Li(Mn1/3Ni1/3Fe1/3)O2-Polyaniline hybrids as cathode active material with ultra-fast charge-discharge capability for lithium batteries

► Ultra-fast charge-discharge capability is achieved for Fe based layered composites with polyaniline. ► Li(Mn1/3Ni1/3Fe1/3)O2-polyaniline composite delivered reversible capacity of ∼110 mAh g−1 at 40 C rate. ► Extraordinary performance is mainly due to drastic improvement of electronic conductivity.