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Updated: Sep 10, 2025
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
Optimizing lithium-ion diffusion pathways in LaCl3-based solid electrolytes through cation vacancy modulation
Yongmei Zhou1, Zhenyang Shen1, Pengfei Du1
1Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, College of Engineering, Northwest Normal University, Lanzhou 730070, China. wangqt@nwnu.edu.cn.
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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 the 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.
