A rGO-CNT aerogel covalently bonded with a nitrogen-rich polymer as a polysulfide adsorptive cathode for high sulfur loading lithium sulfur batteries
文献类型：期刊论文
| 作者 | Hong, Xiaoheng1,2; Jin, Jun1; Wu, Tian1,2; Lu, Yang1,2; Zhang, Sanpei1,2; Chen, Chunhua4; Wen, Zhaoyin1,2,3 |
| 刊名 | Journal of Materials Chemistry A
 |
| 出版日期 | 2017 |
| 卷号 | 5期号:28页码:14775-14782 |
| ISSN号 | 20507488 |
| DOI | 10.1039/c7ta03552g |
| 英文摘要 | The development of high capacity lithium-sulfur (Li-S) batteries is hampered by both the shuttle effect of polysulfides and low sulfur areal loading problems. To inhibit the shuttle effect, a polysulfide adsorptive polymer polyethylenimine (PEI) is covalently bonded with reduced graphene oxide (rGO) in a one-step hydrothermal reaction. Meanwhile, multi-walled carbon nanotubes (MWCNTs) are simultaneously interweaved with rGO. The resultant PEI-rGO-MWCNT aerogel (PEI-GC) provides ample chemisorption domains of amine groups and abundant electrical contact sites. Density functional theory (DFT) calculations prove a binding energy of 2.43 eV between PEI and polysulfide. The PEI-GC cell achieved a high capacity of 933 mA h g-1for the 500th cycle at 1C, stable rate performance up to 10C, and low self-discharge rate. The covalent bond between PEI and rGO experiences no degradation during the 500 cycles. Moreover, PEI-GC achieved excellent cycling performance at a high sulfur loading of up to 18 mg cm-2. © 2017 The Royal Society of Chemistry. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25732]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai; 200050, China; 2.Graduate School of Chinese Academy of Sciences, Beijing; 100039, China; 3.Shanghaitech University, Shanghai; 200031, China; 4.University of Science and Technology of China, Hefei; 230026, China |
| 推荐引用方式 GB/T 7714 | Hong, Xiaoheng,Jin, Jun,Wu, Tian,et al. A rGO-CNT aerogel covalently bonded with a nitrogen-rich polymer as a polysulfide adsorptive cathode for high sulfur loading lithium sulfur batteries[J]. Journal of Materials Chemistry A,2017,5(28):14775-14782. |
| APA | Hong, Xiaoheng.,Jin, Jun.,Wu, Tian.,Lu, Yang.,Zhang, Sanpei.,...&Wen, Zhaoyin.(2017).A rGO-CNT aerogel covalently bonded with a nitrogen-rich polymer as a polysulfide adsorptive cathode for high sulfur loading lithium sulfur batteries.Journal of Materials Chemistry A,5(28),14775-14782. |
| MLA | Hong, Xiaoheng,et al."A rGO-CNT aerogel covalently bonded with a nitrogen-rich polymer as a polysulfide adsorptive cathode for high sulfur loading lithium sulfur batteries".Journal of Materials Chemistry A 5.28(2017):14775-14782. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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