High performance of regenerated LiFePO₄ from spent cathodes <i>via</i> an <i>in situ</i> coating and heteroatom-doping strategy using amino acids

Abstract

Schematic of the regeneration mechanism of spent LiFePO 4 via a redox process induced by sucrose and amino acids. High-temperature oxidation process transforms structure, eliminates additives, and facilitates nitrogen-doped carbon layer regeneration.