Low cost synthesis of LiFePO4/C cathode materials with Fe2O3
Low cost synthesis of LiFePO4/C cathode materials with Fe2O3
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DOI：
10.1016/j.jpowsour.2013.05.096
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发表时间：
2013-11
影响因子：
9.2
通讯作者：
Lifeng Cheng;G. Liang;Soumia El Khakani;D. MacNeil
中科院分区：
文献类型：
--
作者：
Lifeng Cheng;G. Liang;Soumia El Khakani;D. MacNeil
LiFePO4/C 复合材料由低成本 Fe2O3 前驱体通过水热法合成，第一步制备 LiFePO4(OH)，然后进行快速煅烧和碳涂层。该方法结合了水热合成法和固态合成法的优点。与使用相同前体采用固态方法合成的 LiFePO4 相比，所制备的 LiFePO4/C 具有增强的放电容量和循环稳定性。因此，本文描述的方法是降低大规模合成用于锂离子电池的LiFePO 4 /C的成本，同时保持足够的电化学性能的有希望的选择。
LiFePO4/C composite materials have been synthesized from a low cost Fe2O3precursor by a hydrothermal method to make LiFePO4(OH) in a first step followed by a fast calcination and carbon coating. This method combines the advantages of both hydrothermal and solid state synthetic methods. The as-prepared LiFePO4/C provides enhanced discharge capacity and cycling stability compared to LiFePO4synthesized using a solid state method with the same precursors. Thus, the method to be described herein is a promising option in the search to reduce the cost of large-scale synthesis of LiFePO4/C for use in lithium-ion batteries, while maintaining adequate electrochemical performance.