Spinel-Type Li <sub>2</sub> MnCl <sub>4</sub> Solid Electrolyte for All-Solid-State Batteries
Spinel-type halides are promising solid-state electrolytes with good interfacial compatibility and low cost. Herein, we report Li2MnCl4 electrolytes with Li/Mn ratio tuning in Li2–2xMn1+xCl4 (x = 0 – 0.3), lithium vacancies accelerate Li+ diffusion and spinel lattice reconstruction forms continuous ion transport channels, yielding a room-temperature ionic conductivity of 0.12 mS·cm–1. Li1.7Mn1.15Cl4-based all-solid-state batteries show high cycling stability with average Coulombic efficiency >99%. This work demonstrates Li2MnCl4 as a promising halide electrolyte for all-solid-state batteries.
Authors
- Z GAO
- Futing Sun
- Lang Tao
- Yunluo Wang
- Haijie Chen
- Yan Yang
Institutions
- Ministry of Education Science and Technology (MW)
- Donghua University (CN)
- Institute of Molecular Functional Materials (CN)
- Division of Materials Science and Engineering (AU)
Publication Details
- Journal
- ACS Applied Energy Materials
- Published
- 2026-02-19
- DOI
- https://doi.org/10.1021/acsaem.5c03631
- Primary Topic
- Advanced Battery Materials and Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00