Tailoring the electronic structure of the NaTi2(PO4)3 anode for high-performing sodium-ion batteries via defect engineering

Defect engineering was used to address the poor electronic conductivity of NaTi 2 (PO 4 ) 3 . Sufficient V O promotes the localization of Ti1, Ti2, and P1 cations, while delocalizes O atoms, which boosts Na storage efficiency and rapid diffusion kinetics.