Carbon nano-onions (CNOs) are one of the most promising anode materials for lithium ion batteries (LIBs) because of their outstanding physicochemical properties.
A uniform distribution of doped metal and coated carbon in the as-prepared LiFePO4material is obtained. The LiFePO4delivers a discharge capacity of 166 mA h g−1at 0.1C and presents excellent rate capacity and a high potential plateau at 1C.
A novel microcuboid-shaped C–Fe3O4 assembly consisting of ultrafine nanoparticles derived from Fe–MOFs exhibits a greatly enhanced performance with high specific capacity, excellent cycling stability and good rate capability as anode materials for lithium ion batteries.