(603a) Network Structure in Hybrid Solid Polymer Electrolytes (Invited Talk)

Batteries are of utter importance for energy storage and reducing carbon footprint to combat global warming and foster a sustainable future of our planet. To fabricate safer and more powerful energy devices including electric vehicles, one of the grand challenges is to fabricate mechanically robust and ionic conductive solid polymer electrolytes (SPEs) that form stable interface with electrodes. We herein report the design, synthesis and characterization of hybrid electrolytes with inorganic polyhedral oligomeric silsesquioxanes (POSS) as the crosslinker. The SPEs were prepared by a facile one-pot reactions between octakis[3-(glycidyloxy)propyldimethylsiloxy]silsesquioxane and bis(3-aminopropyl) terminated poly(ethylene glycol) (PEG) in the present of bis(trifluoromethane)sulfonimide lithium salt (LiTFSI). Uniform distribution of POSS and LiTFSI in the SPEs were confirmed by SEM-BSD and SEM-EDX. These hybrid network SPEs show promising ionic conductivity, mechanical properties, and lithium dendrite growth resistance.