Co3O4-graphene nanoflowers as anode for advanced lithium ion batteries with enhanced rate capability

The CGF composites are used as the anode in a lithium ion battery, exhibiting a significant enhancement in electrochemical performance due to the unique structure. Under the current density of 1.0 A g-1, the CGF composite could deliver reversible capacity as high as 1120.8 mAh g−1 after 250 cycles.283