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Complex Hollow Structures of Cobalt(II) Sulfide as a Cathode for Lithium-Sulfur Batteries
Li, Miaomiao2; Feng, Wangjun1,2; Wang, Xuan1,2
2020-01
Source PublicationINTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN1452-3981
Volume15Issue:1Pages:526-534
AbstractLithium-sulfur batteries are considered the most promising candidates in the next generation of electrochemical energy storage because of their huge advantages in energy density, coulombic efficiency and price. One of the problems to be solved is promoting the conversion of polysulfides while maintaining high sulfur utilization. Complex double-layered hollow nanostructures have attracted wide attention as battery cathode materials. A ZIF-67 nanocube is used as a template to form a double-layer hollow structure (denoted as CoS) in which the inner layer is a CoS nanobox and the outer shell is a CoS nanosheet. In general, the double-layer hollow structure not only maximizes the encapsulation of sulfur but also provides sufficient reaction sites to optimize the electrochemical properties of the material. As a cathode material for Li-S batteries, cobalt-based sulfides also improve electrochemical performance due to their high electronic conductivity and abundance of redox reaction sites. The initial discharge capacity of the battery at 0.1 C was 1275.76 mA h g(-1), demonstrating excellent rate performance.
KeywordLithium-sulfur batteries ZIF-67 nanocube double-layer hollow structure cathode
DOI10.20964/2020.01.77
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[11264023]
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000505155000044
PublisherESG
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64188
Collection理学院
省部共建有色金属先进加工与再利用国家重点实验室
Corresponding AuthorFeng, Wangjun; Wang, Xuan
Affiliation1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
First Author AffilicationColl Sci
Corresponding Author AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials;  Coll Sci
First Signature AffilicationColl Sci
Recommended Citation
GB/T 7714
Li, Miaomiao,Feng, Wangjun,Wang, Xuan. Complex Hollow Structures of Cobalt(II) Sulfide as a Cathode for Lithium-Sulfur Batteries[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2020,15(1):526-534.
APA Li, Miaomiao,Feng, Wangjun,&Wang, Xuan.(2020).Complex Hollow Structures of Cobalt(II) Sulfide as a Cathode for Lithium-Sulfur Batteries.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,15(1),526-534.
MLA Li, Miaomiao,et al."Complex Hollow Structures of Cobalt(II) Sulfide as a Cathode for Lithium-Sulfur Batteries".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 15.1(2020):526-534.
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