电化学
铜
电解质
水溶液
电极
离子
扩散
电池(电)
材料科学
无机化学
电导率
硫黄
化学工程
化学
冶金
物理化学
热力学
有机化学
功率(物理)
工程类
物理
作者
Sunny Nandi,Hridoyjit Phukon,Dipul Kalita,Shyamal Das
摘要
We report the electrochemistry of Al3+ ion storage in copper tetrathiovanadate (Cu3VS4) in an aqueous electrolyte for the first time. It is found that Cu3VS4 could deliver an initial discharge capacity of 111 mA h g-1 at a current rate of 0.5 A g-1 and 77 mA h g-1 up to the 300th cycle at 2 A g-1 along with an excellent rate capability. The better electrochemical performance may be attributed to the high theoretical capacity of sulfur and the superior conductivity of copper which allows facile Al3+ ion diffusion in Cu3VS4. The electrochemical mechanism of Al3+ ion storage is also illustrated.
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