Graphene/polyaniline@carbon cloth composite as a high-performance flexible supercapacitor electrode prepared by a one-step electrochemical co-deposition method
Graphene/polyaniline@carbon cloth composite as a high-performance flexible supercapacitor electrode prepared by a one-step electrochemical co-deposition method
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一步电化学共沉积法制备石墨烯/聚苯胺@碳布复合材料作为高性能柔性超级电容器电极
DOI：
10.1039/c6ra27545a
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发表时间：
2017-01
期刊：
影响因子：
3.9
通讯作者：
Xu Yuxi
中科院分区：
文献类型：
--
作者：
Wen Lele;Li Ke;Liu Jingjing;Huang Yanshan;Bu Fanxing;Zhao Bin;Xu Yuxi
可穿戴和便携式产品需要越来越多的柔性通用储能设备。能量存储装置的典型代表是超级电容器。然而，由于其低导电性，其应用受到很大限制，这强烈地受到粘合剂的影响。采用电化学共沉积法制备了石墨烯-聚苯胺@碳布复合材料，并以此为基础制备了一种柔性无粘结剂超级电容器。该复合材料表现出优异的电化学性能，在0.5 A g-1的电流密度下具有793 F g-1的高比电容和良好的循环稳定性（10000次循环后初始比电容保持率为81%）。 该柔性对称装置还显示出在0.5 A g−1的电流密度下512 F g−1的令人满意的比电容、理想的循环稳定性（在10000次循环中保持85%的比电容）和在199.80 W kg−1的功率密度下11.38 W h kg − 1的相当大的能量密度。 我们相信，这种具有优异电化学性能的柔性和无粘合剂超级电容器将满足卷式显示器，电子纸和可穿戴电子产品的需求。
Increasing numbers of flexible universal energy storage devices are required for wearable and portable products. A typical representation of energy storage devices are supercapacitors. However, their applications are greatly limited due to their low conductivity, which is strongly restricted by the effect of the binder. We designed and prepared a flexible and binder-free supercapacitor based on a graphene–polyaniline@carbon cloth composite by a one-step electrochemical co-deposition process. The composite exhibited excellent electrochemical performance with a high specific capacitance of 793 F g−1 at a current density of 0.5 A g−1 and favorable cycle stability (retention of 81% of initial specific capacitance after 10 000 cycles). The flexible symmetric device also showed satisfactory specific capacitance of 512 F g−1 at a current density of 0.5 A g−1, desirable cycling stability (retention of 85% specific capacitance over 10 000 cycles) and considerable energy density of 11.38 W h kg−1 at a power density of 199.80 W kg−1. We believe that this flexible and binder-free supercapacitor with excellent electrochemical properties will meet the demands in roll-up displays, electronic paper and wearable electronic products.
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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通讯作者：
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影响因子：
6.6
作者：
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通讯作者：
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