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Balancing Anchoring and Diffusion for Screening of Metal Oxide Cathode Materials in Lithium-Sulfur Batteries
Yang, Yaxi1,2; Wang, Yanlei2; Xia, Yu2,3; Huo, Feng2; He, Hongyan1,2
2021-11-11
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
Volume125Issue:44Pages:24318-24327
AbstractUnfavorable factors such as the shuttle effect caused by soluble lithium polysulfides, insulation of S and Li2S, and large volume expansion of S have greatly hindered the practical application of lithium-sulfur batteries. Using sulfur cathodes based on metal oxide nanocomposite materials has been proven to be an effective method to overcome the abovementioned problems and accomplish long-term cycle stability, excellent conductivity, and high-rate capacity. However, there is still a lack of clear mechanism research to balance between adsorption and diffusion and speedy selection method for oxides. Herein, we systematically studied the anchoring and diffusion properties of metal oxide MO2 (TiO2, SnO2, and RuO2) as cathode materials and then screened the materials through the equilibrium mechanism of adsorption and diffusion. According to the abovementioned research, due to its strong interaction with lithium polysulfides and low diffusion barrier for Li+, TiO2 exhibits excellent electrochemical performance and is considered to have great potential as an anchor material for lithium-sulfur batteries. Therefore, a comprehensive metal oxide selection criterion with stronger bonding strength (3-5 eV) and a lower diffusion barrier (<0.4 eV) is proposed. This work provides general guidance for the construction and screening of cathode materials to attain high-performance batteries in the future.
DOI10.1021/acs.jpcc.1c07617
Language英语
WOS KeywordGENERALIZED GRADIENT APPROXIMATION ; HIGH-PRESSURE ; RUTILE-TYPE ; POLYSULFIDES ; PERFORMANCE ; DIFFRACTION ; COMPOSITES ; CONVERSION ; GRAPHENE ; SURFACE
Funding ProjectGeneral Program of National Natural Science Foundation of China[21776278] ; General Program of National Natural Science Foundation of China[21878295] ; General Program of National Natural Science Foundation of China[22078024]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationGeneral Program of National Natural Science Foundation of China
WOS IDWOS:000719766300005
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51137
Collection中国科学院过程工程研究所
Corresponding AuthorHuo, Feng; He, Hongyan
Affiliation1.Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc,CAS Key La, Beijing 100190, Peoples R China
3.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China
Recommended Citation
GB/T 7714
Yang, Yaxi,Wang, Yanlei,Xia, Yu,et al. Balancing Anchoring and Diffusion for Screening of Metal Oxide Cathode Materials in Lithium-Sulfur Batteries[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2021,125(44):24318-24327.
APA Yang, Yaxi,Wang, Yanlei,Xia, Yu,Huo, Feng,&He, Hongyan.(2021).Balancing Anchoring and Diffusion for Screening of Metal Oxide Cathode Materials in Lithium-Sulfur Batteries.JOURNAL OF PHYSICAL CHEMISTRY C,125(44),24318-24327.
MLA Yang, Yaxi,et al."Balancing Anchoring and Diffusion for Screening of Metal Oxide Cathode Materials in Lithium-Sulfur Batteries".JOURNAL OF PHYSICAL CHEMISTRY C 125.44(2021):24318-24327.
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