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首页> 外文期刊>International Journal of Electrochemical Science >Ultrasound-assisted Hydrothermal Renovation of LiCoO2 from the Cathode of Spent Lithium-ion Batteries
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Ultrasound-assisted Hydrothermal Renovation of LiCoO2 from the Cathode of Spent Lithium-ion Batteries

机译：超声波辅助LiCoO 2 从废锂离子电池阴极的水热改造

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LiCoO2 powders are separated from aluminum sheet of spent LiCoO2 electrodes and renovated byultrasound radiation. LiCoO2 was obtained from electrode materials by burning off carbon and binderof the spent LiCoO2 electrodes at 500 C for 1 h. Used LiCoO2 material was renovated by means ofhydrothermal ultrasound radiation in a concentrated LiOH solution at 80C, ultrasonic power 600Wand ultrasonic radiation time for 6h. The experimental results show that the ultrasonic shearing effectsproduced hydroxyl radical which could help achieve the removing of Polyvinylidene fluoride (PVDF) he renovated LiCoO2 had high degree of crystallinity, fine layered structure, good dispersion ofparticles and improved electrochemical cycle performance. The renovated LiCoO2 phase exhibits thefirst discharge capacity of 133.5mAh/g and the discharge capacity retention of 99.5 After 40 cycleswhich can reach electrochemical properties of commercial batteries.
机译：LiCoO2粉末与铝板的LiCoO2电极分离，并翻新ButultraSound辐射。通过在500℃下燃烧碳和粘合剂1小时，从电极材料中从电极材料中获得LiCoO2。二手LiCoO2材料通过浓缩的LiOH溶液在80℃，超声波功率600和超声波辐射时间中通过浓缩的LiOH溶液进行翻新，6小时。实验结果表明，超声剪切效应羟基自由基，可以有助于达到聚偏二氟乙烯（PVDF）的去除HE先进的LiCoO2具有高度的结晶度，细层状结构，良好的分散性和改善的电化学循环性能。翻新的LiCoO2相表现出133.5mAh / g的流动放电容量，40个循环后的排出能力保留为99.5，可达到商用电池的电化学性能。

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