A critical review on Li-ion transport, chemistry and structure of ceramic–polymer composite electrolytes for solid state batteries
Name
d4cs00214h.pdf
Description
Published version
Size
4.54 MB
Format
Adobe PDF
Checksum (MD5)
b0f20b24c4aab526b054ce27591709b1
Author(s)
Sand, Sara Catherine
Rupp, Jennifer LM
Yildiz, Bilge
Date Issued
November 18, 2024
Journal
Chemical Society Reviews
Publisher
Royal Society of Chemistry
Citation
Sand, Sara Catherine, Rupp, Jennifer LM and Yildiz, Bilge. 2024. "A critical review on Li-ion transport, chemistry and structure of ceramic–polymer composite electrolytes for solid state batteries." Chemical Society Reviews, 54 (1).
Version
Final published version
Abstract
In the transition to safer, more energy-dense solid state batteries, polymer–ceramic composite electrolytes may offer a potential route to achieve simultaneously high Li-ion conductivity and enhanced mechanical stability. Despite numerous studies on the polymer–ceramic composite electrolytes, disagreements persist on whether the polymer or the ceramic is positively impacted in their constituent ionic conductivity for such composite electrolytes, and even whether the interface is a blocking layer or a highly conductive lithium ion path. This lack of understanding limits the design of effective composite solid electrolytes. By thorough and critical analysis of the data collected in the field over the last three decades, we present arguments for lithium conduction through the bulk of the polymer, ceramic, or their interface. From this analysis, we can conclude that the unexpectedly high conductivity reported for some ceramic–polymer composites cannot be accounted for by the ceramic phase alone. There is evidence to support the theory that the Li-ion conductivity in the polymer phase increases along this interface in contact with the ceramic. The potential mechanisms for this include increased free volume, decreased crystallinity, and modulated Lewis acid–base effects in the polymer, with the former two to be the more likely mechanisms. Future work in this field requires understanding these factors more quantitatively, and tuning of the ceramic surface chemistry and morphology in order to obtain targeted structural modifications in the polymer phase.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Creative Commons Attribution-Noncommercial
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1039/D4CS00214H
