Navigating Solvent Chemistry and Microstructures: Towards Mechanically-enhanced Ceramic-rich Composite Electrolytes

16 August 2024, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Ultra-thin ceramic-rich solid composite electrolytes provide a safer and potentially higher energy-density alternative to liquid electrolytes used in today’s lithium-ion batteries. Producing ultra-thin composites with ceramic-like ionic conductivity requires the incorporation of a polymeric binder for enhanced ductility. In this perspective, we discuss two key aspects that must be considered when designing composite electrolytes: (1) the mechanical properties of the composite and its correlation with the ceramic and polymer microstructure, and (2) the chemistry between the ceramic electrolytes, polymers, and solvents used to process the composites. We highlight the importance of understanding (1) the ceramic structure, crystallinity, and particle size upon solvent processing and (2) the ceramic/polymer interface chemistry and its correlation with the microstructure of the composites. We present opportunities in fabricating ultra-thin support structures for composites, optimizing ceramic particle packing parameters, and routes toward mechanically enhanced, compact, composite-based solid-electrolytes.

Keywords

Composite Electrolyte
Solid-state Battery
Solvent Processing
Mechanical Properties

Comments

Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.