An advanced integrated electrode with micron- and nano-scale structures for vanadium redox flow battery
文献类型：期刊论文
| 作者 | Xu, Zeyu2,3; Xiao, Wei2; Zhang, Kaiyue2,3; Zhang, Denghua2,3; Wei, Hao2; Zhang, Xihao2,3; Zhang, Zhongyu1,2; Pu, Nianwen1,2; Liu, Jianguo2; Yan, Chuanwei2 |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2020-02-29 |
| 卷号 | 450页码:10 |
| 关键词 | Vanadium redox flow battery Multi-scale integrated structures Polarization Electrocatalytic activity Conductivity Hydrophilicity |
| ISSN号 | 0378-7753 |
| DOI | 10.1016/j.jpowsour.2019.227686 |
| 通讯作者 | Liu, Jianguo(jgliu@imr.ac.cn) |
| 英文摘要 | Improving battery performance and cycle life is an effective way to increase the share of vanadium redox flow batteries (VRFBs) in the energy storage market. Here, an advanced integrated electrode with micron- and nanoscale structures is fabricated through multi-step electrospinning and post-functionalization processes. For micron-scale structure, the reaction region and the electron transport region are constructed to optimize activation areas and electron conduction process. For nano-scale structure, the catalytic layer with oxygen-rich gradient nanopores and the conductive layer with electron transport channels are generated to enhance electrocatalytic and conductive performances without sacrificing mass transport. The VRFB with the as-prepared electrodes achieves an outstanding performance with 80.28% energy efficiency at 250 mA cm(-2) and is stably cycled for more than 1000 cycles. Besides, it delivers a high peak power density of 702.98 mW cm(-2), which is 69.45% higher than that of the battery with conventional graphite felts. More importantly, the rationality of structure design is verified, and different application ways of the as-prepared electrodes are compared. This work provides an inspiration in structural design for the development of high performance electrodes for VRFBs. |
| 资助项目 | National Natural Science Foundation of China[21573257] ; National Natural Science Foundation of China[21676282] ; Shenyang Key R&D and Technology Transfer Program[Z17-7-026] ; Natural Science Foundation of Liaoning[20180510039] ; Shenyang Science and Technology Project[18013051] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000517663800056 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Shenyang Key R&D and Technology Transfer Program ; Natural Science Foundation of Liaoning ; Shenyang Science and Technology Project |
| 源URL | [http://ir.imr.ac.cn/handle/321006/137455]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Jianguo |
| 作者单位 | 1.Sichuan Xingming Energy & Environm Protect Techno, Chengdu 610106, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Zeyu,Xiao, Wei,Zhang, Kaiyue,et al. An advanced integrated electrode with micron- and nano-scale structures for vanadium redox flow battery[J]. JOURNAL OF POWER SOURCES,2020,450:10. |
| APA | Xu, Zeyu.,Xiao, Wei.,Zhang, Kaiyue.,Zhang, Denghua.,Wei, Hao.,...&Yan, Chuanwei.(2020).An advanced integrated electrode with micron- and nano-scale structures for vanadium redox flow battery.JOURNAL OF POWER SOURCES,450,10. |
| MLA | Xu, Zeyu,et al."An advanced integrated electrode with micron- and nano-scale structures for vanadium redox flow battery".JOURNAL OF POWER SOURCES 450(2020):10. |
入库方式： OAI收割
来源：金属研究所
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