Dataset of "Impact of Direct Recycling Treatments by Argon and Nitrogen Calcination on the Electrochemical Performance of Graphite Recovered from Aged LiFePO4 Battery"

Recycling spent graphite anodes is hindered by lattice degradation and thick SEI buildup. Here, we present a direct regeneration method via optimized high-temperature calcination. The thermal treatment heals structural defects and converts residual SEI into a protective carbon layer. This approach offers a scalable pathway for upcycling degraded battery anodes.