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Na4MnV(PO4)3 (NMVP) is a green, cheap, and high-energy cathode material for sodium-ion batteries. However, the low electrical conductivity severely limits its sodium storage performance. Herein, we report the spray-drying synthesis of robust and highly conductive reduced graphene oxide/amorphous carbon framework encapsulated NMVP (NMVP@rGO/AC) composite microspheres. The unique dual carbon encapsulation architecture enables the NMVP@rGO/AC a high specific capacity (100 mAh g -1 at 100 mA g -1 )doi:10.1088/2515-7655/ab71ed fatcat:mythpcw7nbdz7cs65pcmeguom4