Selective transition metal leaching strategy for upcycling LiNi 1/3 Co 1/3 Mn 1/3 O 2 into single-crystal Li- and Mn-rich cathodes

We demonstrate selective metal leaching strategy to directly upcycle spent NMC into single-crystal LMR cathodes. Optimized Ni, Co, and Mn extraction enables scalable conversion to high-value LMR materials while recovering 80% of Co and Ni.