基于超级电容器的NiMnS/碳纤维复合电极

NiMnS/carbon fiber composite material used as electrode of supercapacitor

为了进一步提高超级电容器电极材料的比电容,同时保证其循环稳定性,采用快速电沉积法制备了NiMnS/碳纤维复合材料。在弥补碳材料比电容低的缺点的同时,进一步提高了复合材料的性能,克服了传统碳基材料的局限,所制备的复合材料具有较宽的工作电压(-0.2~0.8 V)和高的比电容(1 A/g时比电容可以达到780 F/g)。同时,NiMnS/碳纤维复合材料拥有出色的循环稳定性。在1 A/g的电流密度下循环10000次,保持率可达到89%。因此,所制备的NiMnS/碳纤维布复合电极未来在能量存储和转换方面有着较大的应用潜力。

In order to further improve the specific capacitance of the supercapacitor electrode material,while ensuring its cycle stability,the NiMnS/carbon fiber cloth composite material was prepared by the rapid electrodeposition method.While making up for the shortcomings of low specific capacitance of carbon materials,the performance of composite materials was further improved.NiMnS/carbon fiber composite(NiMnS/CF)has a wide range of operating voltage(-0.2-0.8 V)and a high specific capacitance(up to 780 F/g at 1 A/g).The addition of carbon material makes the composites have excellent cycle stability.At the current density of 1 A/g for 10000 cycles,the retention rate can reach 89%.Therefore,the prepared NiMnS/carbon fiber electrode has great potential for energy storage and conversion in the future.