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| Directing electrochemical reaction mechanism via interfacial control for better sulfur cathode | |
| Hu, Lei1; Xue, Haifeng1; Liu, Lingli1; Liang, Sheng1; Ding, Tao2; Zhou, Ningning1; Wang, Lili1; Deng, Chonghai1; Han, Yongsheng3 | |
| 2022-04-15 | |
| Source Publication | APPLIED SURFACE SCIENCE
 |
| ISSN | 0169-4332 |
| Volume | 581Pages:9 |
| Abstract | The "shuttle effect" in ether electrolyte or nucleophilic reaction in carbonate electrolyte are major obstacles to developing of lithium-sulfur (Li-S) batteries. Superficial sulfur on the outside of microporous carbon host can occur"shuttle effect" in ether electrolyte or nucleophilic reaction in carbonate electrolyte, which may affect the electrochemical reaction mechanism for lithium-sulfur batteries and need to be further clarified. Herein, we rationally designed microporous carbon and non-microporous carbon as the sulfur hosts, and manipulated the distribution of sulfur via interfacial control in cathode material, exhibiting diverse electrochemical behavior in carbonate electrolyte and ether electrolyte. The surface composition of the electrode was confirmed by ex-situ XPS and verified by in-situ XRD, which contributes to demonstrating the definite reaction mechanisms of lithium-sulfur batteries in the different electrolytes. The results show only the sulfur confined in microporous structure is active via "solid-solid" pathway, and the presence of sulfur on the outer surface of the cathode electrode has the negative effect on electrochemical performance in both electrolytes, which should be avoided in the fabrication of carbon/sulfur composites. Based on microporous carbon/sulfur composites, the lithiated GeS full cell was proposed and exhibited superior cycling performance and high Coulombic Efficiency. |
| Keyword | Lithium-sulfur batteries Carbonate-based electrolyte Micropore carbon Ether-based electrolyte Electrochemical Reaction Mechanism |
| DOI | 10.1016/j.apsusc.2021.152353 |
| Language | 英语 |
| WOS Keyword | ULTRAMICROPOROUS CARBON ; LITHIUM ; ELECTROLYTE ; BATTERIES ; COMPOSITE ; STRATEGY ; REDISTRIBUTION ; CONVERSION ; OPERATION ; GRAPHITE |
| Funding Project | National Natural Science Foundation of China[51902079] ; Anhui Provincial Science and Technology Department Foundation[201903a05020021] ; Anhui Provincial Natural Science Foundation[2008085QE271] ; Hefei University Talent Research Fund Project[16-17RC10] ; Hefei University Talent Research Fund Project[16-17RC12] ; Hefei University Talent Research Fund Project[18-19RC-21] ; Support project for outstanding young talents in colleges and universities in Anhui Province[qxyq2021228] ; Research Development Foundation of Hefei University[19ZR12ZDA] |
| WOS Research Area | Chemistry ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| Funding Organization | National Natural Science Foundation of China ; Anhui Provincial Science and Technology Department Foundation ; Anhui Provincial Natural Science Foundation ; Hefei University Talent Research Fund Project ; Support project for outstanding young talents in colleges and universities in Anhui Province ; Research Development Foundation of Hefei University |
| WOS ID | WOS:000762839900001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/52311 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Hu, Lei; Liu, Lingli |
| Affiliation | 1.Hefei Univ, Sch Energy Mat & Chem Engn, Hefei 230601, Peoples R China 2.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Hu, Lei,Xue, Haifeng,Liu, Lingli,et al. Directing electrochemical reaction mechanism via interfacial control for better sulfur cathode[J]. APPLIED SURFACE SCIENCE,2022,581:9. |
| APA | Hu, Lei.,Xue, Haifeng.,Liu, Lingli.,Liang, Sheng.,Ding, Tao.,...&Han, Yongsheng.(2022).Directing electrochemical reaction mechanism via interfacial control for better sulfur cathode.APPLIED SURFACE SCIENCE,581,9. |
| MLA | Hu, Lei,et al."Directing electrochemical reaction mechanism via interfacial control for better sulfur cathode".APPLIED SURFACE SCIENCE 581(2022):9. |
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