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导电高分子电极材料由于其自身稳定性差和迟滞的电化学反应效应等缺点限制了其实际应用.构建三维金属基@导电高分子复合电极材料是一条行之有效的解决导电高分子固有缺陷问题的途径.本文以二氧化锰为氧化剂协同电化学聚合的方法合成了三维镍@聚苯胺核/壳复合材料电极.经过理性设计和可控制备,该电极材料有效地提高了全方位的储能性能,其独特三维鸟巢状和高导电性的金属骨架结构有助于电解质离子和电子在电极表面的高速传输.此外,利用三维镍@聚苯胺与前期工作已合成的三维镍@二氧化锰@聚吡咯分别作为正负极,一种高度匹配的不对称超级电容器也被顺利组装.经测试研究表明,这种不对称超级电容器具有良好的储能性能,工作电压能拓宽至1.3 V,最大能量密度和功率密度也能分别达到23.3 Wh·kg-1和5 870.8 W·kg-1.
Due to its poor stability and delayed electrochemical reaction, the conductive polymer electrode material limits its practical application.Construction of three-dimensional metal-based @ conductive polymer composite electrode material is an effective solution to the inherent defects of conductive polymers Way.In this paper, a three-dimensional nickel @ polyaniline core / shell composite electrode was synthesized by the electrochemical polymerization of manganese dioxide as an oxidant.After rational design and controlled preparation, the electrode material effectively enhanced the energy storage performance in all directions , Its unique three-dimensional nest-shaped and highly conductive metal skeleton structure contribute to the high-speed transmission of electrolyte ions and electrons on the electrode surface.In addition, the use of three-dimensional nickel @ polyaniline and the previous work has been synthesized three-dimensional nickel @ manganese dioxide @ poly Pyrrole as the positive and negative, respectively, a highly matched asymmetric supercapacitor has also been successfully assembled.Test studies have shown that this asymmetric supercapacitor has good energy storage performance, the operating voltage can be widened to 1.3 V, the maximum energy density And the power density can reach 23.3 Wh · kg-1 and 5870.8 W · kg-1, respectively.