کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1287426 | 973223 | 2006 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Enhancement of the rate capability and cyclability of an Mg–C composite electrode for Li secondary batteries Enhancement of the rate capability and cyclability of an Mg–C composite electrode for Li secondary batteries](/preview/png/1287426.png)
An Mg–C composite, prepared by high energy mechanical milling, was investigated as an anode material for lithium-ion batteries. Electrochemical tests demonstrated that the first charge and discharge capacities were 1810 and 1433 mA h g−1, respectively, with a coulombic efficiency for the first cycle of 80%. Ex situ XRD analyses combined with a differential capacity plot of the Mg–C composite electrode showed the phase changes during the electrochemical Li–Mg alloying/dealloying reaction. Significantly enhanced rate capability and reversibility of the electrochemical reaction of Mg with lithium were observed and the improvement in the electrochemical properties of the composite electrode was attributed to the high energy mechanical milling of Mg with carbon on the surface of the Mg–C composite.
Journal: Journal of Power Sources - Volume 158, Issue 2, 25 August 2006, Pages 1451–1455