通过阳离子空位调制优化锂离子在lacl3基固体电解质中的扩散途径

IF 4.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications Pub Date : 2025-08-13 DOI:10.1039/d5cc03777h

Yongmei Zhou, Zhenyang Shen, Pengfei Du, Peng Zhang, Xiaozong Zhang, Can Ma, Qingtao Wang

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引用次数: 0

摘要

本研究在保持固定In:La摩尔比1:2的情况下，通过控制镧位阳离子空位，调节LiCl含量，提高Li+浓度，成功构建了三维锂离子扩散网络。这种方法有效地克服了原有一维通道的局限性。实验结果表明，优化后的Li3.6La3.2In1.6Cl18样品在30℃时的锂离子电导率为0.17 mS cm-1，迁移活化能低至0.484 eV。

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Optimizing Lithium-Ion Diffusion Pathways in LaCl3-Based Solid Electrolytes through Cation Vacancy Modulation

This study introduces controlled lanthanum-site cation vacancies while maintaining a fixed In:La molar ratio of 1:2 and adjusted the LiCl content to increase Li+ concentration, successfully constructing a three-dimensional (3D) lithium-ion diffusion network. This approach effectively overcomes the limitations of the original 1D channels. Experimental results demonstrate that the optimized Li3.6La3.2In1.6Cl18 sample exhibits an exceptional lithium-ion conductivity of 0.17 mS cm-1 at 30°C, coupled with a low migration activation energy of 0.484 eV.

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来源期刊

Chemical Communications 化学-化学综合

CiteScore

8.60

自引率

4.10%

发文量

2705

审稿时长

1.4 months

期刊介绍： ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.