A simple solvothermal route to synthesize graphene-modified LiFePO4 cathode for high power lithium ion batteries

► We made LiFePO4 nanoparticles with controlled size below 30 nm. ► The C-LiFePO4 nanoparticles could be efficiently embedded in graphene matrix. ► Lithium ion diffusing limitation for poor electronic conductivity can be overcome. ► No impurity ions were introduced, and possible for industrial production.