Core-shell meso/microporous carbon host for sulfur loading toward applications in lithium-sulfur batteries
文献类型：期刊论文
| 作者 | Zhang, Juan; Ye, Huan; Yin, Yaxia; Guo, Yuguo1
|
| 刊名 | JOURNAL OF ENERGY CHEMISTRY
 |
| 出版日期 | 2014-05-01 |
| 卷号 | 23期号:3页码:308-314 |
| 关键词 | Core-shell Structure Microporous Carbon Coating Mesoporous Carbon Lithium-sulfur Batteries Sulfur Cathode |
| ISSN号 | 2095-4956 |
| DOI | 10.1016/S2095-4956(14)60152-2 |
| 英文摘要 | Lithium-sulfur (Li-S) batteries belong to one of the promising technologies for high-energy-density rechargeable batteries. However, sulfur cathodes suffer from inherent problems of its poor electronic conductivity and the shuttling of highly dissoluble lithium polysulfides generated during the cycles. Loading sulfur into porous carbons has been proved to be an effective approach to alleviate these issues. Mesoporous and microporous carbons have been widely used for sulfur accommodation, but mesoporous carbons have poor sulfur confinement, whereas microporous carbons are impeded by low sulfur loading rates. Here, a core-shell carbon, combining both the merits of mesoporous carbon with large pore volume and microporous carbon with effective sulfur confinement, was prepared by coating the mesoporous CMK-3 with a microporous carbon (MPC) shell and served as the carbon host (CMK-3@MPC) to accommodate sulfur. After sulfur infusion, the as-obtained S/(CMK-3@MPC) cathode delivered a high initial capacity of up to 1422 mAh.g(-1) and sustained 654 mAh.g-1 reversible specific capacity after 36 cycles at 0.1 C. The good performance is ascribed to the unique core-shell structure of the CMK-3@MPC matrix, in which sulfur can be effectively confined within the meso/microporous carbon host, thus achieving simultaneously high electrochemical utilization. |
| 语种 | 英语 |
| WOS记录号 | WOS:000336645200009 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/50775]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Guo, Yuguo |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Juan,Ye, Huan,Yin, Yaxia,et al. Core-shell meso/microporous carbon host for sulfur loading toward applications in lithium-sulfur batteries[J]. JOURNAL OF ENERGY CHEMISTRY,2014,23(3):308-314. |
| APA | Zhang, Juan,Ye, Huan,Yin, Yaxia,&Guo, Yuguo.(2014).Core-shell meso/microporous carbon host for sulfur loading toward applications in lithium-sulfur batteries.JOURNAL OF ENERGY CHEMISTRY,23(3),308-314. |
| MLA | Zhang, Juan,et al."Core-shell meso/microporous carbon host for sulfur loading toward applications in lithium-sulfur batteries".JOURNAL OF ENERGY CHEMISTRY 23.3(2014):308-314. |
入库方式： OAI收割
来源：化学研究所
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