospect of GF composite materials in wearable devices and lightweight energy storage devices was highlighted.Meanwhile,it was also pointed out the challenges of GF composites in the precise regulation of the preparation process.In the future,with the continuous development of material science,surface treatment technology and electrochemical theory,GF surface modification was expected to emerge more innovative technologies and provide theoretical support for the commercial application of supercapacitors.

Key words: graphite felts, surface modification, supercapacitors, carbon materials

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