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首页> 外文期刊>Journal of Applied Polymer Science >Polyanilines from spent battery powder and activated carbon: Electrodes for asymmetric supercapacitor cell
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Polyanilines from spent battery powder and activated carbon: Electrodes for asymmetric supercapacitor cell

机译：Polyanilines from spent battery powder and activated carbon: Electrodes for asymmetric supercapacitor cell

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This work aims to use the electro-active materials for energy storage application from the waste raw material source, readily and indigenously available materials. Nowadays, the use of waste sources to prepare electro-active materials for energy storage applications is trending due to their low-cost, high availability, reduced environmental problems, and so forth. In this direction, Polyaniline (PANI) is prepared using a MnO2 oxidant collected from waste Zn-C cells. PANI displayed a compact and interconnected granular morphology with a surface area (39 m(2) g(-1)), pore volume (0.19 cm(3) g(-1)), and pore diameter (2.2 nm). Activated carbon (AC) has a surface area (860 m(2) g(-1)), pore volume (199 cm(3) g(-1)), and pore diameter (1.2 nm) is purchased locally. FT-IR, XRD, and EDAX spectra support the formation of polyaniline salt with a small amount of Mn and Zn. The asymmetric cell is constructed using a PANI as a positive electrode and carbon as negative electrode material. The cell (PANI//AC) shows a high specific capacitance of 157 F g(-1) at a current density of 5 mA cm(-2). The cell offers a cycle life stability of 5000 cycles with a coulombic efficiency of 93% at a current density of 10 mA cm(-2).

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