【摘 要】
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Supercapacitors,with ultrahigh power density,superior rate capability,long-term cyclability,and exceptional safety,are regarded as one highly competitive candidate of electrochemical energy storage devices,filling the gap between batteries and conventiona
【机 构】
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Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy o
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Supercapacitors,with ultrahigh power density,superior rate capability,long-term cyclability,and exceptional safety,are regarded as one highly competitive candidate of electrochemical energy storage devices,filling the gap between batteries and conventional capacitors.Despite of tremendous effort,elaborated screening of high-performance electrode materials,e.g.,graphene,is still intensively required.In this review,we describe the most recent progress in the research and development of graphene-based materials for high-performance and new-concept supercapacitors for the targeted applications in next-generation and smart electronics.First,the design and fabrication of high-performance supercapacitors,including electrical double layer capacitors,pseudocapacitors and hybrid supercapacitors,were summarized in term of the charge storage mechanism.Second,new-concept supercapacitors with multiple functionalities of high-voltage,fiber-shape,microscale and shape-diversity in order to fulfill the requirements of future electronics are reviewed.Accordingly,special emphasis is given to the structure-dependent-performance effects of pores,hybridization,dimensionalities of graphene-based materials on performance of supercapacitors,and tremendous potential of graphene-based planar micro-supercapacitors for the direct seamlessly integration with versatile micro-electronics.Finally,perspectives and challenges of graphene-based supercapacitors are briefly discussed.
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