MnO₂ catalyzed hydrothermal regeneration of spent LiFePO₄ cathode materials for sustainable lithium-ion battery recycling
This paper presents a recyclable MnO₂-catalyzed hydrothermal strategy that achieves high-value regeneration of spent LiFePO₄ cathodes by synchronously compensating lithium and reducing iron to restore crystal structure, resulting in electrochemical performance comparable to pristine materials while offering a sustainable and low-cost recycling solution.