کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1294531 | 973620 | 2008 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Sol–gel synthesis of Mg1.03Mn0.97SiO4 and its electrochemical intercalation behavior Sol–gel synthesis of Mg1.03Mn0.97SiO4 and its electrochemical intercalation behavior](/preview/png/1294531.png)
Magnesium manganese silicate (Mg1.03Mn0.97SiO4) was prepared by a sol–gel method and evaluated as an intercalation electrode material for rechargeable magnesium batteries. The crystalline Mg1.03Mn0.97SiO4 phase was obtained after heating at 900 °C and its electrochemical performance was characterized at room temperature. The pure magnesium manganese silicate exhibits a relatively low reversible specific capacity in the electrolyte comprising 0.25 mol L−1 Mg(AlCl2EtBu)2/THF owing to its poor electronic conductivity. Using a ball mill in the presence of acetylene black, and in situ carbon coating, the resulting composites present an improved discharge voltage plateau (1.6 V vs. Mg/Mg2+) and increased discharge specific capacity (92.9 mAh g−1 at a C/50 rate). The Mg lower price and its feasibility for rechargeable batteries make magnesium manganese silicate an attractive candidate for rechargeable magnesium based batteries.
Journal: Journal of Power Sources - Volume 184, Issue 2, 1 October 2008, Pages 604–609