A Nanocrystalline Fe(2)O(3) Film Anode Prepared by Pulsed Laser Deposition for Lithium-Ion Batteries

Nanocrystalline Fe(2)O(3) thin films are deposited directly on the conduct substrates by pulsed laser deposition as anode materials for lithium-ion batteries. We demonstrate the well-designed Fe(2)O(3) film electrodes are capable of excellent high-rate performance (510 mAh g(− 1) at high current density of 15,000 mA g(− 1)) and superior cycling stability (905 mAh g(− 1) at 100 mA g(− 1) after 200 cycles), which are among the best reported state-of-the-art Fe(2)O(3) anode materials. The outstanding lithium storage performances of the as-synthesized nanocrystalline Fe(2)O(3) film are attributed to the advanced nanostructured architecture, which not only provides fast kinetics by the shortened lithium-ion diffusion lengths but also prolongs cycling life by preventing nanosized Fe(2)O(3) particle agglomeration. The electrochemical performance results suggest that this novel Fe(2)O(3) thin film is a promising anode material for all-solid-state thin film batteries.