Mechanism for Hydrothermal Synthesis of LiFePO(4) Platelets as Cathode Material for Lithium-Ion Batteries

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	Mechanism for Hydrothermal Synthesis of LiFePO(4) Platelets as Cathode Material for Lithium-Ion Batteries
	X. Qin; X. H. Wang; H. M. Xiang; J. Xie; J. J. Li; Y. C. Zhou
	2010
发表期刊	Journal of Physical Chemistry C
ISSN	1932-7447
卷号	114 期号:39 页码:16806-16812
摘要	The low-temperature hydrothermal synthesis method has been drawing ever-growing attention due to the fact that it has many advantages over conventional methods for preparing promising cathode material LiFePO(4). However; the mechanism for hydrothermal synthesis of LiFePO(4) remains unclear. Here, the hydrothermal reaction mechanism of LiFePO(4) is systematically studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), trail mission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and specific surface analysis. As evidenced by apparent precursor dissolution, fast hydrothermal formation, and significant decrease in particle size with adding alcohols and/or carbon black in the reaction system, a dissolution-precipitation mechanism accounts for the hydrothermal synthesis of LiFePO(4). Moreover, we identified tetraphosphate in the LiFePO(4) precursor. This compound undergoes hydrolysis upon heating during the hydrothermal process, resulting in a remarkable decline of pH value.
部门归属	[qin, xue; wang, xiaohui; xiang, huimin; xie, jie; li, jingjing; zhou, yanchun] chinese acad sci, high performance ceram div, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [qin, xue; xiang, huimin; xie, jie; li, jingjing] chinese acad sci, grad sch, beijing 100039, peoples r china.;wang, xh (reprint author), chinese acad sci, high performance ceram div, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;wang@imr.ac.cn
关键词	Dissolution-precipitation Mechanism Barium-titanate Powders Electrochemical Properties Phase-transition Reduction Method Olivine Lifepo4 Iron Phosphate Route Fepo4 Morphologies
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31413
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Qin,X. H. Wang,H. M. Xiang,et al. Mechanism for Hydrothermal Synthesis of LiFePO(4) Platelets as Cathode Material for Lithium-Ion Batteries[J]. Journal of Physical Chemistry C,2010,114(39):16806-16812.
APA	X. Qin,X. H. Wang,H. M. Xiang,J. Xie,J. J. Li,&Y. C. Zhou.(2010).Mechanism for Hydrothermal Synthesis of LiFePO(4) Platelets as Cathode Material for Lithium-Ion Batteries.Journal of Physical Chemistry C,114(39),16806-16812.
MLA	X. Qin,et al."Mechanism for Hydrothermal Synthesis of LiFePO(4) Platelets as Cathode Material for Lithium-Ion Batteries".Journal of Physical Chemistry C 114.39(2010):16806-16812.