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An Overview of the Applications of Graphene‐Based Materials in Supercapacitors
Author(s) -
Huang Yi,
Liang Jiajie,
Chen Yongsheng
Publication year - 2012
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201102635
Subject(s) - supercapacitor , graphene , capacitor , materials science , nanotechnology , energy storage , electrode , electrochemistry , voltage , electrical engineering , power (physics) , engineering , chemistry , physics , quantum mechanics
Due to their unique 2D structure and outstanding intrinsic physical properties, such as extraordinarily high electrical conductivity and large surface area, graphene‐based materials exhibit great potential for application in supercapacitors. In this review, the progress made so far for their applications in supercapacitors is reviewed, including electrochemical double‐layer capacitors, pseudo‐capacitors, and asymmetric supercapacitors. Compared with traditional electrode materials, graphene‐based materials show some novel characteristics and mechanisms in the process of energy storage and release. Several key issues for improving the structure of graphene‐based materials and for achieving better capacitor performance, along with the current outlook for the field, are also discussed.