Lecture curated by Alessandro Piovano, Assistant Professor (RTDA) at Politecnico di Torino, and Claudio Gerbaldi, Full Professor of Principles of Chemistry for Applied Technologies at the Politecnico di Torino.

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Single-ion polymer membranes are a type of solid electrolyte designed for use in lithium-ion batteries. Unlike traditional electrolytes that allow both cation and anion movement, single-ion membranes enable only lithium ions to migrate through the polymer matrix while the negatively charged ions remain fixed. This structure significantly enhances ionic conductivity and battery efficiency, as the movement of lithium ions is less obstructed by competing ionic species. Furthermore, these membranes improve safety by reducing leakage risks associated with liquid electrolytes and minimizing flammability. Their lightweight and flexible nature contributes to the overall performance gains in solid-state battery applications, making them promising candidates for advancing energy storage technologies.