کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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179662 | 459358 | 2012 | 4 صفحه PDF | دانلود رایگان |
The physical and electrochemical behaviors of the carbon-coated NaCrO2 electrodes for sodium-ion batteries are investigated for the first time. The discharge capacity of carbon-coated NaCrO2 after the 40th cycle remains 110 mAh g− 1. The carbon-coated NaCrO2 shows better performances in terms of the larger discharge capacity and improved cycle stability than naked NaCrO2. Our results have demonstrated the feasibility of the carbon-coating in improving the cyclic stability of electrode materials for sodium ion batteries.
► In this paper, we fabricated carbon-coated NaCrO2 composite by a solid-state reaction process.
► We examined the physical and electrochemical behaviors of the carbon-coated NaCrO2 electrodes with sodium.
► We found the discharge capacity of carbon-coated NaCrO2 of 110 mAh g− 1 after the 40th cycle.
► The carbon-coated NaCrO2 showed larger specific capacity and better cycle performance than those of the naked one.
► The carbon layer on the surface of NaCrO2 could effectively improve the cycling performance.
Journal: Electrochemistry Communications - Volume 22, August 2012, Pages 85–88