In situ synthesis of SWNTs@MnO 2 /polypyrrole hybrid film as binder-free supercapacitor electrode
2014; Elsevier BV; Volume: 9; Linguagem: Inglês
10.1016/j.nanoen.2014.07.017
ISSN2211-3282
AutoresKun Liang, Taoli Gu, Zeyuan Cao, Xianzhong Tang, Wencheng Hu, Bingqing Wei,
Tópico(s)Advanced battery technologies research
ResumoIn this study, a flexible hybrid film based on single-wall carbon nanotubes (SWNTs) was fabricated. The [email protected]2/Polypyrrole (PPy) film was used as a supercapacitor electrode without binders to achieve high capacitance. The binder-free electrode with SWNT and PPy layers improved the conductivity of the electrode materials, as well as the ion diffusion rate and charge-transfer resistance, thus achieving excellent electrochemical performance compared with [email protected]2 electrodes. The specific capacity was 351 F g−1 based on the total weight of the electrodes with energy density of 39.7 Wh kg−1 and power density of 10 kW kg−1. Our study could provide a novel and facile strategy for the development of high-performance energy storage devices.
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