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Constructing coral-like hierarchical porous carbon architectures with tailored pore size distribution as sulfur hosts for durable Li-S batteries

文献类型：期刊论文

作者Hu, Qianqian1,2,3,4,6; Dong, Haiyong3; Wang, Biao1,2,4,6; Yang, Chun1,2,4,6; Wang, Xuyao1,2,4,6; Lu, Jiqun1,2,4,6; Hong, Ye5; Zhang, Lingzhi1,2,4,6
刊名ELECTROCHIMICA ACTA
出版日期2021-05-01
卷号377页码:9
关键词Lithium sulfur batteries Hierarchical porous carbon Tailored porosity Durability
ISSN号0013-4686
DOI10.1016/j.electacta.2021.138063
通讯作者Hong, Ye(hongye2016@163.com) ; Zhang, Lingzhi(lzzhang@ms.giec.ac.cn)
英文摘要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.
资助项目K.C. Wong Education Foundation ; National Natural Science Foundation of China[21573239] ; Guangzhou Automobile Group Co., Ltd.
WOS研究方向Electrochemistry
语种英语
WOS记录号WOS:000639189500004
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构K.C. Wong Education Foundation ; National Natural Science Foundation of China ; Guangzhou Automobile Group Co., Ltd.
源URL[http://ir.giec.ac.cn/handle/344007/32991]  
专题中国科学院广州能源研究所
通讯作者Hong, Ye; Zhang, Lingzhi
作者单位1.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China
3.GAC Automot Res & Dev Ctr, Guangzhou 511434, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Guangdong Polytech Normal Univ, Ind Training Ctr, Guangzhou 510665, Guangdong, Peoples R China
6.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式
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.

入库方式： OAI收割

来源：广州能源研究所

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