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首页> 外文期刊>Materials Science and Engineering >Langmuir-Blodgett deposited Na_3V_2(PO_4)_3-MnO_2 nanocomposite thin film electrodes for hybrid energy storage application
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Langmuir-Blodgett deposited Na_3V_2(PO_4)_3-MnO_2 nanocomposite thin film electrodes for hybrid energy storage application

机译:Langmuir-Blodgett沉积NA_3V_2(PO_4)_3-MNO_2纳米复合薄膜电极用于混合能量存储应用

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摘要

This article deals with the Langmuir-Blodgett deposition of NASICON type Na_3V_2(PO_4)_3 (NVP) -MnO_2 nano-composite thin-film for the hybrid energy storage application. The nanocomposite electrode with various NVP∶MnO_2 ratio was developed and their physiochemical properties were examined with advanced characterisation techniques. The aqueous half-cell was made using the developed nanocomposite electrodes, to study their energy storing behaviour by CV and GCD analysis. In comparison, the 3∶1 ratio of NVP-MnO2 (NM3) exhibits a higher specific capacity with good cyclic stability and rate capability. The higher MnO_2 concentration leads to the dominance of pseudo capacitance behaviour over the battery like reaction, resulted in the variation of energy density and power density between 39 and 18 Wh/Kg and 3479-4450 W/Kg.
机译:本文涉及用于混合能储能施用的NASICON型NA_3V_2(PO_4)_3(NVP)-MNO_2纳米复合薄膜的Langmuir-Blodgett沉积。 开发了具有各种NVP:MNO_2比的纳米复合电极,并通过先进的表征技术检查它们的物理化学性质。 使用开发的纳米复合电极制成水半电池,以研究其通过CV和GCD分析的能量储存行为。 相比之下,NVP-MNO2(NM3)的3:1比率具有较高的循环稳定性和速率能力的具体容量。 较高的MnO_2浓度导致伪电容行为在电池上的伪电容行为的优势,导致能量密度和功率密度的变化在39和18WH / kg和3479-4450W / kg之间。

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