کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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184759 | 459581 | 2015 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Fe-added Fe3C carbon nanofibers as anode for Li ion batteries with excellent low-temperature performance Fe-added Fe3C carbon nanofibers as anode for Li ion batteries with excellent low-temperature performance](/preview/png/184759.png)
The poor conductivity of anodic carbon materials at low temperature hampers their high-level applications in Li ion batteries (LIBs). Introducing some reliable metals with good electrical conductivity into anodes could alleviate these problems. In this work, the novel composites of Fe-added Fe3C carbon nanofibers (Fe/Fe3CCNFs) were synthesized via facile electrospinning method and used as anode materials for LIBs. The resulting anodes with Fe/Fe3CCNF materials exhibited a high reversible capacity of 500 mAh g−1 tested at 200 mA g−1 even after 70 cycles and excellent performance at room temperature. Importantly, it delivered a high capacity of 250 mAh g−1 at 400 mA g−1 even after 55 cycles at a low temperature of −15 °C. The superior low-temperature electrochemical performance of the Fe/Fe3CCNF anodes is associated with an improved effect of the highly conducting Fe at low temperature.
The assembled lithium batteries with novel composites of Fe/Fe3C carbon nanofibers as anodes can afford excellent low-temperature electrochemical performance.Figure optionsDownload as PowerPoint slide
Journal: Electrochimica Acta - Volume 153, 20 January 2015, Pages 300–305