Direct Restoration of Spent LiFePO4 via Lattice Defect Correction and Nitrogen-Doped Interface Engineering.
The proliferation of spent lithium-ion batteries demands efficient, environmentally sustainable recycling technologies, yet regenerating spent cathode materials remains challenging. Here, we present a mild, scalable direct regeneration strategy for spent LiFePO4 (S-LFP) cathodes leveraging the synergistic effect of eth...