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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
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| 2021-11-11 | |
| Source Publication | JOURNAL OF PHYSICAL CHEMISTRY C
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| ISSN | 1932-7447 |
| Volume | 125Issue:44Pages:24318-24327 |
| Abstract | Unfavorable 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. |
| DOI | 10.1021/acs.jpcc.1c07617 |
| Language | 英语 |
| WOS Keyword | GENERALIZED GRADIENT APPROXIMATION ; HIGH-PRESSURE ; RUTILE-TYPE ; POLYSULFIDES ; PERFORMANCE ; DIFFRACTION ; COMPOSITES ; CONVERSION ; GRAPHENE ; SURFACE |
| Funding Project | General 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 Area | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| Funding Organization | General Program of National Natural Science Foundation of China |
| WOS ID | WOS:000719766300005 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/51137 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Huo, Feng; He, Hongyan |
| Affiliation | 1.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 |
| First Author Affilication | Center of lonic Liquids and Green Engineering |
| Corresponding Author Affilication | Center of lonic Liquids and Green Engineering |
| 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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