Tri-modal mesoporous carbon/sulfur nanocomposite for high performance Li-S battery
文献类型：期刊论文
| 作者 | Zhang, Hongzhang1; Hu, Wen1,2; Zhang, Huamin1; Wang, Meiri1; Qu, Chao1 |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2016-02-01 |
| 卷号 | 190页码:322-328 |
| 关键词 | Li-s Battery Tri-modal Mesoporous Carbon Capability And Cyclability Cathode Sol-gel Templating |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/j.electacta.2015.12.221 |
| 文献子类 | Article |
| 英文摘要 | A novel tri-modal mesoporous carbon (TMC)/S composite as a high performance cathode for Li-S battery is reported. The TMC host, synthesized by a simple sol-gel templating method, possesses one of the highest surface area of 2371 m(2) g(-1), pore volume of 2.85 cc g(-1) and a unique tri-modal mesopore structure (2.5 nm/9 nm/15 nm). Electrochemical tests reveal that the TMC/S-50 wt% nanocomposite cathode delivers an initial capacity up to 1029 mAh g(-1) at 3350 mA g(-1) (2C), and maintains a high reversible capacity of 843 mAh g(-1) after 100 cycles. And it retains a stable capacity of 708 mAh g(-1) after 100 cycles at 5025 mA g(-1) (charge/discharge in 20 min, 3C). Even with a higher sulfur loading, the TMC/S-70 wt% nanocomposite still reaches a reversible capacity of 700 mAh g(-1), and demonstrates a very low decay rate of only 0.088% per cycle over 300 cycles at 838 mA g(-1) (0.5C). We attribute such superior performance to the collective effect of tri-modal mesopore architecture, especially to the contribution of the exterior large mesopores (15 nm), designed being not only large enough to accommodate rapid electrolyte transport, moreover, small enough to serve as additional buffer spaces for polysulfides entrapment. (C) 2016 Elsevier Ltd. All rights reserved. |
| WOS关键词 | LITHIUM-SULFUR BATTERIES ; ELECTROCHEMICAL PROPERTIES ; CATHODE MATERIALS ; GRAPHENE OXIDE ; ELECTRODE ; COMPOSITES ; CELLS ; PAPER |
| WOS研究方向 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000371141500038 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/171070]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Hu, Wen; Zhang, Huamin |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China 2.Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Hongzhang,Hu, Wen,Zhang, Huamin,et al. Tri-modal mesoporous carbon/sulfur nanocomposite for high performance Li-S battery[J]. ELECTROCHIMICA ACTA,2016,190:322-328. |
| APA | Zhang, Hongzhang,Hu, Wen,Zhang, Huamin,Wang, Meiri,&Qu, Chao.(2016).Tri-modal mesoporous carbon/sulfur nanocomposite for high performance Li-S battery.ELECTROCHIMICA ACTA,190,322-328. |
| MLA | Zhang, Hongzhang,et al."Tri-modal mesoporous carbon/sulfur nanocomposite for high performance Li-S battery".ELECTROCHIMICA ACTA 190(2016):322-328. |
入库方式： OAI收割
来源：大连化学物理研究所
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