Robust Expandable Carbon Nanotube Scaffold for Ultrahigh-Capacity Lithium-Metal Anodes
文献类型：期刊论文
| 作者 | Sun, Zhaowei1; Jin, Song1; Jin, Hongchang1; Du, Zhenzhen1; Zhu, Yanwu1; Cao, Anyuan2; Ji, Hengxing1; Wan, Li-Jun1,3,4 |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2018-08-09 |
| 卷号 | 30期号:32 |
| 关键词 | Carbon Nanotube Paper Lithium-metal Anodes Robust Structure Ultrahigh Capacity |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201800884 |
| 英文摘要 | There has been a renewed interest in using lithium (Li) metal as an anode material for rechargeable batteries owing to its high theoretical capacity of 3860 mA h g(-1). Despite extensive research, modifications to effectively inhibit Li dendrite growth still result in decreased Li loading and Li utilization. As a result, real capacities are often lower than values expected, if the total mass of the electrode is taken into consideration. Herein, a lightweight yet mechanically robust carbon nanotube (CNT) paper is demonstrated as a freestanding framework to accommodate Li metal with a Li mass fraction of 80.7 wt%. The highly conductive network made of sp2-hybridized carbon effectively inhibits formation of Li dendrites and affords a favorable coulombic efficiency of >97.5%. Moreover, the Li/CNT electrode retains practical areal and gravimetric capacities of 10 mA h cm(-2) and 2830 mA h g(-1) (vs the mass of electrode), respectively, with 90.9% Li utilization for 1000 cycles at a current density of 10 mA cm(-2). It is demonstrated that the robust and expandable nature is a distinguishing feature of the CNT paper as compared to other 3D scaffolds, and is a key factor that leads to the improved electrochemical performance of the Li/CNT anodes. |
| 语种 | 英语 |
| WOS记录号 | WOS:000440813300006 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/41904]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ji, Hengxing |
| 作者单位 | 1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, CAS Key Lab Mat Energy Convers, IChEM Collaborat Innovat Ctr Chem Energy Mat,Sch, Hefei 230026, Peoples R China 2.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 4.Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Zhaowei,Jin, Song,Jin, Hongchang,et al. Robust Expandable Carbon Nanotube Scaffold for Ultrahigh-Capacity Lithium-Metal Anodes[J]. ADVANCED MATERIALS,2018,30(32). |
| APA | Sun, Zhaowei.,Jin, Song.,Jin, Hongchang.,Du, Zhenzhen.,Zhu, Yanwu.,...&Wan, Li-Jun.(2018).Robust Expandable Carbon Nanotube Scaffold for Ultrahigh-Capacity Lithium-Metal Anodes.ADVANCED MATERIALS,30(32). |
| MLA | Sun, Zhaowei,et al."Robust Expandable Carbon Nanotube Scaffold for Ultrahigh-Capacity Lithium-Metal Anodes".ADVANCED MATERIALS 30.32(2018). |
入库方式： OAI收割
来源：化学研究所
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