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Mathematical modeling of high-power-density insertion electrodes for lithium ion batteries

机译:锂离子电池高功率密度插入电极的数学模型

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摘要

Theoretical calculations are compared with well-controlled experiments conducted on a high-surface area, small diameter lithiated-carbon electrodes. The electrodes are shown to yield very high current densities and exhibit little interfacial kinetics resistance or intercalate diffusion resistance. The mathematical treatment describes quantitatively a wide range of electrochemical experiments. The application of the model to the experimental data is facilitated by the use of a reference electrode. Initial cycling behavior of the high-surface-area electrode is elucidated, including clarification of the first-cycle coulombic inefficiency. Nitrogen absorbtion and scanning electron micrographs are utilized to ascertain the microstructural characteristics that distinguish the active electrode material.
机译:将理论计算与在高表面积,小直径锂化碳电极上进行的良好控制的实验进行比较。电极显示出非常高的电流密度,并且几乎没有界面动力学电阻或嵌入物扩散电阻。数学处理定量地描述了广泛的电化学实验。通过使用参比电极,可将模型应用于实验数据。阐明了高表面积电极的初始循环行为,包括澄清了第一循环库仑效率低下。利用氮吸收和扫描电子显微照片来确定区分活性电极材料的微观结构特征。

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