Fabrication of graphene embedded LiFePO₄ using a catalyst assisted self assembly method as a cathode material for high power lithium-ion batteries

We have designed a unique microstructure of graphene embedded LiFePO ₄ by a catalyst assisted self assembly method as a cathode material for high power lithium-ion batteries. The stable amide bonds between LiFePO ₄ and graphene were formed by the catalyst assisted self assembly. High conductive graphene provides a fast electron transfer path, and many pores inside the structure facilitate the lithium-ion diffusion. The graphene embedded LiFePO₄ fabricated by the novel method shows enhanced cycling performance and rate-capability compared with that of carbon coated LiFePO ₄ as a cathode material for high power lithium-ion batteries.