Diglyme-based electrolytes boosting high-rate and stable sodium-ion storage for three-dimensional VS4/Reduced graphene oxide hybrid anodes
文献类型：期刊论文
| 作者 | Zheng, Cheng; Chen, Yaowu; Xu, Xiangcheng; Lin, Qiaowei; Wang, Hongyu; Xue, Qiao; Jian, Bangquan; Guo, Zhu; Lv, Wei |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 526期号:0页码:231098 |
| 关键词 | HIGH-PERFORMANCE ANODES LONG-CYCLE LIFE MOLECULAR-DYNAMICS HIGH-CAPACITY BATTERIES COMPOSITE RANGE LAYER |
| ISSN号 | 0378-7753 |
| 英文摘要 | VS4 as a promising anode material for sodium ion batteries (SIBs), has attracted great attention due to its large interchain distance of 5.83 angstrom. However, the reported VS4 anodes always show a low capacity and unstable cycling performance. Herein, a three-dimensional (3D)-VS4/reduced graphene oxide (rGO) hybrid (denoted 3D-VS4/rGO) has been prepared, having a structure of VS4 nanorods (85.8 wt%) uniformly anchored to flexible graphene sheets to form a 3D hierarchical framework. It is interesting found that such anode shows superior electrochemical performance with excellent rate capability (700 mAh g(-1) at 5 A g(-1)) and long cyclic stability (587 mAh g(-1) over 400 cycles at 5 A g(-1) ) in 1 M NaPF6 diglyme-based electrolyte, much better than the performance in 1 M NaCF3SO3 diglyme-based electrolyte. The simulation results reveal that the different coordination shell structure of Na+ of different sodium salts in the electrolyte is the main reason for the performance differences, and a smaller solvation shell of Na+ -solvent in NaPF6 rather than that of Na -anion-solvent in NaCF3SO3 led to the fast reaction kinetics in the sodiation/desodiation process, showing the importance of electrode and electrolyte matching in improving the electrochemical performance of SIBs. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47506]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen Key Lab Graphene based Mat, Shenzhen 518055, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, 5625 Renmin St, Changchun 130022, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 10 4.Guangdong Univ Technol, Mat & Energy Sch, Guangzhou 510006, Guangdong, Peoples R China 5.Tsinghua Univ, Engn Lab Functionalized Carbon Mat, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Cheng,Chen, Yaowu,Xu, Xiangcheng,et al. Diglyme-based electrolytes boosting high-rate and stable sodium-ion storage for three-dimensional VS4/Reduced graphene oxide hybrid anodes[J]. JOURNAL OF POWER SOURCES,2022,526(0):231098. |
| APA | Zheng, Cheng.,Chen, Yaowu.,Xu, Xiangcheng.,Lin, Qiaowei.,Wang, Hongyu.,...&Lv, Wei.(2022).Diglyme-based electrolytes boosting high-rate and stable sodium-ion storage for three-dimensional VS4/Reduced graphene oxide hybrid anodes.JOURNAL OF POWER SOURCES,526(0),231098. |
| MLA | Zheng, Cheng,et al."Diglyme-based electrolytes boosting high-rate and stable sodium-ion storage for three-dimensional VS4/Reduced graphene oxide hybrid anodes".JOURNAL OF POWER SOURCES 526.0(2022):231098. |
入库方式： OAI收割
来源：生态环境研究中心
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