李文龙,刘欢.锆盐原料不同对LiZr2(PO4)3锂离子固体电解质结构及性能的影响[J].稀有金属材料与工程,2019,48(4):1298~1303.[liuhuan.The Influence of Zirconium Salt Materials on the Structure and Properties of LiZr2(PO4)3 Lithium ion Solid Electrolyte[J].Rare Metal Materials and Engineering,2019,48(4):1298~1303.]
锆盐原料不同对LiZr2(PO4)3锂离子固体电解质结构及性能的影响
投稿时间:2017-08-28  修订日期:2017-09-30
中文关键词:  LiZr2(PO4)3  锂离子固体电解质  锂离子电导率  锂离子二次电池
基金项目:陕西省科学技术研究发展计划项目(项目号2016GY170)
中文摘要:
      以不同的锆盐为原料,采用固相法及液相法制备LiZr2(PO4)3锂离子固体电解质,通过无压烧结的方式制备得到固体电解质片,并通过x射线衍射(XRD),扫描电子显微镜(SEM),电化学交流阻抗(EIS)对LiZr2(PO4)3锂离子固态电解质进行表征,通过测试结果对比分析,研究锆盐原料的不同对LiZr2(PO4)3锂离子固态电解质结构及性能的影响。结果表明:当以醋酸锆为锆盐原料时,合成的LiZr2(PO4)3以高电导率的菱方相于常温下稳定存在,而其他三种锆盐作原料时合成的LiZr2(PO4)3常温下以三斜相存在。制备的菱方相LiZr2(PO4)3电解质样品片室温锂离子总电导率最大,为2.25×10-5S/cm,且激活能值最小,为0.28eV。
The Influence of Zirconium Salt Materials on the Structure and Properties of LiZr2(PO4)3 Lithium ion Solid Electrolyte
英文关键词:LiZr2(PO4)3  Li-ion solid electrolyte  ionic conductivity  Li-ion secondary battery
英文摘要:
      Samples of LiZr2(PO4)3 compound with pure phase , adopting the method of solid phase and liquid phase method, were obtained by pressureless sintering from different zirconium salt raw materials. And LiZr2(PO4)3Li-ion solid electrolytes were characterized through x-ray diffraction (XRD), scanning electron microscope (SEM) and electrochemical impedance (EIS) . Analyzing the results of the test, the influence of different zirconium salt raw materials on the structure and performance of LiZr2(PO4)3 solid electrolytes is studied. A room-temperature stable α- LiZr2(PO4)3phase(R-3c,a=8.8442?andc=22.264?) is prepared from zirconium acetate. While synthetic LiZr2(PO4)3 prepared from the other three kinds of zirconium salt raw materials exist in triclinic phase . Rhombohedral phase LiZr2(PO4)3 lithium ion solid state electrolyte sample prepared from different zirconium raw materials show the highest total conductivity of 2.25 × 10-5 S/cm, and the activation energy is 0.28 eV.
作者单位
李文龙 中国科学院西安光学精密机械研究所 
刘欢  
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