ArticleACS omega2026
Phosphonate- and Phosphonic Acid-Functionalized Polycyclooctenes Enabling High Ionic Conductivity and Intrinsic Flame Retardancy in Solid-State Lithium-Ion Batteries.
Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
Polymer electrolytes are considered promising materials for next-generation solid-state lithium-ion batteries due to their enhanced safety, flexibility, and electrochemical stability compared to conventional liquid electrolytes. Nevertheless, major bottlenecks including low room-temperature ionic conductivity, poor electrode/electrolyte interfacial stability, and limited flame-retardant properties still hinder their practical applications. In the pursuit of safer and high-performance lithium-ion batteries (LIBs), polymer electrolytes with improved ionic conductivity, thermal stability, and flame retardancy are highly desirable. In this study, a novel phosphonate-functionalized polycyclooctene (PPCO) was synthesized and characterized as a solid polymer electrolyte for LIBs. The synthetic route began with a thiol-ene click reaction between cyclooctadiene and mercaptoethanol to afford a hydroxyl-functionalized monomer, which was subsequently reacted with a chlorophosphate reagent to introduce phosphonate groups. Polymerization using Grubbs' third-generation catalyst yielded a polymer bearing pendant phosphonate functionalities, PolyCOD
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