A Reversible Self-Assembling Solid-State Battery Electrolyte From MIT - CleanTechnica

Researchers at MIT have developed a novel self-assembling solid-state battery electrolyte that addresses key challenges in battery recyclability and sustainability. Published in a 2025 journal study, this electrolyte is made from aramid amphiphiles—molecules that self-assemble into nanoribbons through reversible, non-covalent bonds like hydrogen bonding and π–π stacking. These nanoribbons form a stable, high-performance solid electrolyte with good conductivity and mechanical strength. Crucially, the electrolyte can be fully disassembled by immersing used battery cells in a simple organic solvent, allowing the battery components to revert to their original molecular forms for easy, non-toxic recycling. This breakthrough contrasts with conventional lithium-ion batteries, which often prioritize performance over recyclability and result in complex, difficult-to-recycle waste. The MIT approach integrates recyclable chemistry from the outset, potentially enabling a circular lifecycle for solid-state batteries. While still in early stages, this innovation could significantly improve the sustainability of electric vehicle batteries by simplifying material recovery