Electrochemical properties of Fe2O3 thin film fabricated by electrostatic spray deposition for lithium-ion batteries
Fe2O3 thin films are important for the fabrication of rechargeable lithium microbatteries. Thin films of Fe2O3 were prepared by the electrostatic spray deposition (ESD) technique by using iron chloride as the precursor. The thin film electrodes, without inert additives such as polymer binder and conducting material, can deliver a first discharge capacity of 912 mA h g−1 and retain a discharge capacity of 537 mA h g−1 at a current density of 200 mA g−1 to the 100th cycle. The coulombic efficiency of the Fe2O3 thin-film electrode was over 96% after several cycles.
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