LiSiPON固态薄膜电解质的结构和性能分析

Journal of Tianjin Normal University(Natural Science Edition)(2013)

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Abstract
以Li3PO4和Si3N4为靶材,利用离子束辅助沉积N离子流轰击法制备非晶结构的固态电解质LiSiPON薄膜.实验中,通过控制N2气和Ar气的流量比,调节薄膜的含氮量.利用X线衍射、X线能量色散谱仪和X线光电子能谱仪研究薄膜的结构和组织成分的变化,并通过电化学阻抗测试仪获得薄膜的离子电导率,研究不同氮氩比对LiSiPON薄膜结构、组成和电学性质的影响.结果表明:N2和Ar流量比为1∶1时,薄膜含氮量最高,离子电导率达到最大值,在室温时电解质薄膜的离子电导可达6.8×10-6S/cm,是一种有潜力应用于全固态薄膜锂离子电池的电解质材料.
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Key words
LiSiPON solid state electrolyte,thin film lithium ion battery,ion conductivity,ion beam assisted deposition(IBAD)
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