Enhanced specific capacitance by a new dual redox-active electrolyte in activated carbon-based supercapacitors
文献类型：期刊论文
| 作者 | Wang, Yuan; Chang, Zheng; Qian, Meng; Zhang, Zhichao; Lin, Jie; Huang, Fuqiang |
| 刊名 | CARBON
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 143页码:300 |
| 关键词 | Electric double-layer capacitors Redox-active electrolyte FeBr3 |
| ISSN号 | 0008-6223 |
| DOI | 10.1016/j.carbon.2018.11.033 |
| 文献子类 | Article |
| 英文摘要 | Commercial electrochemical capacitors exhibit high power density and long cycle life but suffer from low energy density due to low specific capacitance of activated carbon (< 200 F g(-1)). Redox-enhanced electrochemical capacitors achieve higher specific energy by adding redox-active ingredients to the electrolyte, which provide additional faradaic pseudo-capacitance. Here, high-performance and stable aqueous redox electrochemical capacitors using a new dual-active electrolyte is developed, and the specific capacitance of activated carbon increases to 885 F g(-1) after adding 0.05M FeBr3 with no degradation over 10,000 cycles in a two-electrode cell, which is more than four-fold of the original capacitance of 204 F g(-1). In addition, PVA was introduced to the electrolyte and proved to be a useful way to increase the coulombic efficiency. Moreover, this new energy storage system delivers high specific energy of 40Wh kg(-1) in 0.5M Na2SO4 based on the mass of electrodes. (C) 2018 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Chemistry ; Materials Science |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27318]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Yuan,Chang, Zheng,Qian, Meng,et al. Enhanced specific capacitance by a new dual redox-active electrolyte in activated carbon-based supercapacitors[J]. CARBON,2019,143:300. |
| APA | Wang, Yuan,Chang, Zheng,Qian, Meng,Zhang, Zhichao,Lin, Jie,&Huang, Fuqiang.(2019).Enhanced specific capacitance by a new dual redox-active electrolyte in activated carbon-based supercapacitors.CARBON,143,300. |
| MLA | Wang, Yuan,et al."Enhanced specific capacitance by a new dual redox-active electrolyte in activated carbon-based supercapacitors".CARBON 143(2019):300. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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