CAS OpenIR
Spider-Web-Inspired NanocompositeModified Separator: Structural and Chemical Cooperativity Inhibiting the Shuttle Effect in Li-S Batteries
Fang, Daliang1,2; Wang, Yanlei1; Liu, Xizheng3; Yu, Jia1; Qian, Cheng4; Chen, Shimou1; Wang, Xi5,6,7; Zhang, Suojiang1
2019-02-01
Source PublicationACS NANO
ISSN1936-0851
Volume13Issue:2Pages:1563-1573
Abstract

Despite their high theoretical capacity density (1675 mAh g(-1)), the application of Li S batteries has been seriously hindered by the shuttle effect of polysulfides. Here, inspired by the working principle of natural spider webs, we synthesized a spider-web-like nanocomposite in which many hollow mesoporous silica (mSiO(2)) nanospheres/Co nanoparticles were threaded by interconnected nitrogen-doped carbon nanotubes (NCNTs). Then the nanocomposite (denoted as Co/mSiO(2) NCNTs) was coated on the commercial separator by a simple infiltration to mitigate the above issue. The intimate combination of three-dimensional conductive networks (NCNTs) with abundant polysulfide adsorbent sites (SiO2 and N)/polysulfide conversion catalysts (Co and Co N species) allows the Co/mSiO(2) NCNTs coating layer to not only effectively capture polysulfides via both physical confinement and chemical bonding but also accelerate the redox kinetics of polysulfides significantly. Furthermore, the combination of ex situ experiment and theoretical calculation demonstrates that the reversible adsorption/desorption of polysulfides on mSiO(2) nanospheres benefits uniform deposition of Li2S2/Li2S on the conductive networks, which contributes to long-term cycling stability. As a result, Li S batteries with Co/mSiO(2) NCNTs-coated separators exhibited both excellent cycling stability and rate performance.

KeywordZif-67 Spider Web Nanocomposite Modified Separator Li-s Batteries
DOI10.1021/acsnano.8b07491
Language英语
WOS KeywordHigh-energy-density ; Lithium ; Performance ; Graphene ; Polysulfides ; Redox
Funding ProjectNational Key Projects for Fundamental Research and Development of China[2016YFB0100104] ; National Natural Science Foundation of China[91534109] ; Beijing Municipal Science and Technology Project[D171100005617001] ; Beijing Natural Science Foundation[2184124]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Key Projects for Fundamental Research and Development of China ; National Natural Science Foundation of China ; Beijing Municipal Science and Technology Project ; Beijing Natural Science Foundation
WOS IDWOS:000460199400057
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28348
Collection中国科学院过程工程研究所
Corresponding AuthorChen, Shimou; Zhang, Suojiang
Affiliation1.Chinese Acad Sci, Beijing Key Lab Ion Liquid Clean Proc, CAS Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Tianjin Univ Technol, Tianjin Key Lab Adv Funct Porous Mat, Inst New Energy Mat & Low Carbon Technol, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China
4.Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Yangling 712100, Shaanxi, Peoples R China
5.Beijing Jiaotong Univ, Sch Sci, Key Lab Luminescence & Opt Informat, Minist Educ, Beijing 100044, Peoples R China
6.Tianjin Univ, Dept Chem, Tianjin Key Lab Mol Optoelect Sci, Tianjin 300072, Peoples R China
7.Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China
Recommended Citation
GB/T 7714
Fang, Daliang,Wang, Yanlei,Liu, Xizheng,et al. Spider-Web-Inspired NanocompositeModified Separator: Structural and Chemical Cooperativity Inhibiting the Shuttle Effect in Li-S Batteries[J]. ACS NANO,2019,13(2):1563-1573.
APA Fang, Daliang.,Wang, Yanlei.,Liu, Xizheng.,Yu, Jia.,Qian, Cheng.,...&Zhang, Suojiang.(2019).Spider-Web-Inspired NanocompositeModified Separator: Structural and Chemical Cooperativity Inhibiting the Shuttle Effect in Li-S Batteries.ACS NANO,13(2),1563-1573.
MLA Fang, Daliang,et al."Spider-Web-Inspired NanocompositeModified Separator: Structural and Chemical Cooperativity Inhibiting the Shuttle Effect in Li-S Batteries".ACS NANO 13.2(2019):1563-1573.
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