The effect of sintering process on lithium ionic conductivity of Li6.4Al0.2La3Zr2O12 garnet produced by solid-state synthesis

Xue Wenjuan; Yang Yaping; Yang Qiaoling; Liu Yuping; Wang Lian; Chen Changguo; Cheng Renju

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The effect of sintering process on lithium ionic conductivity of Li6.4Al0.2La3Zr2O12 garnet produced by solid-state synthesis

机译：固态合成产生烧结工艺对LI6.4AL0.2LA3ZR2O12石榴石锂离子电导率的影响

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Recently, solid-state electrolyte lithium lanthanum zirconium oxide garnet (Li7La3Zr2O12, LLZO) has attracted great attention due to its high room temperature conductivity of lithium ions and stability against lithium metal electrodes. The Al-doped cubic garnet Li6.4Al0.2La3Zr2O12 was synthesized by a conventional solid-state method at different sintering temperatures. The influence of the sintering process on the structure and ionic conductivity was investigated by X-ray diffraction, electrochemical impedance spectroscopy, and scanning electron microscopy. The results showed that Li vaporization and relative density were affected by the sintering process. The synergistic effects of Li concentration and relative density determined the Li+ ionic conductivity. Compared with the relative density, the Li concentration plays a more important role in determining the ionic conductivity via the solid-state method.

机译：最近，由于其锂离子的高室温导电性和锂金属电极稳定性，固态电解质锂镧锆锆锆锆锆锆锆锆锆（Li7la3zR2O12，LLZO）引起了极大的关注。通过在不同烧结温度下通过常规固态方法合成Al掺杂的立方石榴石Li6.4Al0.2La3zR2O12。通过X射线衍射，电化学阻抗光谱和扫描电子显微镜研究了烧结过程对结构和离子电导率的影响。结果表明，碱化过程的锂蒸发和相对密度受到烧结过程的影响。锂浓度和相对密度的协同作用确定了Li +离子电导率。与相对密度相比，Li浓度在通过固态方法确定离子电导率时起着更重要的作用。

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《RSC Advances》 |2018年第24期|共6页
作者
Xue Wenjuan; Yang Yaping; Yang Qiaoling; Liu Yuping; Wang Lian; Chen Changguo; Cheng Renju;
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作者单位

Chongqing Univ Coll Chem &

Chem Engn Chongqing 401331 Peoples R China;

Chongqing Acad Sci &

Technol Chongqing Res Ctr Adv Mat Chongqing 401123 Peoples R China;

Sichuan Univ Sci &

Engn Sch Mat Sci &

Engn Zigong 643000 Peoples R China;

Chongqing Univ Coll Chem &

Chem Engn Chongqing 401331 Peoples R China;

Chongqing Acad Sci &

Technol Chongqing Res Ctr Adv Mat Chongqing 401123 Peoples R China;

Chongqing Univ Coll Chem &

Chem Engn Chongqing 401331 Peoples R China;

Chongqing Acad Sci &

Technol Chongqing Res Ctr Adv Mat Chongqing 401123 Peoples R China;

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正文语种 eng
中图分类化学;
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1. The effect of sintering process on lithium ionic conductivity of Li6.4Al0.2La3Zr2O12 garnet produced by solid-state synthesis [J] . Xue Wenjuan, Yang Yaping, Yang Qiaoling, RSC Advances . 2018,第24期

机译：固态合成产生烧结工艺对LI6.4AL0.2LA3ZR2O12石榴石锂离子电导率的影响
2. The effect of LiAlSiO4 additions on lithium ionic conductivity of garnet Li6.75La3Zr1.75Nb0.25O12 prepared by solid-state synthesis [J] . Solid state ionics . 2020,第期

机译：基于固态合成制备的LiAlsio4添加对石榴石Li6.75LA3ZR1.75NB0.25012锂离子电导率的影响
3. Synthesis, ionic conductivity, and chemical compatibility of garnet-like lithium ionic conductor Li_5La_3Bi_2O_(12) [J] . Gao Y.X., Wang X.P., Wang W.G., Solid state ionics . 2010,第31a32期

机译：石榴石状锂离子导体Li_5La_3Bi_2O_（12）的合成，离子电导率和化学相容性
4. Effect of Mo~(6+) Substitution on Microstructure and Lithium Ionic Conductivity of Garnet-Type Li_7La_3Zr_2O_(12) Solid Electrolytes by Field Assisted Sintering Technology [C] . Fei Chen, Junyang Li, Yanhua Zhang, Proceedings of the 3rd Pan American materials congress . 2017

机译：Mo〜（6+）置换对石榴石型Li_7La_3Zr_2O_（12）固体电解质微结构和锂离子电导率的影响
5. The Effect of Excess Lithium on the Phase Formation, Structure and Electrical Properties of LLZO Garnet Structured Solid-State Electrolyte [D] . Bolek, Katherine. 2020

机译：多余锂对LLZO石榴石结构固态电解质的相形成，结构和电性能的影响
6. Submicron-Sized Nb-Doped Lithium Garnet for High Ionic Conductivity Solid Electrolyte and Performance of Quasi-Solid-State Lithium Battery [O] . Yan Ji, Cankai Zhou, Feng Lin, 2020

机译：高离子电导率固体电解质的亚微米级Nb掺杂锂石榴石和准固态锂电池的性能
7. Submicron Sized Nb Doped Lithium Garnet for High Ionic Conductivity Solid Electrolyte and Performance of All Solid-State Lithium Battery [O] . Yan Ji, Cankai Zhou, Feng Lin, 2019

机译：亚微米大小的Nb掺杂锂石榴石，用于高离子电导率固体电解质和所有固态锂电池的性能

The effect of sintering process on lithium ionic conductivity of Li6.4Al0.2La3Zr2O12 garnet produced by solid-state synthesis

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