-失序双o-酸Li60-3Bi16+(PS4)36的结构和离子导电性
Maximilian A Plass1,2, Maxwell W Terban1, Tanja Scholz1
1Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany.
Inorganic chemistry
|June 29, 2023
概括
研究人员详细介绍了第一个树脂硫酸盐结构,Li60-3Bi16+(PS4) 36. 尽管离子是无序的,但密集的框架限制了扩散通路,突出了固体电解质中的结构性质关系.
科学领域:
- 固态化学 固态化学
- 材料科学是一种材料科学.
- 晶体学 晶体学是指结晶学.
背景情况:
- 离子电池需要先进的固体电解质,以提高安全性和性能.
- 木硫酸盐是固态离子导电的有希望的材料类.
研究的目的:
- 为了确定含有的新型木 орто-thiophosphate 的晶体结构,Li60-3Bi16+(PS4) 36.
- 为了研究离子动态,扩散途径和这种材料内的导电性.
- 为在固体电解质中潜在的应用建立结构属性关系.
主要方法:
- 粉末X射线,中子和电子衍射用于结构确定.
- 固态核磁共振 (NMR) 光谱和脉冲场梯度NMR扩散测量用于离子动力学.
- 债券价值和计算用于分析扩散路径.
主要成果:
- 通过大单元细胞参数阐明了Li60-3Bi16+(PS4) 36 [空间组C2/c]的复杂单临床结构.
- 离子在宿主结构中表现出无序的分布,影响离子动态.
- 在20°C测量离子导电率在2.6×10−7和2.8×10−6S cm−1之间,激活能量为0.290.32 eV.
结论:
- 在Li60-3Bi16+(PS4)36中的密集宿主框架,尽管有障碍,但限制了扩散途径.
- 了解复杂的结构-性质相关性对于设计高效的固体电解质至关重要.
- 这项研究为下一代能源存储提供了对树脂硫酸盐基酸盐的基础见解.
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