Effect of heat-treatment atmosphere on structural properties of Li–Y–Cl solid electrolytes
Source abstract
Abstract
Chloride-based solid electrolytes (SEs) exhibit high ionic conductivity and wide electrochemical stability windows, 11 which have attracted much attention as ion conductors in all-solid-state lithium-ion batteries.However, a scalable 12 liquid-phase synthesis method for highly conductive chloride SEs has not yet been established owing to a limited 13 understanding of the effects of synthesis conditions on structural properties.In this study, highly crystalline 14 orthorhombic Li-Y-Cl SEs were synthesized via a pyridine-mediated liquid-phase synthesis method followed by 15 post-heat treatment under an Ar atmosphere.The synthesized Li 2.5 YCl 5.5 exhibited an ionic conductivity of 2.4 16 10 -4 S cm -1 at 25 C and oxidation stability up to 3.14 V versus Li-In.X-ray photoelectron spectroscopy analysis 17 revealed that heat treatment under an Ar atmosphere suppresses Cl release during crystallization, leading to the 18 formation of a highly crystalline orthorhombic phase.This study provides important insights into the role of 19 atmosphere control in the crystallization process of chloride SEs.20
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Battery Materials and Technologies · Molten salt chemistry and electrochemical processes · Thermal Expansion and Ionic Conductivity
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Research Institute of Electrochemical Energy, Department of Energy and Environment, National Institute of Advanced Industrial Science and Technology (AIST)
Department of Technological Systems, Environmental and Materials Chemistry Course, Osaka Metropolitan University College of Technology
References (16)
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