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首页> 外文期刊>Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry >Metal tetrabromophthalocyanines mediate the structure and electrochemical performance of lithium iron phosphate as cathode materials for lithium-ion batteries
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Metal tetrabromophthalocyanines mediate the structure and electrochemical performance of lithium iron phosphate as cathode materials for lithium-ion batteries

机译：金属四溴酞菁介导磷酸铁锂作为锂离子电池正极材料的结构和电化学性能

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摘要

A novel series of cathode materials based on lithium iron phosphate (LiFePO4) for Li-ion batteries are synthesized by comprehensive utilization of solvothermal technique and high temperature calcination method. In this work, metal tetrabromophthalocyanines are utilized to control the structure of LiFePO4 and the electrochemistry of the final products is studied. The composition, structure and morphology characterizations include ICP-AES, XRD, SEM and TEM experiments. Electrochemical performance of each modified material in the Li-ion battery is evaluated by electrochemical measuring technology. The results exhibit that the as-synthesized samples can improve the initial discharge capacity of the Li-ion battery up to 150.7 mAh g(-1) at the rate of 0.1 C. In addition, the most excellent composite can enhance the rate capability of the battery dramatically compared with that of the pristine LiFePO4. (C) 2015 Elsevier B.V. All rights reserved.
机译：综合利用溶剂热技术和高温煅烧法，合成了一系列新型的锂离子电池正极材料磷酸铁锂（LiFePO4）。在这项工作中，金属四溴酞菁用于控制LiFePO4的结构，并研究了最终产物的电化学。组成，结构和形态表征包括ICP-AES，XRD，SEM和TEM实验。通过电化学测量技术评估锂离子电池中每种改性材料的电化学性能。结果表明，合成样品可以在0.1 C的速率下将锂离子电池的初始放电容量提高至150.7 mAh g（-1）。此外，最优异的复合材料可以提高锂离子电池的速率能力。与原始的LiFePO4相比，电池的性能显着提高。 （C）2015 Elsevier B.V.保留所有权利。

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