Ga-substituted Li₇La₃Zr₂O₁₂: An investigation based on grain coarsening in garnet-type lithium ion conductors

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• 作者：Changlong Li^a ; Yufei Liu^b ; Jian He^b ; Kyle S. Brinkman^a ; ^{ksbrink@clemson.edu}
• 关键词：Gallium doping ; Lithium ion conduction ; Spark plasma sintering ; Solid state electrolytes
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：3744-3752
• 全文大小：3411 K
• 卷排序：695

文摘

Gallium additions stabilized cubic symmetry in garnet-type Li7La3Zr2O12. Ionic conductivity was found to increase with increased density and grain size. Spark plasma sintering method improved the sinterability and grain coarsening. Highest ionic conductivity at room temperature was 5.81 × 10−5 S/cm (Ea = 0.41 eV).