Dynamic delocalization of stress in brittle battery positive electrode active materials by shape-memory polymer nanocoating

Nature Nanotechnology, Published online: 23 July 2026; doi:10.1038/s41565-026-02224-y Nanocoating of brittle positive electrode active materials with an ionically conductive polymer enables efficient operation of non-aqueous lithium metal coin cells at specific currents up to 2 A g−1.