Highly ordered and ultra-long carbon nanotube arrays as air cathodes for high-energy-efficiency Li-oxygen batteries
文献类型：期刊论文
| 作者 | Yu, Ruimin1,2; Fan, Wugang1; Guo, Xiangxin1; Dong, Shaoming1,2 |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2016-02-29 |
| 卷号 | 306页码:402-407 |
| 关键词 | Lithium-oxygen batteries Carbon nanotube arrays Soluble catalyst High energy efficiency |
| 英文摘要 | Carbonaceous air cathodes with rational architecture are vital for the nonaqueous Li-O-2 batteries to achieve large energy density, high energy efficiency and long cycle life. In this work, we report the cathodes made of highly ordered and vertically aligned carbon nanotubes grown on permeable Ta foil substrates (VACNTs-Ta) via thermal chemical vapour deposition. The VACNTs-Ta, composed of uniform carbon nanotubes with approximately 240 pm in superficial height, has the super large surface area. Meanwhile, the oriented carbon nanotubes provide extremely outstanding passageways for Li ions and oxygen species. Electrochemistry tests of VACNTs-Ta air cathodes show enhancement in discharge capacity and cycle life compared to those made from short-range oriented and disordered carbon nano tubes. By further combining with the Lil redox mediator that is dissolved in the tetraethylene dimethyl glycol based electrolytes, the batteries exhibit more than 200 cycles at the current density of 200 mA g(-1) with a cut-off discharge capacity of 1000 mAh g(-1), and their energy efficiencies increase from 50% to 82%. The results here demonstrate the importance of cathode construction for high-energy-efficiency and long-life Li-O-2 batteries. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
| 关键词[WOS] | RECHARGEABLE LI-O-2 BATTERIES ; GROWTH-MECHANISM ; LITHIUM ; ELECTRODES ; CATALYST ; GRAPHENE ; CELLS ; PERFORMANCE ; OXIDATION ; REDUCTION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000370309300049 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23199]  |
| 专题 | 上海硅酸盐研究所_结构陶瓷与复合材料工程研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Ruimin,Fan, Wugang,Guo, Xiangxin,et al. Highly ordered and ultra-long carbon nanotube arrays as air cathodes for high-energy-efficiency Li-oxygen batteries[J]. JOURNAL OF POWER SOURCES,2016,306:402-407. |
| APA | Yu, Ruimin,Fan, Wugang,Guo, Xiangxin,&Dong, Shaoming.(2016).Highly ordered and ultra-long carbon nanotube arrays as air cathodes for high-energy-efficiency Li-oxygen batteries.JOURNAL OF POWER SOURCES,306,402-407. |
| MLA | Yu, Ruimin,et al."Highly ordered and ultra-long carbon nanotube arrays as air cathodes for high-energy-efficiency Li-oxygen batteries".JOURNAL OF POWER SOURCES 306(2016):402-407. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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