کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1286966 | 973209 | 2006 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of sulfur and nickel doping on morphology and electrochemical performance of LiNi0.5Mn1.5O4−xSx spinel material in 3-V region Effect of sulfur and nickel doping on morphology and electrochemical performance of LiNi0.5Mn1.5O4−xSx spinel material in 3-V region](/preview/png/1286966.png)
The effect of nickel and sulfur substitution for manganese and oxygen on the structure and electrochemical properties of the LiNi0.5Mn1.5O4−xSx is examined. The LiNi0.5Mn1.5O4−xSx (x = 0 and 0.05) compounds are successfully synthesized at 500 and 800 °C by co-precipitation using the metal carbonate (Ni0.5Mn1.5)CO3 as a precursor. The resulting powder with sulfur doping exhibits different morphology from a Ni-only doped spinel in terms of particle size and surface texture. The LiNi0.5Mn1.5O4−xSx (x = 0 and 0.05) powders are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and galvanostatic charge–discharge cycling. The nickel- and sulfur-doped spinel displays excellent capacity retention and rate capability in the 3-V region, compared with Ni-only doped spinel material.
Journal: Journal of Power Sources - Volume 161, Issue 1, 20 October 2006, Pages 19–26