Journal Article cathode materials Li‐CO2 batteries ample interfaces catalysts closed‐loop composite polymer electrolyte direct recycling direct regeneration direct upcycling electro‐chemomechanical field evolution fast‐charging high‐voltage homogeneous high‐throughput Li‐ion transport pathway kinetic and thermodynamic lithium‐metal anodes machine learning (ML) mechanical failure piezoelectric effect solid‐state lithium batteries solution lithiation spin states spinel oxides spinel structure stalling oxygen evolution sulfur vacancies suppressing strain accumulation surface reconstruction