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Article: Molybdenum Disulfide-Coated Lithium Vanadium Fluorophosphate Anode: Experiments and First-Principles Calculations

TitleMolybdenum Disulfide-Coated Lithium Vanadium Fluorophosphate Anode: Experiments and First-Principles Calculations
Authors
Issue Date2016
PublisherWiley - V C H Verlag GmbH & Co. KGaA. The Journal's web site is located at http://www.wiley-vch.de/publish/dt/journals/newJournals/2476/?sID=71f3d067ca62757ff511b46ff5181bd6
Citation
ChemSusChem, 2016, v. 9 n. 16, p. 2122-2128 How to Cite?
AbstractTo develop a new anode material to meet the increasing demands of lithium-ion battery, MoS2 is used for the first time to modify the C/LiVPO4F anode to improve its lithium-storage performance between 3 and 0.01 V. Morphological observations reveal that the MoS2-modified C/LiVPO4F particles (M-LVPF) are wrapped by an amorphous carbon as interlayer and layered MoS2 as external surface. Charge–discharge tests show that M-LVPF delivers a high reversible capacity of 308 mAh g−1 at 50 mA g−1. After 300 cycles at 1.0 A g−1, a capacity retention of 98.7 % is observed. Moreover, it exhibits high rate capability with a specific capacity of 199 mAh g−1 at 1.6 A g−1. Electrochemical impedance spectroscopy tests indicate that the lithium-ion diffusion and charge-exchange reaction at the surface of M-LVPF are greatly enhanced. First-principles calculations for the MoS2 (001)/C/LiVPO4F (010) system demonstrate that the absorption of MoS2 on C/LiVPO4F is exothermic and spontaneous and that the electron transfer at the MoS2-absorbed C/LiVPO4F surface is enhanced.
Persistent Identifierhttp://hdl.handle.net/10722/234529
ISSN
2015 Impact Factor: 7.116
2015 SCImago Journal Rankings: 2.649

 

DC FieldValueLanguage
dc.contributor.authorLiu, Z-
dc.contributor.authorPeng, W-
dc.contributor.authorXu, Z-
dc.contributor.authorShih, K-
dc.contributor.authorWang, JJ-
dc.contributor.authorWang, Z-
dc.contributor.authorLv, X-
dc.contributor.authorChen, J-
dc.contributor.authorLi, X-
dc.date.accessioned2016-10-14T13:47:28Z-
dc.date.available2016-10-14T13:47:28Z-
dc.date.issued2016-
dc.identifier.citationChemSusChem, 2016, v. 9 n. 16, p. 2122-2128-
dc.identifier.issn1864-5631-
dc.identifier.urihttp://hdl.handle.net/10722/234529-
dc.description.abstractTo develop a new anode material to meet the increasing demands of lithium-ion battery, MoS2 is used for the first time to modify the C/LiVPO4F anode to improve its lithium-storage performance between 3 and 0.01 V. Morphological observations reveal that the MoS2-modified C/LiVPO4F particles (M-LVPF) are wrapped by an amorphous carbon as interlayer and layered MoS2 as external surface. Charge–discharge tests show that M-LVPF delivers a high reversible capacity of 308 mAh g−1 at 50 mA g−1. After 300 cycles at 1.0 A g−1, a capacity retention of 98.7 % is observed. Moreover, it exhibits high rate capability with a specific capacity of 199 mAh g−1 at 1.6 A g−1. Electrochemical impedance spectroscopy tests indicate that the lithium-ion diffusion and charge-exchange reaction at the surface of M-LVPF are greatly enhanced. First-principles calculations for the MoS2 (001)/C/LiVPO4F (010) system demonstrate that the absorption of MoS2 on C/LiVPO4F is exothermic and spontaneous and that the electron transfer at the MoS2-absorbed C/LiVPO4F surface is enhanced.-
dc.languageeng-
dc.publisherWiley - V C H Verlag GmbH & Co. KGaA. The Journal's web site is located at http://www.wiley-vch.de/publish/dt/journals/newJournals/2476/?sID=71f3d067ca62757ff511b46ff5181bd6-
dc.relation.ispartofChemSusChem-
dc.rightsThis is the accepted version of the following article: ChemSusChem, 2016, v. 9 n. 16, p. 2122-2128, which has been published in final form at http://onlinelibrary.wiley.com/wol1/doi/10.1002/cssc.201600370/abstract-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleMolybdenum Disulfide-Coated Lithium Vanadium Fluorophosphate Anode: Experiments and First-Principles Calculations-
dc.typeArticle-
dc.identifier.emailShih, K: kshih@hku.hk-
dc.identifier.emailWang, JJ: jxwang@hku.hk-
dc.identifier.authorityShih, K=rp00167-
dc.description.naturepostprint-
dc.identifier.doi10.1002/cssc.201600370-
dc.identifier.pmid27376792-
dc.identifier.hkuros269399-
dc.identifier.volume9-
dc.identifier.issue16-
dc.identifier.spage2122-
dc.identifier.epage2128-
dc.publisher.placeGermany-

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