FePO4 nanoparticles embedded in a large mesoporous carbon matrix as a high-capacity and high-rate cathode for lithium-ion batteries

[Display omitted] ► Self-made nano-CaCO3 templated LMC as a novel supporting matrix for FePO4 cathode. ► The 3D porous structure of LMC is well retained in LMC–FePO4 nanohybrid. ► Its reaction kinetics of lithium insertion/extraction is significantly improved. ► Markedly higher capacities and rate capability by virtue of its structure superiority. By using large mesoporous carbon (LMC) as a novel host matrix, LMC–FePO4 nanohybrid has been synthesized through a facile homogeneous precipitation process and subsequent annealing approach. When evaluated as a cathode for lithium-ion batteries (LIBs), the LMC–FePO4 nanohybrid exhibits higher specific capacities, improved rate capability, and better cycling performance by virtue of its unique structural characteristics.