摘要
Fiber supercapacitor(FSC)is a promising power source for wearable/stretchable electronics and high capacitive performance of FSCs is highly desirable for practice flexible applications.Here,we report a composite of manganese dioxide(Mn O_2)and activated carbon fibers(ACFs)with high MnO_2mass loading and microporous structure(abbreviated as Mn O_2@ACF),which is used as a fiber electrode to produce a FSC with a high capacitive performance and a good flexibility.The MnO_2@ACF composite electrode in FSCs delivers an ultrahigh specific capacitance of 410 mF/cm~2at 0.1 mA/cm~2,corresponding to a high energy density of 36μWh/cm~2and high power density of 726μW/cm~2.Such high capacitive performance and simple fabrication method indicates that the Mn O_2@ACF composite is a very promising electrode material for flexible fiber supercapacitors.
Fiber supercapacitor(FSC)is a promising power source for wearable/stretchable electronics and high capacitive performance of FSCs is highly desirable for practice flexible applications.Here,we report a composite of manganese dioxide(Mn O_2)and activated carbon fibers(ACFs)with high MnO_2mass loading and microporous structure(abbreviated as Mn O_2@ACF),which is used as a fiber electrode to produce a FSC with a high capacitive performance and a good flexibility.The MnO_2@ACF composite electrode in FSCs delivers an ultrahigh specific capacitance of 410 mF/cm~2at 0.1 mA/cm~2,corresponding to a high energy density of 36μWh/cm~2and high power density of 726μW/cm~2.Such high capacitive performance and simple fabrication method indicates that the Mn O_2@ACF composite is a very promising electrode material for flexible fiber supercapacitors.
引文
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