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Chemcial Industry and Engineering 2022, Vol. 39 Issue (4) :83-93    DOI: 10.13353/j.issn.1004.9533.20210352
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Development strategy of high energy density aqueous organic flow battery
XIAO Wentao, HUANG Chengde
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China

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Abstract The aqueous organic flow battery has been developed rapidly since its appearance in 2014, especially in recent years, after the degradation and dimerization of organic electroactive substances have been initially solved, and this type of redox flow battery is expected to be a candidate for large-scale energy storage systems. However, the problem of low energy density limits its commercialization process. This article mainly introduces in detail the five method of increasing the energy density of aqueous organic redox flow batteries, such as tailoring the molecular structure, the application of "interaction-mediating" strategy, the use of polymer electroactive materials, the application of redox-targeting reactions and modification of the electrode surface from three aspects: increasing solubility, expanding electrochemical window and increasing the number of electron transfers. At the same time, the strategy to further increase the energy density of aqueous organic redox flow batteries is briefly prospected.
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XIAO Wentao
HUANG Chengde
Keywordsaqueous organic redox flow batteries   energy density   tailoring of molecular structure   "interaction-mediating"   strategy   polymer electroactive materials   redox-targeting reactions     
Received 2021-04-21;
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XIAO Wentao, HUANG Chengde.Development strategy of high energy density aqueous organic flow battery[J]  Chemcial Industry and Engineering, 2022,V39(4): 83-93
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