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Exploring the Peculiarities of LiFePO4 Hydrothermal Synthesis Using In Situ Calvet Calorimetry
Crystal Growth & Design ( IF 3.8 ) Pub Date : 2017-12-29 00:00:00 , DOI: 10.1021/acs.cgd.7b01366
Felix Yu. Sharikov 1 , Oleg A. Drozhzhin 2, 3 , Vasiliy D. Sumanov 2 , Andrey N. Baranov 2 , Artem M. Abakumov 3 , Evgeny V. Antipov 2
Affiliation  

Peculiarities of the hydrothermal synthesis of the lithium iron phosphate cathode material are studied using in situ Calvet calorimetry. Staging and temperature intervals of the phase formation process are determined as a function of the concentration of the initial reagents. Obtained results revealed a clear correlation between observed heat absorption behavior and lattice parameters, morphology, and electrochemical performance of the obtained LiFePO4 materials. Lowering temperature of the precursor dehydration leads to better Li/Fe ordering, smaller particle size of LiFePO4 samples, and the highest charge–discharge capacity measured in the Li-ion cell.

中文翻译:

原位Calvet量热法研究LiFePO 4水热合成的特殊性

使用原位Calvet量热法研究了磷酸铁锂正极材料水热合成的特殊性。相形成过程的阶段和温度间隔取决于初始试剂的浓度。所得结果表明,所观察到的吸热行为与所得LiFePO 4材料的晶格参数,形态和电化学性能之间存在明显的相关性。降低前驱物的脱水温度可导致更好的Li / Fe有序性,较小的LiFePO 4样品粒径以及在锂离子电池中测得的最高充放电容量。
更新日期:2017-12-29
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