.Li3-2xB1-xNxO3(x=0.1,0.2,0.3)锂离子固体电解质的制备和性能研究[J].稀有金属材料与工程,2018,47(12):3835~3836.[.Preparation and characterization of Li3-2xB1-xNxO3(x=0.1,0.2,0.3)solid electrolytes[J].Rare Metal Materials and Engineering,2018,47(12):3835~3836.]
Li3-2xB1-xNxO3(x=0.1,0.2,0.3)锂离子固体电解质的制备和性能研究
投稿时间:2017-03-21  修订日期:2017-05-15
中文关键词:  固相法  固体电解质  锂离子电导率
基金项目:陕西省工业科技攻关项目(项目号2016GY-170)
中文摘要:
      首次以硝酸锂、碳酸锂、氧化硼为原料,采用固相法制备得到了Li3-2xB1-xNxO3(x=0.1,0.2,0.3)锂离子固体电解质,通过压烧结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Li3-2xB1-xNxO3(x=0.1,0.2,0.3)固态电解质进行了表征。结果表明:当x=0.2时,采用压烧结在600℃烧结10 h制备得到的固体电解质片致密度最高,达到理论密度的90.07%,室温锂离子总电导率也最大,为6.37×10-6 S/cm,此时激活能值最小,为0.48eV。
Preparation and characterization of Li3-2xB1-xNxO3(x=0.1,0.2,0.3)solid electrolytes
英文关键词:solid phase method  solid electrolyte  ionic conductivity
英文摘要:
      Samples of Li3-2xB1-xNxO3(x=0.1,0.2,0.3)compound with pure phase were obtained by coprecipitation method at the first time.Lithium nitrate, lithium carbonate and boron oxide were as the raw materials.The Li3-2xB1-xNxO3(x=0.1,0.2,0.3)precursor powders were sintered via pressureless sintering.And Li3-2xB1-xNxO3(x=0.1,0.2,0.3)solid electrolytes were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). The results show that samples Li2.6B0.8N0.2O3 sintered at 600℃ by the non pressure sintering showed the highest total conductivity of 6.37×10-6S/cm.The activation energy is 0.48 eV at 250~390K. And its density is the reaching 90.07% of theoretical density.
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