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  • Multi-shelled metal oxides prepared via an anion-adsorption mechanism for lithium-ion batteries

    Author(s)
    Wang, Jiangyan
    Tang, Hongjie
    Zhang, Lijuan
    Ren, Hao
    Yu, Ranbo
    Jin, Quan
    Qi, Jian
    Mao, Dan
    Yang, Mei
    Wang, Yun
    Liu, Porun
    Zhang, Yu
    Wen, Yuren
    Gu, Lin
    Ma, Guanghui
    Su, Zhiguo
    Tang, Zhiyong
    Zhao, Huijun
    Wang, Dan
    Griffith University Author(s)
    Zhao, Huijun
    Liu, Porun
    Wang, Yun
    Year published
    2016
    Metadata
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    Abstract
    One of the major problems in the development of lithium-ion batteries is the relatively low capacity of cathode materials compared to anode materials. Owing to its high theoretical capacity, vanadium oxide is widely considered as an attractive cathode candidate. However, the main hindrances for its application in batteries are its poor capacity retention and low rate capability. Here, we report the development of multi-shelled vanadium oxide hollow microspheres and their related electrochemical properties. In contrast to the conventional cation-adsorption process, in which the metal cations adsorb on negatively charged ...
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    One of the major problems in the development of lithium-ion batteries is the relatively low capacity of cathode materials compared to anode materials. Owing to its high theoretical capacity, vanadium oxide is widely considered as an attractive cathode candidate. However, the main hindrances for its application in batteries are its poor capacity retention and low rate capability. Here, we report the development of multi-shelled vanadium oxide hollow microspheres and their related electrochemical properties. In contrast to the conventional cation-adsorption process, in which the metal cations adsorb on negatively charged carbonaceous templates, our approach enables the adsorption of metal anions. We demonstrate controlled syntheses of several multi-shelled metal oxide hollow microspheres. In particular, the multi-shelled vanadium oxide hollow microspheres deliver a specific capacity of 447.9 and 402.4 mAh g−1 for the first and 100th cycle at 1,000 mA g−1, respectively. The significant performance improvement offers the potential to reduce the wide capacity gap often seen between the cathode and anode materials.
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    Journal Title
    Nature Energy
    Volume
    1
    DOI
    https://doi.org/10.1038/nenergy.2016.50
    Subject
    Inorganic green chemistry
    Electrical engineering
    Environmental engineering
    Publication URI
    http://hdl.handle.net/10072/100907
    Collection
    • Journal articles

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