All-Solid-State High-Energy Asymmetric Supercapacitors Enabled by Three-Dimensional Mixed-Valent MnOx Nanospike and Graphene Electrodes
文献类型：期刊论文
| 作者 | Yang, J(杨劼); Li, GZ(李桂珠); Pan, ZH; Liu, MN(刘美男); Hou, Y(侯远); Xu, YJ; Deng, H; Sheng, LM; Zhao, XL; Qiu, YC(丘勇才) |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2015 |
| 卷号 | 7期号:40页码:9 |
| 关键词 | all-solid-state asymmetric supercapacitors three-dimensional MnOx nanospike chemically converted graphene |
| 通讯作者 | Zhao, XL |
| 英文摘要 | Three-dimensional (3D) nanostructures enable high-energy storage devices. Here we report a 3D manganese oxide nanospike (NSP) array electrode fabricated by anodization and subsequent electrodeposition. All-solid-state asymmetric supercapacitors were assembled with the 3D Al@Ni@MnOx NSP as the positive electrode, chemically converted graphene (CCG) as the negative electrode, and Na2SO4/poly(vinyl alcohol) (PVA) as the polymer gel electrolyte. Taking advantage of the different potential windows of Al@Ni@MnOx NSP and CCG electrodes, the asymmetric supercapacitor showed an ideal capacitive behavior with a cell voltage up to 1.8 V, capable of lighting up a red LED indicator (nominal voltage of 1.8 V). The device could deliver an energy density of 23.02 W h kg(-1) at a current density of 1 A g(-1). It could also preserve 96.3% of its initial capacitance at a current density of 2 A g(-1) after 10000 charging/discharging cycles. The remarkable performance is attributed to the unique 3D NSP array structure that could play an important role in increasing the effective electrode surface area, facilitating electrolyte permeation, and shortening the electron pathway in the active materials. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/3291]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米研究国际实验室_张跃钢团队 |
| 推荐引用方式 GB/T 7714 | Yang, J,Li, GZ,Pan, ZH,et al. All-Solid-State High-Energy Asymmetric Supercapacitors Enabled by Three-Dimensional Mixed-Valent MnOx Nanospike and Graphene Electrodes[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(40):9. |
| APA | Yang, J.,Li, GZ.,Pan, ZH.,Liu, MN.,Hou, Y.,...&Zhang, YG.(2015).All-Solid-State High-Energy Asymmetric Supercapacitors Enabled by Three-Dimensional Mixed-Valent MnOx Nanospike and Graphene Electrodes.ACS APPLIED MATERIALS & INTERFACES,7(40),9. |
| MLA | Yang, J,et al."All-Solid-State High-Energy Asymmetric Supercapacitors Enabled by Three-Dimensional Mixed-Valent MnOx Nanospike and Graphene Electrodes".ACS APPLIED MATERIALS & INTERFACES 7.40(2015):9. |
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