| NASICON型固体电解质Li1.1Y0.1Zr1.9(PO4)3的SPS烧结及性能 |
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| 引用本文： | 徐唱,罗江斌,彭弯弯,程波明,邱世涛,钟怀玉,钟盛文.NASICON型固体电解质Li1.1Y0.1Zr1.9(PO4)3的SPS烧结及性能[J].有色金属科学与工程,2018,9(1):66-70. |
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| 作者姓名： | 徐唱 罗江斌 彭弯弯 程波明 邱世涛 钟怀玉 钟盛文 |
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| 作者单位： | a.江西理工大学，材料科学与工程学院，江西 赣州 3410002 |
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| 基金项目： | 国家自然科学基金资助项目51372104 |
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| 摘 要： | 采用溶胶-凝胶法合成NASICON型固体电解质Li1.1Y0.1Zr1.9(PO4)3粉体.研究了不同烧结方式对Li1.1Y0.1Zr1.9(PO4)3电解质的性能影响.通过差热分析仪分析前驱体的热性能，采用X射线衍射仪、扫描电子显微镜、交流阻抗仪对固体电解质的物相、结构及电化学性能进行表征.结果表明，溶胶-凝胶法成功制备出纯相的NASICON型Li1.1Y0.1Zr1.9(PO4)3，并且颗粒均匀；相比传统的无压烧结，SPS烧结明显提高了样品致密度(致密度达94.38 %)，室温离子电导率高达8.99×10-5 S/cm.
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| 关 键 词： | 固体电解质 Li1.1Y0.1Zr1.9(PO4)3 SPS烧结 离子电导率 |
| 收稿时间： | 2017-10-17 |
SPS sintering and properties of NASICON type solid electrolyte Li1.1Y0.1Zr1.9 (PO4)3 |
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| Affiliation: | a.School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Chinab.Jiangxi Key Laboratory of Power Battery and Materials, Jiangxi University of Science and Technology, Ganzhou 341000, China |
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| Abstract: | Li1.1Y0.1Zr1.9(PO4)3powder was prepared by the sol-gel method.The effects of sintering methods on the performance of Li1.1Y0.1Zr1.9(PO4)3 electrolyte were investigated. The thermal properties of the precursors were analyzed by differential scanning calorimetry. The phase, the structure as well as the electrochemical properties of the solid electrolyte were characterized by X-ray diffraction, scanning electron microscopy and electrochemical impedance spectroscopy. The results show that the pure phase of NASICON type Li1.1Y0.1Zr1.9(PO4)3 is successfully prepared by the sol-gel method. Compared with the conventional pressureless sintering, SPS sintering can obviously increase the density of the sample(94.38 % of the theoretical density), and the ionic conductivity reaches as high as 8.99 × 10-5 S/cm at room temperature. |
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