Stress‐Mediated Lattice Reconstruction Regenerates Spent LiFePO 4 Cathodes

transport framework. Subsequent magnesium and aluminum co-doping introduces uniform compressive prestress, enabling controlled redistribution of internal lattice stress and imparting long-range structural robustness. The regenerated LFP exhibits 94% capacity retention after 500 cycles at 1C rate, together with markedly improved structural reversibility. Life-cycle assessment confirms both economic and environmental benefits.