PHYSICAL AND ELECTROCHEMICAL PROPERTIES OF NANOSTRUCTURED NICKEL SULFIDE AS A CATHODE MATERIAL FOR LITHIUM ION BATTERIES

Nanostructured nickel sulfide as a cathode material for lithium ion batteries was fabricated. The large surface area of reaction between electrodes and electrolyte offers high energy density and capacity. Also, metal sulfides have high theoretical capacity. Nickel nanowires were fabricated by electrochemical deposition (ECD) using an anodic aluminum oxide (AAO) template with the diameter of 200 nm. Fabricated nickel nanowires were carried out with sulfuration treatment. The morphology and microstructure of the nanowires were characterized with FE-SEM, XRD, TEM and XPS. Nickel sulfide nanowires were applied for lithium ion batteries and charge/discharge tests were carried out with galvanostatic method.