Easy fabrication of flexible and multilayer nanocarbon-based cathodes with a high unreal sulfur loading by electrostatic spraying for lithium-sulfur batteries
文献类型：期刊论文
| 作者 | Shi, HF; Niu, SZ; Lv, W; Zhou, GM; Zhang, C5; Sun, ZH; Li, F6; Kang, FY; Yang, QH |
| 刊名 | CARBON
 |
| 出版日期 | 2018-11-01 |
| 卷号 | 138页码:18-25 |
| ISSN号 | 0008-6223 |
| 关键词 | Lithium-sulfur batteries Electrostatic spray deposition Flexible electrode Layer-by-layer structure High loading |
| DOI | 10.1016/j.carbon.2018.05.077 |
| 英文摘要 | A high areal sulfur loading in a carbon-based cathode together with a high cell capacity is key to the design of lithium-sulfur batteries guaranteeing a superior energy density for use. However, a high sulfur loading produced using traditional blade coating techniques results in many technical issues such as sluggish electron/ion transport kinetics and cracking of the electrodes. Here a well designed two-step electrostatic spray deposition (ESD) technique is proposed to prepare a flexible, multilayer carbon electrode with a high sulfur areal loading, in which different carbon components by a careful selection are used for different functions in each layer. The unique "aerosol deposition" in the ESD creates buffer voids in the electrode, ensuring fast infiltration of the electrolyte and releasing the internal stress of the electrode thus avoiding the cracking of thick electrodes. With such an integrated design, the as-prepared cathode exhibits excellent flexibility, a long cyclic stability with a low capacity decay of 0.064% per cycle at 1 C for 500 cycles and a high rate capability of 736 mAh g(-1) at 2 C. Moreover, a high areal sulfur loading of 9.4 mg cm(-2) with an areal capacity of 6.2 mAh cm(-2) at 0.1 C has been achieved. (C) 2018 Elsevier Ltd. All rights reserved. |
| 学科主题 | Chemistry, Physical ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000442635300003 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79872]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.Tsinghua Univ, Engn Lab Functionalized Carbon Mat, Shenzhen Key Lab Graphene Based Mat, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China 2.Tsinghua Univ, Sch Mat Sci & Engn, Lab Adv Mat, Beijing 100084, Peoples R China 3.Tsinghua Univ, TBSI, Shenzhen 518055, Peoples R China 4.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 5.Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA 6.Tianjin Univ, Sch Marine Sci & Technol, Tianjin 300072, Peoples R China 7.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, HF,Niu, SZ,Lv, W,et al. Easy fabrication of flexible and multilayer nanocarbon-based cathodes with a high unreal sulfur loading by electrostatic spraying for lithium-sulfur batteries[J]. CARBON,2018,138:18-25. |
| APA | Shi, HF.,Niu, SZ.,Lv, W.,Zhou, GM.,Zhang, C.,...&Yang, QH.(2018).Easy fabrication of flexible and multilayer nanocarbon-based cathodes with a high unreal sulfur loading by electrostatic spraying for lithium-sulfur batteries.CARBON,138,18-25. |
| MLA | Shi, HF,et al."Easy fabrication of flexible and multilayer nanocarbon-based cathodes with a high unreal sulfur loading by electrostatic spraying for lithium-sulfur batteries".CARBON 138(2018):18-25. |
入库方式： OAI收割
来源：金属研究所
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