Boosting lithium-ion transport in halide solid-state electrolytes by aliovalent substitution for all-solid-state lithium-ion batteries

Suyue Chen; Meiling Liu; Zhihao Yang; Yaxue Zhang; Jiaxing Liu; Weiying Wu; Tieqi Huang; Hongtao Liu

doi:10.1039/D5CC02859K

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Boosting lithium-ion transport in halide solid-state electrolytes by aliovalent substitution for all-solid-state lithium-ion batteries

Suyue Chen,†^a Meiling Liu,†^a Zhihao Yang,^a Yaxue Zhang,^a Jiaxing Liu,^a Weiying Wu,^a Tieqi Huang*^ab and Hongtao Liu

*^ab

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* Corresponding authors

^a College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
E-mail: tieqi_huang@csu.edu.cn, liuht@csu.edu.cn

^b Hunan Provincial Key Laboratory of Chemical Power Sources, Changsha 410083, China

Abstract

We report a novel chemical aliovalent substitution strategy that induces lithium vacancy generation, expands 3D Li⁺ migration channels, and reduces activation energy. The optimized composition Li_1.8Zr_0.8Nb_0.2Cl₆ achieves a room-temperature ionic conductivity twice higher than that of pristine Li₂ZrCl₆, realizing stable cycling in all-solid-state lithium-ion batteries.

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DOI: https://doi.org/10.1039/D5CC02859K
Article type: Communication
Submitted: 20 May 2025
Accepted: 30 Jul 2025
First published: 31 Jul 2025

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Chem. Commun., 2025, Advance Article

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Boosting lithium-ion transport in halide solid-state electrolytes by aliovalent substitution for all-solid-state lithium-ion batteries

S. Chen, M. Liu, Z. Yang, Y. Zhang, J. Liu, W. Wu, T. Huang and H. Liu, Chem. Commun., 2025, Advance Article , DOI: 10.1039/D5CC02859K

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Chemical Communications

Boosting lithium-ion transport in halide solid-state electrolytes by aliovalent substitution for all-solid-state lithium-ion batteries

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Boosting lithium-ion transport in halide solid-state electrolytes by aliovalent substitution for all-solid-state lithium-ion batteries

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