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In situ synthesis of chemically bonded NaTi2(PO4)3/rGO 2-D nanocomposite for high-rate sodium-ion batteries

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A NaTi2(PO4)3/rGO nanocomposite was successfully synthesized using a facile microwave-assisted solvothermal method. The strong anchoring of NaTi2(PO4)3 nanoparticles on rGO substrates via chemical bonding enhanced the electrical conductivity and rate capability. The specific discharge capacity was 128.6 mAh g-1 at 0.1 C-rate and 93.7 mAh g-1 even at 50 C-rate, displaying the best rate capability compared with the ever reported NaTi2(PO4)3-based anode materials for sodium-ion batteries.

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