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中文摘要：
具有石榴石结构的固体电解质Li7La3Zr2O12在室温下即可呈现出较高的离子电导率。采用固相反应法,通过在原料中调控不同的锂源含量,以及经历不同的烧结时间,探索了上述制备工艺条件对样品室温离子电导率的影响规律。结果表明：采用不同的锂含量均可获得立方石榴石结构;当混合原料中的锂源采用–3%Li含量时,可以获得最高电导率（2.11×10–4S/cm）;对于不含锂过量的原料,当烧结时间为30h时,可以获得最高电导率2.03×10–4S/cm。这些结果表明Li7La3Zr2O12在全固态锂离子电池中具有广阔的应用前景。
英文摘要：
As a solid electrolyte, Li7La3Zr2O12 in garnet structure exhibits a great ionic conductivity at room temperature. In this work, the effects of lithium content in the raw materials and sintering time were investigated via the conventional solid-state reaction. The results show that the cubic garnet structure is obtained for all the samples with different lithium contents in the raw materials. When there is –3% deficiency of lithium in the raw materials, the highest ionic conductivity of 2.11×10–4 S/cm is obtained. For the mixed raw materials without excessive lithium content, the ionic conductivity reaches the highest value of 2.03×10–4 S/cm when sintered for 30 hours. The results indicate that Li7La3Zr2O12 has a great potential in the application of all-solid-state lithium ion batteries as solid electrolyte materials.
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