Optimizing lithium-ion diffusion pathways in LaCl<sub>3</sub>-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 the Li<sup>+</sup> 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 Li<sub>3.6</sub>La<sub>3.2</sub>In<sub>1.6</sub>Cl<sub>18</sub> sample exhibits an exceptional lithium-ion conductivity of 0.17 mS cm<sup>-1</sup> at 30 °C, coupled with a low migration activation energy of 0.484 eV.
Authors
- Qingtao Wang (ORCID: https://orcid.org/0000-0003-3525-3422)
- Xiaozong Zhang
- Can Ma (ORCID: https://orcid.org/0000-0001-6174-8010)
- Peng Zhang (ORCID: https://orcid.org/0000-0002-4137-8267)
- Pengfei Du (ORCID: https://orcid.org/0000-0002-1096-8125)
- Zhenyang Shen
- Yongmei Zhou
Institutions
- Northwest Normal University (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cc03777h
- Primary Topic
- Advanced Battery Materials and Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00