(606c) Single-Ion Conducting Crosslinked Polymer Composite Gel Electrolytes
AIChE Annual Meeting
2021
2021 Annual Meeting
Engineering Sciences and Fundamentals
Lithium and Beyond: Fundamental Advances in High Performance Batteries II
Thursday, November 11, 2021 - 1:00pm to 1:20pm
This talk will highlight our recent efforts to understand ion transport in single-ion conducting crosslinked polymer gel composite electrolytes. Crosslinked, single-ion conducting lithium polymer composite electrolytes are created by polymerizing difunctional macromonomers and ionic monomers when mixed with lithium conducting glass ceramic particles. Various chemistries of polymer chains (macromonomers) are used, and the material properties of the composite gel electrolytes are investigated after swelling the networks in various solvents. It is found via Raman spectroscopy that the presence of the ceramic particles strongly influences the association state of the tethered anions within the crosslinked network. The ceramic particles also strongly influence the mechanical properties and the ionic conductivity of the polymer gel electrolytes. A significant enhancement in ionic conductivity is observed for certain polymer-solvent-particle combinations. The complexity of the polymer-solvent-anion-particle interactions in affecting ionic conductivity of the composite gels will be discussed.