fig2

Figure 2. (A) CV results of pure LFP and pure MC cathodes at scan rate of 1.0 mV s^-1. (B) CV results of LMC@3_1 cathode at scan rate of 1.0 mV s^-1 and the comparison with that of linear weighted sum of pure LFP and pure MC cathodes. (C) Simplified model of single LFP spherical particle considering one-dimensional diffusion channel of Li-ion inside LFP, the blue ring and yellow circle meant the reacted part and unreacted part. (D) Capacity of LFP particles in pure LFP (C_LFP) and in LMC@3_1 (C_e,LFP) cathodes, and the capacity ratio of LMC@3_1 comparing with that of pure LFP (CR = 1) under various discharge rates. (E) Reaction depth of LFP particles in pure LFP and in LMC@3_1 cathodes under various discharge rates, along with the illustration of Li intercalation extent in LFP particle. (F) Linear relationship between intragranular diffusion velocity and the mass fraction of MC in LMC composite cathodes, along with the illustration of Li intercalation extent in LFP particles.