中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 过程工程研究所
  3. 中国科学院过程工程研究所
Directing electrochemical reaction mechanism via interfacial control for better sulfur cathode

文献类型：期刊论文

作者Hu, Lei1; Xue, Haifeng1; Liu, Lingli1; Liang, Sheng1; Ding, Tao2; Zhou, Ningning1; Wang, Lili1; Deng, Chonghai1; Han, Yongsheng3
刊名APPLIED SURFACE SCIENCE
出版日期2022-04-15
卷号581页码:9
关键词Lithium-sulfur batteries Carbonate-based electrolyte Micropore carbon Ether-based electrolyte Electrochemical Reaction Mechanism
ISSN号0169-4332
DOI10.1016/j.apsusc.2021.152353
英文摘要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.
WOS关键词ULTRAMICROPOROUS CARBON ; LITHIUM ; ELECTROLYTE ; BATTERIES ; COMPOSITE ; STRATEGY ; REDISTRIBUTION ; CONVERSION ; OPERATION ; GRAPHITE
资助项目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研究方向Chemistry ; Materials Science ; Physics
语种英语
WOS记录号WOS:000762839900001
出版者ELSEVIER
资助机构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
源URL[http://ir.ipe.ac.cn/handle/122111/52310]  
专题中国科学院过程工程研究所
通讯作者Hu, Lei; Liu, Lingli
作者单位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
推荐引用方式
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.

入库方式： OAI收割

来源：过程工程研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。