A review on multi-scale structure engineering of carbon-based electrode materials towards dense energy storage for supercapacitors  

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作  者:Dongyang Wu Fei Sun Min Xie Hua Wang Wei Fan Jihui Gao Guangbo Zhao Shaoqin Liu 

机构地区:[1]School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,Heilongjiang,China [2]National Innovation Platform for Industry-Education Integration of Energy Storage Technology,Harbin 150001,Heilongjiang,China [3]Harbin Electric Science and Technology Co.,Ltd,Harbin 150080,Heilongjiang,China [4]Micro-and Nanotechnology Research Center School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150080,Heilongjiang,China

出  处:《Journal of Energy Chemistry》2025年第3期768-799,共32页能源化学(英文版)

基  金:funded by the Joint Fund for Regional Innovation and Development of National Natural Science Foundation of China(U21A20143);the National Science Fund for Excellent Young Scholars(52322607);the Excellent Youth Foundation of Heilongjiang Scientific Committee(YQ2022E028)。

摘  要:Improving the volumetric energy density of supercapacitors is essential for practical applications,which highly relies on the dense storage of ions in carbon-based electrodes.The functional units of carbon-based electrode exhibit multi-scale structural characteristics including macroscopic electrode morphologies,mesoscopic microcrystals and pores,and microscopic defects and dopants in the carbon basal plane.Therefore,the ordered combination of multi-scale structures of carbon electrode is crucial for achieving dense energy storage and high volumetric performance by leveraging the functions of various scale structu re.Considering that previous reviews have focused more on the discussion of specific scale structu re of carbon electrodes,this review takes a multi-scale perspective in which recent progresses regarding the structureperformance relationship,underlying mechanism and directional design of carbon-based multi-scale structures including carbon morphology,pore structure,carbon basal plane micro-environment and electrode technology on dense energy storage and volumetric property of supercapacitors are systematically discussed.We analyzed in detail the effects of the morphology,pore,and micro-environment of carbon electrode materials on ion dense storage,summarized the specific effects of different scale structures on volumetric property and recent research progress,and proposed the mutual influence and trade-off relationship between various scale structures.In addition,the challenges and outlooks for improving the dense storage and volumetric performance of carbon-based supercapacitors are analyzed,which can provide feasible technical reference and guidance for the design and manufacture of dense carbon-based electrode materials.

关 键 词:SUPERCAPACITORS Carbon-based electrodes Volumetric performances Multi-scale structure Dense energy storage 

分 类 号:TM53[电气工程—电器]

 

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