材料科学
电化学
阴极
纳米线
化学工程
电池(电)
拉曼光谱
插层(化学)
储能
离子
钠离子电池
纳米技术
电极
法拉第效率
无机化学
有机化学
物理化学
化学
量子力学
工程类
功率(物理)
物理
光学
作者
Lingli Xing,Kwadwo Asare Owusu,Xinyu Liu,Jiashen Meng,Kun Wang,Qinyou An,Liqiang Mai
出处
期刊:Nano Energy
[Elsevier]
日期:2020-09-16
卷期号:79: 105384-105384
被引量:98
标识
DOI:10.1016/j.nanoen.2020.105384
摘要
Abstract As promising electrode materials for aluminum-ion batteries (AIBs), transition metal sulfides have attracted significant attention. However, the relative low energy density and poor rate property restrict their further applications. Herein, channels-rich VS4 nanowire clusters were synthesized via an amine ions-assisted method. When assessed as a cathode for rechargeable AIB, the VS4 nanowire clusters exhibit superior electrochemical performances, specifically, outstanding rate property (103.32 mAh g-1 at 800 mA g-1), good cycling stability and a high reversible capacity of 252.51 mAh g-1 (at 100 mA g-1). Moreover, ex-situ X-ray diffraction (XRD) and in-situ Raman techniques reveal that the as-prepared VS4 nanowire clusters have stable channels-rich structures, which is favorable for the mass transfer in electrochemical reaction. A mechanism of intercalation is proposed for the electrochemical process. This work takes a step toward the development of high-performance electrode materials for AIBs and provides new insights into the chemistry of AIBs for electrochemical energy storage.
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