Nanostructured Fe₃O₄/SWNT Electrode: Binder‐Free and High‐Rate Li‐Ion Anode

Abstract

Utilizing Fe3O4 nanorods as the active Li+ storage material and 5 wt% carbon single-walled nanotubes (SWNTs) as a “conductive net,” a Li-ion anode with a high reversible capacity of 1000 mAh g−1 (∼2000 mAh cm−3) at C rate is demonstrated. The electrodes exhibit high-rate capability and stable capacities of 800 mAh g−1 at 5C and ∼600 mAh g−1 at 10C.