Na3TiV(PO4)3/C nanoparticles for sodium‐ion symmetrical and full batteries

Abstract Na 3 TiV(PO 4 ) 3 /C nanoparticles are synthesized by a simple ball‐milling method and studied for sodium‐ion symmetrical and full batteries. Symmetrical battery assembled with Na 3 TiV(PO 4 ) 3 /C nanoparticles shows good structural stability and acceptable capacity. Sodium‐ion full battery exhibits an initial capacity of 200 mA h g −1 and maintains 90 mA h g −1 after 100 cycles when the presodiated commercial hard carbon is chosen as the anode. Moreover, the wide sources of raw materials and low environmental pollution mean that Na 3 TiV(PO 4 ) 3 /C nanoparticles may have certain industrial prospects.