کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1287611 | 973228 | 2006 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The effect of compositional change of transition metals on the electrochemical behavior of layered LiMO2(M=LiwNixCoyMnz)(M=LiwNixCoyMnz) solid solutions The effect of compositional change of transition metals on the electrochemical behavior of layered LiMO2(M=LiwNixCoyMnz)(M=LiwNixCoyMnz) solid solutions](/preview/png/1287611.png)
Seven compositions of LiMO2(M=LiwNixCoyMnz)(M=LiwNixCoyMnz) (w=1/15−1/6w=1/15−1/6; x = 0 − 3/10; y = 1/5 − 1/2; z = 13/30 − 1/3; i.e. w+x+y+z=1w+x+y+z=1) solid solutions were synthesized using the sol–gel method with the following end members LiCoO2, Li2MnO3(Li[Li1/3Mn2/3]O2), and Li[Ni0.5Mn0.5]O2. The electrochemical behavior of the solid solutions was analyzed for the various compositions of metals in transition metal sites. All synthesized particles were semi-spherically shaped with a layered structure. When the content of lithium and cobalt was reduced (while the other metals were increased), the lattice parameters, a and c, decreased and were accompanied by a shift in the Raman spectrum. The cycling studies reveal that the compound, Li[Li1/12Ni1/4Co1/4Mn5/12]O2 was found to be optimal in voltage and from a stability point of view.
Journal: Journal of Power Sources - Volume 158, Issue 1, 14 July 2006, Pages 620–626