One-Step Pyro-Synthesis of a Nanostructured Mn O /C Electrode with Long Cycle Stability for Rechargeable Lithium-Ion Batteries.

A nanostructured Mn O /C electrode was prepared by a one-step polyol-assisted pyro-synthesis without any post-heat treatments. The as-prepared Mn O /C revealed nanostructured morphology comprised of secondary aggregates formed from carbon-coated primary particles of average diameters ranging between 20 and 40 nm, as evidenced from the electron microscopy studies. The N adsorption studies reveal a hierarchical porous feature in the nanostructured electrode. The nanostructured morphology appears to be related to the present rapid combustion strategy. The nanostructured porous Mn O /C electrode demonstrated impressive electrode properties with reversible capacities of 666 mAh g at a current density of 33 mA g , good capacity retentions (1141 mAh g with 100 % Coulombic efficiencies at the 100 cycle), and rate capabilities (307 and 202 mAh g at 528 and 1056 mA g , respectively) when tested as an anode for lithium-ion battery applications.