Abstract

Polarization of lithium iron phosphate-graphite batteries greatly affects its quality and life. In order to reduce the electrode polarization, the multi-walled carbon nanotubes/graphite double-layer anode was proposed to improve the performance of the battery, and the depolarization of the graphite anode electrode interface was studied. For the study of depolarization the electrode materials were characterized by scanning electron microscopy, XRD powder diffraction, cyclic voltammetry and AC impedance. The effect of double-layer anode on the charge and discharge of lithium batteries was also discussed. The results show that the discharge capacity increased by nearly two times by the conductive network.

中文翻译：

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碳纳米管/石墨双层阳极对磷酸铁锂电池的去极化作用

摘要

磷酸锂铁-石墨电池的极化极大地影响其质量和寿命。为了减少电极极化，提出了多壁碳纳米管/石墨双层阳极，以提高电池的性能，并研究了石墨阳极电极界面的去极化。为了研究去极化，通过扫描电子显微镜，XRD粉末衍射，循环伏安法和交流阻抗对电极材料进行了表征。还讨论了双层阳极对锂电池充电和放电的影响。结果表明，导电网络使放电容量增加了近两倍。