Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Constructing coral-like hierarchical porous carbon architectures with tailored pore size distribution as sulfur hosts for durable Li-S batteries | |
Hu, Qianqian1,2,3,4,5; Dong, Haiyong4; Wang, Biao1,2,3,5; Yang, Chun1,2,3,5; Wang, Xuyao1,2,3,5; Lu, Jiqun1,2,3,5; Hong, Ye6; Zhang, Lingzhi1,2,3,5
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| 2021-05-01 | |
| Source Publication | ELECTROCHIMICA ACTA
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| ISSN | 0013-4686 |
| Volume | 377Pages:9 |
| Corresponding Author | Hong, Ye(hongye2016@163.com) ; Zhang, Lingzhi(lzzhang@ms.giec.ac.cn) |
| Abstract | Structural hierarchy of porous carbon has been a key role in the sulfur hosts for lithium sulfur (Li-S) batteries. Herein, coral-like hierarchical porous carbon (HPC) is developed by a dual alkaline activation process. The production of HPC is inexpensive and scalable, which gives a great promise as sulfur host for the future application of Li-S batteries. Moreover, the as-prepared material achieves an admirable interconnected conductive network, hierarchical pore size distribution and notably high pore volume. This architecture contributes to ultrafast ion diffusion, rapid mass transport, robust electrode configuration as well as effective physical adsorption for soluble polysulfide, thus enabling a favorable scaffold for Li-S battery cathodes with high sulfur utilization and exceptionally electrochemical stability. As a consequence, the HPC based sulfur cathode manifests high areal capacity of 7.5mAh/cm(2) with a high sulfur loading and superb cycling stability over 500 cycles with lower sulfur loading. The classification of alkali significantly affects on the hierarchical porosity of the resultant carbon. And the correlation between the pore size distribution and electrochemical performance is revealed. This work offers a hierarchical material engineering of a sulfur host material for restricting the mobile polysulfide moieties, thus achieving a high efficiency and stable Li-S battery. (C) 2021 Elsevier Ltd. All rights reserved. |
| Keyword | Lithium sulfur batteries Hierarchical porous carbon Tailored porosity Durability |
| DOI | 10.1016/j.electacta.2021.138063 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | K.C. Wong Education Foundation ; National Natural Science Foundation of China[21573239] ; Guangzhou Automobile Group Co., Ltd. |
| WOS Research Area | Electrochemistry |
| Funding Organization | K.C. Wong Education Foundation ; National Natural Science Foundation of China ; Guangzhou Automobile Group Co., Ltd. |
| WOS Subject | Electrochemistry |
| WOS ID | WOS:000639189500004 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/32992 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Hong, Ye; Zhang, Lingzhi |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 4.GAC Automot Res & Dev Ctr, Guangzhou 511434, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Guangdong Polytech Normal Univ, Ind Training Ctr, Guangzhou 510665, Guangdong, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Hu, Qianqian,Dong, Haiyong,Wang, Biao,et al. Constructing coral-like hierarchical porous carbon architectures with tailored pore size distribution as sulfur hosts for durable Li-S batteries[J]. ELECTROCHIMICA ACTA,2021,377:9. |
| APA | Hu, Qianqian.,Dong, Haiyong.,Wang, Biao.,Yang, Chun.,Wang, Xuyao.,...&Zhang, Lingzhi.(2021).Constructing coral-like hierarchical porous carbon architectures with tailored pore size distribution as sulfur hosts for durable Li-S batteries.ELECTROCHIMICA ACTA,377,9. |
| MLA | Hu, Qianqian,et al."Constructing coral-like hierarchical porous carbon architectures with tailored pore size distribution as sulfur hosts for durable Li-S batteries".ELECTROCHIMICA ACTA 377(2021):9. |
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