Design and fabrication of NaFePO 4 /MWCNTs hybrid electrode material for sodium-ion battery

Watery rechargeable sodium-ion batteries are alluring as elective materials to replace conventional lithium-ion batteries for the improvement of next-generation devices due to the abundance of sodium assets. Hence, we report the NaFePO 4 /MWCNT hybrid nanocomposite for high-performance cathode material for sodium-ion batteries synthesized by a facile hydrothermal route. The structural and morphological information of the products was identified through XRD, Raman and FESEM studies. The results suggest that orthorhombic crystalline structure with P nma space group and the disk-like NaFePO 4 was consistently wrapped on the MWCNT. Furthermore, the NaFePO 4 wrapped MWCNT hybrid anode electrode show superior surface area (78 m 2 /g) and pore size (12.74 nm) than bare NaFePO 4 (78 m 2 /g; 43.44 nm). The electrochemical results divulge that the hybrid electrode showed outstanding stability and high specific capacitance. NaFePO 4 /MWCNT hybrid electrode reached discharge capacity of 90 mAhg −1 at corresponding current density of 0.1 C. Still it has maintain as 98% of retention after the 100th cycles test. The EIS further hold high electrochemical nature of the NaFePO 4 /MWCNT composite electrode than pristine NaFePO 4.