The demand of microelectronic devices postulated high energetic flexible energy storage devices. Flexible solid state supercapacitor is flawless possible candidate to fulfill the requirement of microelectronic devices...The demand of microelectronic devices postulated high energetic flexible energy storage devices. Flexible solid state supercapacitor is flawless possible candidate to fulfill the requirement of microelectronic devices. This investigation provides practical evidence of the use of flexible solid state supercapacitors based on MnOelectrodes with polyvinylpyrrolidone(PVP)-Li ClOgel electrolyte. Initially, different acid mediated growths of MnOhave been carried. Later, the electrochemical performances of MnOelectrodes have been carried out. Impressively, the fabricated symmetric flexible solid state supercapacitor(FSS-SC) device demonstrates the highest operating potential window of 1.6 V with extended cycling stability. Moreover, the cell exhibits high energy density of 23 Wh/kg at power density of 1.9 k W/kg. It is interesting to note that the device shows excellent flexibility upon bending at angle of 180° for number of times. These results clearly evidenced those symmetric FSS-SC devices based on MnOelectrodes are promising energy storage devices for microelectronic applications.展开更多
以沸石咪唑骨架-67(ZIF-67)为前驱体,采用两步煅烧法制备了四氧化三钴/碳(Co3O4/C)纳米复合材料。利用自由基聚合法合成了Co3O4/C-聚丙烯酰胺水凝胶,进一步在水凝胶框架中原位聚合电化学活性聚吡咯颗粒,制备具有优异机械性能的柔性复合...以沸石咪唑骨架-67(ZIF-67)为前驱体,采用两步煅烧法制备了四氧化三钴/碳(Co3O4/C)纳米复合材料。利用自由基聚合法合成了Co3O4/C-聚丙烯酰胺水凝胶,进一步在水凝胶框架中原位聚合电化学活性聚吡咯颗粒,制备具有优异机械性能的柔性复合电极材料。在此基础上,将该柔性电极材料和水凝胶电解质组装成全固态柔性超级电容器;实验结果表明,Co3O4/C纳米材料与导电聚合物复合电极材料具有优异的超级电容器性能。通过恒流充放电曲线计算得到该器件具有197.83 m F/cm^2的面电容。在电化学循环10 000圈后该器件的容量仅下降9%,展示了其优异的循环稳定性;此外,该电容器具有的优异机械柔性,使其有望应用于未来柔性电子器件。展开更多
基金DAE-BRNS, BARC Mumbai, India for financial support through research Project no.2012/34/67/BRNS/2911 dtd. 07/03/2013
文摘The demand of microelectronic devices postulated high energetic flexible energy storage devices. Flexible solid state supercapacitor is flawless possible candidate to fulfill the requirement of microelectronic devices. This investigation provides practical evidence of the use of flexible solid state supercapacitors based on MnOelectrodes with polyvinylpyrrolidone(PVP)-Li ClOgel electrolyte. Initially, different acid mediated growths of MnOhave been carried. Later, the electrochemical performances of MnOelectrodes have been carried out. Impressively, the fabricated symmetric flexible solid state supercapacitor(FSS-SC) device demonstrates the highest operating potential window of 1.6 V with extended cycling stability. Moreover, the cell exhibits high energy density of 23 Wh/kg at power density of 1.9 k W/kg. It is interesting to note that the device shows excellent flexibility upon bending at angle of 180° for number of times. These results clearly evidenced those symmetric FSS-SC devices based on MnOelectrodes are promising energy storage devices for microelectronic applications.
文摘以沸石咪唑骨架-67(ZIF-67)为前驱体,采用两步煅烧法制备了四氧化三钴/碳(Co3O4/C)纳米复合材料。利用自由基聚合法合成了Co3O4/C-聚丙烯酰胺水凝胶,进一步在水凝胶框架中原位聚合电化学活性聚吡咯颗粒,制备具有优异机械性能的柔性复合电极材料。在此基础上,将该柔性电极材料和水凝胶电解质组装成全固态柔性超级电容器;实验结果表明,Co3O4/C纳米材料与导电聚合物复合电极材料具有优异的超级电容器性能。通过恒流充放电曲线计算得到该器件具有197.83 m F/cm^2的面电容。在电化学循环10 000圈后该器件的容量仅下降9%,展示了其优异的循环稳定性;此外,该电容器具有的优异机械柔性,使其有望应用于未来柔性电子器件。
