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Nitrogen-doped carbon decorated LiFePO4 composite synthesized via a microwave heating route using polydopamine as carbon-nitrogen precursor
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| 【文章作者】Han, Bing;Meng, Xudong;Ma, Lin;Nan, Jingyu |
| 【文章摘要】 Nitrogen-doped carbon decorated LiFePO4 composite have been synthesized by using polydopamine as carbon nitrogen precursor and investigated as a promising cathode for lithium-ion batteries. XRD patterns indicate that the nitrogen-doped carbon decorated LiFePO4 has an olivine structure. TEM result shows that a uniform thin nitrogen-doped carbon layer with a thickness of about 3 nm is successfully coated on the surface of LiFePO4 particles. Compared with the pristine LiFePO4 sample, the nitrogen-doped carbon decorated LiFePO4 composite has a high discharge capacity, good rate capability and stable cycling performance. The excellent electrochemical performance should be attributed to the enhanced electronic conductivity and increased Li+ ion diffusion of the electrode by the coating with nitrogen-doped carbon. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
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【卷】42 【ISSUE】2 Pt.A 【ISSUEID】815C0073
【文章期份】2016
【发布日期】2016/8/11 17:03:02
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