Maricite NaFePO4/C/graphene: a novel hybrid cathode for sodium-ion batteries

For the first time we have produced maricite NaFePO4 nanoparticle entwined graphene sheets capable of delivering an outstanding capacity of 142 mA h g(-1) after 300 cycles, corresponding to similar to 98% capacity retention. This work emphasizes the importance of exploring the new structure and provides a method for the development of graphene-based cathodes.