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Facile synthesis of hydrated magnesium vanadium bronze sigma-Mg0.25V2O5 center dot H2O as a novel cathode material for lithium-ion batteries
Ma, Yining; Zhou, Huaijuan; Li, Rong; Huang, Aibin; Cao, Xun; Yao, Heliang; Bao, Shanhu; Ji, Shidong; Jin, Ping
2019-03-10
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume777Pages:931
SubtypeArticle
AbstractSquare block-like sigma-Mg0.25V2O5 center dot H2O with an open layered framework has been successfully synthesized via a facile hydrothermal method. The entire synthetic process is efficient and economically beneficial. As a cathode material for lithium-ion batteries, the hydrated magnesium vanadium bronze exhibits a high reversible capacity and excellent cycling stability at high current rates. High discharge capacities of 294.2 and 221 mA h g(-1) can be obtained at the current densities of 20 and 100 mA g(-1), respectively. Meanwhile, the electrode achieves a capacity retention of 87.12% after 100 cycles at 100 mA g(-1) and has an excellent long-term cyclic stability with an average decay of 0.053% per cycle over 400 cycles at 800 mA g(-1). The structural stability and impedance variation of the sigma-Mg0.25V2O5 center dot H2O electrodes upon cycling have also been investigated. The excellent electrochemical performance suggests that the layered Mg0.25V2O5 center dot H2O could be a promising candidate for the cathode material of lithium-ion batteries. (C) 2018 Elsevier B.V. All rights reserved.
Keywordsigma-Mg0.25V2O5 center dot H2O Long-term cyclic stability Cathode material Lithium-ion batteries Vanadium bronze
DOI10.1016/j.jallcom.2018.11.054
Language英语
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
PublisherELSEVIER SCIENCE SA
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27283
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Ma, Yining,Zhou, Huaijuan,Li, Rong,et al. Facile synthesis of hydrated magnesium vanadium bronze sigma-Mg0.25V2O5 center dot H2O as a novel cathode material for lithium-ion batteries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,777:931.
APA Ma, Yining.,Zhou, Huaijuan.,Li, Rong.,Huang, Aibin.,Cao, Xun.,...&Jin, Ping.(2019).Facile synthesis of hydrated magnesium vanadium bronze sigma-Mg0.25V2O5 center dot H2O as a novel cathode material for lithium-ion batteries.JOURNAL OF ALLOYS AND COMPOUNDS,777,931.
MLA Ma, Yining,et al."Facile synthesis of hydrated magnesium vanadium bronze sigma-Mg0.25V2O5 center dot H2O as a novel cathode material for lithium-ion batteries".JOURNAL OF ALLOYS AND COMPOUNDS 777(2019):931.
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