Nanostructured composite FeOF-FeF_3 as anode material for Li-ion battery: the original method of pulsed high-voltage discharge

摘要

The prospects of an original method of pulsed high-voltage discharge in synthesis of nanostructured FeOF-FeF_3 composite anode for Li-ion battery has been demonstrated. Scanning electron microscopy investigation shows as-synthesized FeOF-FeF_3 consists of nanocrystallites ranging in sizes from 10 to 300 nm. Galvanostatic discharge-charge cycling of the Li/FeOF-FeF_3 half-cell at current density of 10 mA g~(-1) in the range from 3.0 to 0.005 V yields 210 mAh g~(-1) after 10 cycles. The electrochemical reaction mechanism within the Li/FeOF-FeF_3 has been investigated by the cyclic voltammetry method.