Electrochemical process of sulfur in carbon materials from electrode thickness to interlayer

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英文篇名：Electrochemical process of sulfur in carbon materials from electrode thickness to interlayer 作者：Xiaonan ; Tang ; Zhenhua ; Sun ; Huicong ; Yang ; Haitao ; Fang ; Fei ; Wei ; Hui-Ming ; Cheng ; Shuping ; Zhuo ; Feng ; Li 英文作者：Xiaonan Tang;Zhenhua Sun;Huicong Yang;Haitao Fang;Fei Wei;Hui-Ming Cheng;Shuping Zhuo;Feng Li;School of Chemical Engineering, Shandong University of Technology;Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences;School of Materials Science and Engineering, University of Science and Technology of China;School of Materials Science and Engineering, Harbin Institute of Technology;Department of Chemical Engineering, Tsinghua University;Tsinghua-Berkeley Shenzhen Institute, Tsinghua University; 英文关键词：Lithium–sulfur battery;;Electrochemical reaction;;Cathode thickness;;Chemical potential;;Ion diffusion 中文刊名：TRQZ 英文刊名：能源化学(英文版) 机构：School of Chemical Engineering, Shandong University of Technology;Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences;School of Materials Science and Engineering, University of Science and Technology of China;School of Materials Science and Engineering, Harbin Institute of Technology;Department of Chemical Engineering, Tsinghua University;Tsinghua-Berkeley Shenzhen Institute, Tsinghua University; 出版日期：2019-04-04 出版单位：Journal of Energy Chemistry 年：2019 期：v.31 基金：supported by the National Key R&D Program of China (2016YFA0200102, 2016YFB0100100, 2014CB932402);; the National Natural Science Foundation of China (Nos. 51525206, 51521091, 51372253, U1401243 and 21576159);; Youth Innovation Promotion Association of the Chinese Academy of Sciences (2015150);; the Institute of Metal Research (2015-PY03);; the Strategic Priority Research Program of Chinese Academy of Sciences (No. XDA09010104);; Key Research Program of the Chinese Academy of Sciences (Grant no. KGZD-EW-T06);; the CAS/SAFEA International Partnership Program for Creative Research Teams 语种：英文; 页：TRQZ201904014 页数：6 CN：04 ISSN：10-1287/O6 分类号：127-132

摘要

Lots of efforts have been done on different porous carbon materials as cathode for Lithium–sulfur(Li–S)battery. However, seldom researches have been done on the relationship between cathode thickness and electrochemical performance. Our work investigates the relation between electrochemical performance and cathode thickness with typical porous carbon materials. We explain the phenomenon that only a modest cathode thickness can have the most adequate electrochemical reaction trend through the aspect of thermodynamics(chemical potential) so that the best electrochemical performance can be obtained.Besides, interlayer can remit the shuttle effect but hinder the lithium ion diffusion process simultaneously. And we verify the effect of interlayer thickness on the shuttle effect and lithium ion diffusion process.
        Lots of efforts have been done on different porous carbon materials as cathode for Lithium–sulfur(Li–S)battery. However, seldom researches have been done on the relationship between cathode thickness and electrochemical performance. Our work investigates the relation between electrochemical performance and cathode thickness with typical porous carbon materials. We explain the phenomenon that only a modest cathode thickness can have the most adequate electrochemical reaction trend through the aspect of thermodynamics(chemical potential) so that the best electrochemical performance can be obtained.Besides, interlayer can remit the shuttle effect but hinder the lithium ion diffusion process simultaneously. And we verify the effect of interlayer thickness on the shuttle effect and lithium ion diffusion process.

引文

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