A review of graphene-decorated LiFePO4 cathode materials for lithium-ion batteries

Due to the advantages of good safety, long cycle life, and large specific capacity, LiFePO4 is considered to be one of the most competitive materials in lithium-ion batteries. But its development is limited by the shortcomings of low electronic conductivity and low ion diffusion efficiency. As an additive that can effectively improve battery performance, graphene has better physical properties than traditional carbon black materials; include excellent mechanical strength, high thermal conductivity, and electron mobility; and has been widely studied in recent years. This review introduces the LiFePO4 material and the modification methods of graphene and its derivatives on LiFePO4, discusses the problems that arise, and introduces the corresponding solutions. Finally, the future development of this composite material is discussed.Graphical abstract