Understanding Li⁺ transport in organic–inorganic hybrid electrolytes, where Li⁺ has to lose its organic solvation shell to enter and transport through the inorganic phase, is crucial to the design of high-performance batteries. As a model system, we investigate a range of Li⁺-conducting particles suspended in a concentrated electrolyte. We show that large Li_1.3Al_0.3Ti_1.7P₃O₁₂ and Li₆PS₅Cl particles can enhance the overall conductivity of the electrolyte. When studying impedance using a cell with a large cell constant, the Nyquist plot shows two semicircles: a high-frequency semicircle related to ion transport in the bulk of both phases and a medium-frequency semicircle attributed to Li⁺ transporting through the particle/liquid interfaces. Contrary to the high-frequency resistance, the medium-frequency resistance increases with particle content and shows a higher activation energy. Furthermore, we show that small particles, requiring Li⁺ to overcome particle/liquid interfaces more frequently, are less effective in facilitating Li⁺ transport. Overall, this study provides a straightforward approach to study the Li⁺ transport behavior in hybrid electrolytes.

中文翻译：

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含有锂离子导电无机颗粒的浓缩液体电解质中锂离子的传输和相间交换

了解有机-无机混合电解质中Li ^{+ 的传输（其中Li +}必须失去其有机溶剂化壳才能进入并通过无机相传输）对于高性能电池的设计至关重要。作为模型系统，我们研究了一系列悬浮在浓缩电解质中的Li ⁺导电颗粒。我们表明，大的Li _1.3 Al _0.3 Ti _1.7 P ₃ O ₁₂和Li ₆ PS ₅ Cl颗粒可以增强电解质的整体电导率。当使用具有大电池常数的电池研究阻抗时，奈奎斯特图显示两个半圆：与两相主体中的离子传输相关的高频半圆和归因于 Li ⁺通过颗粒/液体传输的中频半圆接口。与高频电阻相反，中频电阻随着颗粒含量的增加而增加，并表现出更高的活化能。此外，我们发现小颗粒需要Li ^{+更频繁地克服颗粒/液体界面，因此在促进Li +}传输方面效果较差。总体而言，这项研究提供了一种研究混合电解质中Li ^{+传输行为的直接方法。}