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Optimizing Lithium-Ion Diffusion Pathways in LaCl3-Based Solid Electrolytes through Cation Vacancy Modulation
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DOI：10.1039/D5CC03777H.png)
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Abstract
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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.
Keywords:
lanthanum-site cation vacancies
lithium-ion conductivity
3D diffusion network
LiCl content
activation energy
Journal
IF:
4.2
Papers:
5.9W
Citations:
16.5W
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