Synthesis of LiFePO4 nanoparticles in polyol medium and their electrochemical properties
Synthesis of LiFePO4 nanoparticles in polyol medium and their electrochemical properties
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DOI：
10.1149/1.2218308
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发表时间：
2006-01-01
影响因子：
--
通讯作者：
Kim, Jaekook
中科院分区：
文献类型：
--
作者：
Kim, Dong-Han;Kim, Jaekook
LiFePO4 纳米粒子是使用多元醇工艺合成的，无需任何进一步加热作为后处理步骤。样品的 X 射线衍射图与斜方相吻合良好，没有不需要的杂质相。 LiFePO4纳米粒子的可逆容量为166 mAh/g，利用率高达98%，在长循环中具有优异的可逆性。该电极具有平均宽度为20 nm、长度为50 nm的斜方晶系单晶状、单分散均匀形态，在高倍率电流密度下表现出优异的容量保持率。 (c) 2006 年电化学协会。
LiFePO4 nanoparticles were synthesized using the polyol process without any further heating as a postprocessing step. The X-ray diffraction patterns of the sample exhibited a good fit with the orthorhombic phase with no unwanted impurity phases. The LiFePO4 nanoparticles showed a reversible capacity of 166 mAh/g, which amounts to a utilization efficiency of 98%, with an excellent reversibility in extended cycles. The electrode shows an excellent capacity retention at high-rate current densities due to its single-crystal-like and monodispersed uniform morphology with orthorhombic shape with an average width of 20 nm and length of 50 nm. (c) 2006 The Electrochemical Society.