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| Li2O-TiO2-SiO2-P2O5和Li2O-TiO2-Al2O3-P2O5体系锂离子固体电解质的制备及性能研究 | |
| 引用本文： | 李文,王淼,李振华,尚学府,王恒,王幼文,徐亚伯.Li2O-TiO2-SiO2-P2O5和Li2O-TiO2-Al2O3-P2O5体系锂离子固体电解质的制备及性能研究[J].无机化学学报,2006,22(12):2217-2221. |
| 作者姓名： | 李文 王淼 李振华 尚学府 王恒 王幼文 徐亚伯 |
| 作者单位： | 1. 浙江大学物理系,杭州 310027 2. 浙江大学力学系,杭州 310027 3. 浙江大学分析测试中心,杭州,310027 |
| 摘 要： | 一些具有NASICON型网格结构的固体电解质具有高的电导率和好的稳定性,NASICON的意思是Na Super Ionic Conductor1]。当NaZr2(PO4)3中P5 被Si4 部分取代时便可以得到具有NASICON结构的Na1 xZr2SixP3-xO12体系,其具有高的钠离子电导率。然而有相同结构的Li1 xZr2SixP3-xO12体系的离子电导率却很低,这是因为Li 半径太小,而NASICON三维网格结构的离子通道太大,两者不匹配而使电导率下降2]。但当LiZr2(PO4)3中Zr4 被离子半径小些的Ti4 取代,所得LiTi2(PO4)3的通道就与Li 半径相匹配,适合于锂离子的迁移,从而使其电导率… |
| 关 键 词： | Li2O-TiO2-SiO2-P2O5 Li2O-TiO2-Al2O3-P2O5 固体电解质 离子电导率 |
| 文章编号： | 1001-4861(2006)12-2217-05 |
| 收稿时间： | 2006-04-11 |
| 修稿时间： | 2006-08-20 |
Synthesis and Characterization of Li-ion Solid Electrolyte of Li2O-TiO2-SiO2-P2O5 and Li2O-TiO2-Al2O3-P2O5 System |
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| LI Wen,WANG Miao,LI Zhen-Hu,SHANG Xue-Fu,WANG Heng,WANG You-Wen and XU Ya-Bo.Synthesis and Characterization of Li-ion Solid Electrolyte of Li2O-TiO2-SiO2-P2O5 and Li2O-TiO2-Al2O3-P2O5 System[J].Chinese Journal of Inorganic Chemistry,2006,22(12):2217-2221. | |
| Authors: | LI Wen WANG Miao LI Zhen-Hu SHANG Xue-Fu WANG Heng WANG You-Wen and XU Ya-Bo |
| Institution: | Department of Physics, Zhejiang University, Hangzhou 310027,Department of Physics, Zhejiang University, Hangzhou 310027,Department of Mechanics, Zhejiang University, Hangzhou 310027,Department of Physics, Zhejiang University, Hangzhou 310027,Department of Physics, Zhejiang University, Hangzhou 310027,Center of Analysis and Measurement, Zhejiang University, Hangzhou 310027 and Department of Physics, Zhejiang University, Hangzhou 310027 |
| Abstract: | The lithium ion-conductive solid electrolyte in the oxide systems of Li2O-TiO2-SiO2-P2O5 and Li2O-TiO2-Al2O3-P2O5 was prepared by solid-state reaction. The electrolyte pellets by cold-pressing method is 13 mm in diameter, about 1 mm in thickness. Phase identification and surface morphology of the products were carried out by X-ray diffraction and scanning electron microscopy. Ionic conductivity of the pellets was investigated through AC impedance. The results show that adulterate other cations can improve the ionic conductivity of the solid electrolyte. The maximum ionic conductivity in the samples is 9.912 × 10-4 S·cm-1 in the Li2O-TiO2-SiO2-P2O5 system. |
| Keywords: | Li2O-TiO2-SiO2-P2O5 Li2O-TiO2-Al2O3-P2O5 solid electrolyte ionic conductivity |
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