用于高性能固态非对称超级电容器的聚吡咯@MnO₂复合电极的分级纳米结构
Hierarchical nanostructures of polypyrrole@MnO2 composite electrodes for high performance solid-state asymmetric supercapacitors.
作者信息
Tao Jiayou, Liu Nishuang, Li Luying, Su Jun, Gao Yihua
机构信息
Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO)-School of Physics, Huazhong University of Science and Technology (HUST), LuoyuRoad 1037, Wuhan 430074, P.R. China.
出版信息
Nanoscale. 2014 Mar 7;6(5):2922-8. doi: 10.1039/c3nr05845j. Epub 2014 Jan 30.
A solid-state high performance flexible asymmetric supercapacitor (ASC) was fabricated. Its anode is based on organic-inorganic materials, where polypyrrole (PPy) is uniformly wrapped on MnO2 nanoflowers grown on carbon cloth (CC), and its cathode is made of activated carbon (AC) on CC. The ASC has an areal capacitance of 1.41 F cm(-2) and an energy density of 0.63 mW h cm(-2) at a power density of 0.9 mW cm(-2). An energy storage unit fabricated using multiple ASCs can drive a light-emitting diode (LED) segment display, a mini motor and even a toy car after full charging. The high-performance ASCs have significant potential applications in flexible electronics and electrical vehicles.
制备了一种固态高性能柔性不对称超级电容器（ASC）。其阳极基于有机-无机材料，其中聚吡咯（PPy）均匀包裹在生长于碳布（CC）上的MnO₂纳米花上，其阴极由CC上的活性炭（AC）制成。该ASC在功率密度为0.9 mW cm⁻²时的面积电容为1.41 F cm⁻²，能量密度为0.63 mW h cm⁻²。使用多个ASC制造的储能单元在充满电后可以驱动发光二极管（LED）段式显示器、微型电机甚至玩具汽车。高性能ASC在柔性电子和电动汽车领域具有重要的潜在应用。
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