Thermal stability and thermal conductivity of solid electrolytes

Abstract

Compared with liquid organic lithium-ion batteries, solid-state lithium-ion batteries have higher safety performance, so they are expected to become the next generation of energy storage devices and have attracted extensive research attention. The thermal management of the battery is a multi-coupling problem. Battery safety, cycle life, and even electrochemical reactions are all related to it. This Perspective presents the commonly used solid-state electrolytes and recent studies on their thermal stability and thermal transport properties. The thermal decomposition temperature and thermal conductivity are summarized, and we also present the summary and a brief outlook. This Perspective provides a reference for how to design and select high thermal conductive electrolyte materials, which is important for further advancement of solid-state lithium-ion batteries.

Giant Polarization in Quasi‐Adiabatic Ferroelectric Na+ Electrolyte for Solid‐State Energy Harvesting and Storage

“…[18][19][20] Investigation of the thermal behavior of the electrolyte is crucial to improve its performance within the cell. [9] To the best of our knowledge, this is the first time that the polarization process and thermodynamic properties of Na 2.99 Ba 0.005 ClO solid electrolyte have been studied, paving the way for the design of safer and more efficient Na + -based solid electrolytes.…”

“…At the same time, concerns regarding fossil energy supply are increasing quickly in countries with high energy consumption, industrial activities, and rapid globalization. One Solid-state electrolytes (SSEs) have been attracting significant attention due to their advantages, such as non-flammability, higher thermal stability, no leakage risk, and non-volatile materials; SSEs also demonstrate better mechanical properties and higher electrochemical window of stability [9] besides a lower predisposition to form dendrites. These latter features facilitate the use of alkali metal anodes and a wider variety of cathodes.…”

Disulfide bond-embedded polyurethane solid polymer electrolytes with self-healing and shape-memory performance

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Determining ion activity coefficients in ion-exchange membranes with machine learning and molecular dynamics

“…28 Increase in computational power has boosted the growth of physics-based tools like molecular dynamics (MD). For example, MD simulation has been used to study polymer phase behavior 29,30 and estimate properties such as thermal conductivity, 31,32 water diffusion constant, 14 and diffusion coefficient. 33 MD simulations provide valuable information about the solvation and spatial distribution of counterions and ionic groups along the polymer backbone, which helps to explain the measured conductivity and ionic activity in experiments.…”