Simultaneous optimization of surface chemistry and pore morphology of 3D graphene-sulfur cathode via multi-ion modulation
文献类型：期刊论文
| 作者 | Wang, J; Cheng, S; Li, WF(李宛飞); Zhang, S; Li, HF; Zheng, ZZ(郑召召); Li, FJ; Shi, LY; Lin, HZ(蔺洪振); Zhang, YG(张跃钢) |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2016 |
| 卷号 | 321 |
| 通讯作者 | Li, WF(李宛飞) ; Lin, HZ(蔺洪振) ; Zhang, YG(张跃钢) |
| 英文摘要 | Lithium/sulfur (Li/S) battery is a promising next-generation energy storage system owing to its high theoretical energy density. However, for practical use there remains some key problems to be solved, such as low active material utilization and rapid capacity fading, especially at high areal sulfur loadings. Here, we report a facile one-pot method to prepare porous three-dimensional nitrogen, sulfur-codoped graphene through hydrothermal reduction of graphene oxide with multi-ion mixture modulation. We show solid evidence that the results of multi-ion mixture modulation can not only improve the surface affinity of the nanocarbons to polysulfides, but also alter their assembling manner and render the resultant 3D network a more favorable pore morphology for accommodating and confining sulfur. It also had an excellent rate performance and cycling stability, showing an initial capacity of 1304 mA h g(-1) at 0.05C, 613 mA h g(-1) at 5C and maintaining a reversible capacity of 462 mA h g(-1) after 1500 cycles at 2C with capacity fading as low as 0.028% per cycle. Moreover, a high areal capacity of 5.1 mA h cm(-2) at 0.2C is achieved at an areal sulfur loading of 6.3 mg cm(-2), which are the best values reported so far for dual doped sulfur cathodes. (C) 2016 Elsevier B.V. All rights reserved. |
| 关键词[WOS] | OXYGEN REDUCTION REACTION ; LITHIUM/SULFUR CELLS ; HIGH-ENERGY ; SIZE DISTRIBUTION ; BATTERY CATHODE ; DOPED GRAPHENE ; LONG-LIFE ; NITROGEN ; PERFORMANCE ; OXIDE |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000377729200021 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/4683]  |
| 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 | Wang, J,Cheng, S,Li, WF,et al. Simultaneous optimization of surface chemistry and pore morphology of 3D graphene-sulfur cathode via multi-ion modulation[J]. JOURNAL OF POWER SOURCES,2016,321. |
| APA | Wang, J.,Cheng, S.,Li, WF.,Zhang, S.,Li, HF.,...&Zhang, YG.(2016).Simultaneous optimization of surface chemistry and pore morphology of 3D graphene-sulfur cathode via multi-ion modulation.JOURNAL OF POWER SOURCES,321. |
| MLA | Wang, J,et al."Simultaneous optimization of surface chemistry and pore morphology of 3D graphene-sulfur cathode via multi-ion modulation".JOURNAL OF POWER SOURCES 321(2016). |
入库方式： OAI收割
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。