High-capacity and fast Na-ion diffusion rate three-dimensional MoS2/SnS2-RGO anode for advanced sodium-ion batteries and sodium-ion capacitors | |
Liu, Jian1; Xu, Ying-Ge1; Kong, Ling-Bin1,2 | |
刊名 | Solid State Ionics |
2020-11-01 | |
卷号 | 355 |
关键词 | Anodes Cathodes Diffusion Electrochromism Energy storage Graphene Layered semiconductors Metal ions Molybdenum compounds Reaction kinetics Sodium compounds Storage (materials) Tin compounds Charge storage capacity Discharge capacities Electrode kinetics Hydrothermal methods Ion diffusion coefficient Ion-diffusion rate Rate capabilities Reversible capacity |
ISSN号 | 01672738 |
DOI | 10.1016/j.ssi.2020.115416 |
英文摘要 | Sodium-ion batteries (SIBs) and Sodium-ion capacitors (SICs) have great promise for large-scale energy storage. However, the mismatch of electrode kinetics and charge-storage capacity between anode and cathode materials remains a challenge. Here three-dimensional self-assembled MoS2/SnS2-reduced graphene oxide (MoS2/SnS2-RGO) anode material with fast Na-ion diffusion rate and pseudocapacitive charge storage has been successfully prepared via a facile hydrothermal method. With this particular structure, the Na-ion diffusion coefficient of MoS2/SnS2-RGO calculated by GITT achieves 5.53 × 10−7 cm2 s−1 during the desodiation process, which effectively improves the reaction kinetics for anode material. When tested against metal sodium in the potential window of 0.01–3.00 V, the optimized MoS2/SnS2-RGO delivers an excellent reversible capacity of 818.9 mA h g−1 at a specific current of 100 mA g−1 after 100 cycles and a superior rate capability of 555.4 mA h g−1 at 2000 mA g−1 over 500 cycles. So far, MoS2/SnS2-RGO possesses the highest reversible capacity among the reported anode materials. Furthermore, a SIC composed of optimized MoS2/SnS2-RGO anode and a CC cathode reaches a high specific energy of 113.9 W h kg−1 at specific power of 561.25 W kg−1. Similarly, a SIB consisted of the MoS2/SnS2-RGO anode and a Na3V2(PO4)3/C cathode displays the reversible discharge capacity of 56 mA h g−1 at the high rates of 2 C. © 2020 Elsevier B.V. |
WOS研究方向 | Chemistry ; Physics |
语种 | 英语 |
出版者 | Elsevier B.V. |
WOS记录号 | WOS:000576050300005 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/115049] |
专题 | 石油化工学院 材料科学与工程学院 |
作者单位 | 1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China |
推荐引用方式 GB/T 7714 | Liu, Jian,Xu, Ying-Ge,Kong, Ling-Bin. High-capacity and fast Na-ion diffusion rate three-dimensional MoS2/SnS2-RGO anode for advanced sodium-ion batteries and sodium-ion capacitors[J]. Solid State Ionics,2020,355. |
APA | Liu, Jian,Xu, Ying-Ge,&Kong, Ling-Bin.(2020).High-capacity and fast Na-ion diffusion rate three-dimensional MoS2/SnS2-RGO anode for advanced sodium-ion batteries and sodium-ion capacitors.Solid State Ionics,355. |
MLA | Liu, Jian,et al."High-capacity and fast Na-ion diffusion rate three-dimensional MoS2/SnS2-RGO anode for advanced sodium-ion batteries and sodium-ion capacitors".Solid State Ionics 355(2020). |
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