(a) Evolution of discharge capacity and coulombic efficiency of a two-nanofluid cell with LiFePO4(1.4 g/L)-DABA/RGO (40:1) as positive and DABA/RGO (40:1) as negative electrodes. Full cell cycled at 1C. (b) 1.4 g/L of LiFePO4 DABA/RGO (40:1) solution and Triton x (0.100 mL) Super P (3 g/L) LiFePO4 (1.4 g/L) solution.