Reduced graphene oxide/polypyrrole nanotube papers for flexible all-solid-state supercapacitors with excellent rate capability and high energy density

 

In this work, we fabricated rGO/PPy nanotube (NT) papers for flexible all-solid-state supercapacitor (ASSSCyangchao_lunwen) electrodes. The incorporation of rGO nanosheets could improve the cycling stability of PPy NT paper electrode, without sacrificing the pseudocapacitance. The hybrid paper could be used as excellent electrode materials for ASSSC devices without using other binders or conducting additives. The assembled ASSSC had a large areal and volumetric specific capacitance, high rate capability, excellent capacitance stability under different bending states as well as cycling stability, small leakage current and low self-discharge characteristics. In addition, it showed a high areal energy density of 61.4 μWh/cm2 at 10 mW/cm2 and a large volumetric energy density of 7.18 mWh/cm3 at 1.17 W/cm3. Based on the high energy density with excellent rate capability, this flexible ASSSC holds great potential for high-performance energy storages.

 

Chao Yang, Liling Zhang, Nantao Hu*, Zhi Yang, Hao Wei, Yafei Zhang*. Reduced graphene oxide/polypyrrole nanotube papers for flexible all-solid-state supercapacitors with excellent rate capability and high energy density, Journal of Power Sources, 2016, 302: 39-45. (IF=6.333)

 

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