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Kinetically Enhanced Electrochemical Redox of Polysulfides on Polymeric Carbon Nitrides for Improved Lithium-Sulfur Batteries
Liang, J; Yin, LC; Tang, XN; Yang, HC; Yan, WS; Song, L; Cheng, HM; Li, F; Li, F (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
2016-09-28
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume8Issue:38Pages:25193-25201
AbstractThe kinetics and stability of the redox of lithium polysulfides (LiPSs) fundamentally determine the overall performance of lithium-sulfur (Li-S) batteries. Inspired by theoretical predictions, we herein validated the existence of a strong electrostatic affinity between polymeric carbon nitride (p-C3N4) and LiPSs, that can not only stabilize the redox cycling of LiPSs, but also enhance their redox kinetics. As a result, utilization of p-C3N4 in a Li-S battery has brought much improved performance in the aspects of high capacity and low capacity fading over prolonged cycling. Especially upon the application of p-C3N4, the kinetic barrier of the LIPS redox reactions has been significantly reduced, which has thus resulted in a better rate performance. Further density functional theory simulations have revealed that the origin of such kinetic enhancement was from the distortion of molecular configurations of the LiPSs anchored on p-C3N4. Therefore, this proof-of-concept study opens lip a promising avenue to improve the performance of Li-S batteries by accelerating their fundamental electrochemical redox processes, which also has the potential to be applied in other electrochemical energy storage/conversion systems.
description.department[liang, ji ; yin, lichang ; tang, xiaonan ; yang, huicong ; cheng, hui-ming ; li, feng] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [tang, xiaonan] shandong univ technol, sch chem engn, 266 cunxi rd, zibo 255000, shandong, peoples r china ; [yang, huicong] shanghai tech univ, sch phys sci & technol, shanghai 200031, peoples r china ; [yan, wensheng ; song, li] univ sci & technol china, cas ctr excellence nanosci, natl synchrotron radiat lab, hefei 230029, anhui, peoples r china
KeywordLithium Polysulfide Carbon Nitride Graphene Adsorption Redox Kinetics
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationT. S. Ke Research Fellowship Program of Shenyang National Laboratory for Materials Science; China Postdoctoral Science Foundation [2015M571342]; Ministry of Science and Technology of China [2016YFA0200100, 2014CB932402, 2014CB848900]; National Science Foundation of China [51521091, 51525206, 11375198, 11574280, U1401243, U1532112, 51472249]; "Strategic Priority Research Program" of the Chinese Academy of Sciences [XDA01020304]; CAS Hefei Science Center [2015HSC-UP020]; Chinese Academy of Sciences [KGZD-EW-T06]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/76274
Collection中国科学院金属研究所
Corresponding AuthorCheng, HM; Li, F (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Liang, J,Yin, LC,Tang, XN,et al. Kinetically Enhanced Electrochemical Redox of Polysulfides on Polymeric Carbon Nitrides for Improved Lithium-Sulfur Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(38):25193-25201.
APA Liang, J.,Yin, LC.,Tang, XN.,Yang, HC.,Yan, WS.,...&Li, F .(2016).Kinetically Enhanced Electrochemical Redox of Polysulfides on Polymeric Carbon Nitrides for Improved Lithium-Sulfur Batteries.ACS APPLIED MATERIALS & INTERFACES,8(38),25193-25201.
MLA Liang, J,et al."Kinetically Enhanced Electrochemical Redox of Polysulfides on Polymeric Carbon Nitrides for Improved Lithium-Sulfur Batteries".ACS APPLIED MATERIALS & INTERFACES 8.38(2016):25193-25201.
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