An efficient route to a hierarchical CoFe2O4@graphene hybrid films with superior cycling stability and rate capability for lithium storage

- The hierarchical CFO@GN hybrid films were synthesized by a facile one-step EPD and the subsequent thermal annealing.
- The CFO@GN electrode exhibits a stable reversible capacity of -860 mAh g-1 after 200 cycles at high current densities of 1000 mA g-1.
- The layered structure of graphene, with CFO NPs as the spacers, facilitates fast ions and electron transportation.