Spinel-Type Li 2 MnCl 4 Solid Electrolyte for All-Solid-State Batteries

ACS Applied Energy Materials 2026

View at publisher
Authors: Lang Tao, Z GAO, Futing Sun, Yan Yang, Yunluo Wang, Haijie Chen
DOI: 10.1021/acsaem.5c03631
Cited by: 2
References: 29

Abstract

Spinel-type halides are promising solid-state electrolytes with good interfacial compatibility and low cost. Herein, we report Li 2 MnCl 4 electrolytes with Li/Mn ratio tuning in Li 2–2 x Mn 1+ x Cl 4 ( 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 . Li 1.7 Mn 1.15 Cl 4 -based all-solid-state batteries show high cycling stability with average Coulombic efficiency >99%. This work demonstrates Li 2 MnCl 4 as a promising halide electrolyte for all-solid-state batteries.

Fields of Study & Subjects

Advanced Battery Materials and Technologies Thermal Expansion and Ionic Conductivity Inorganic Chemistry and Materials

Publication details

Journal / source
ACS Applied Energy Materials
Publisher
American Chemical Society (ACS)
Volume
9
Issue
5
Pages
2472–2480
Publication date
19 February 2026
Language
EN