A Nanocrystalline Fe2O3 Film Anode Prepared by Pulsed Laser Deposition for Lithium-Ion Batteries

• Main Authors: Xiaoling Teng, Youzhi Qin, Xia Wang, Hongsen Li, Xiantao Shang, Shuting Fan, Qiang Li, Jie Xu, Derang Cao, Shandong Li
• Format: Article
• Language: English
• Published: SpringerOpen 2018-02-01
• Series: Nanoscale Research Letters
• Subjects: Lithium-ion batteries; Nanocrystalline Fe2O3; Anode material
• Online Access: http://link.springer.com/article/10.1186/s11671-018-2475-8
• ISSN: 1931-7573; 1556-276X

Abstract Nanocrystalline Fe2O3 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 Fe2O3 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 Fe2O3 anode materials. The outstanding lithium storage performances of the as-synthesized nanocrystalline Fe2O3 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 Fe2O3 particle agglomeration. The electrochemical performance results suggest that this novel Fe2O3 thin film is a promising anode material for all-solid-state thin film batteries.