Electrochemical Performance of Porous NiO Films as Anode Material for Lithium-Ion Batteries

Abstract

Electrochemical performance of porous NiO films was investigated as anodes for lithium ion batteries. Different porous morphologies of NiO films were fabricated by the electrostatic spray deposition (ESD) technique in different spray distances. Prepared porous NiO films were assembled in a half cell using lithium metal as a counter electrode and tested by cyclic voltammetry and galvanostatic charge/discharge. The test results showed that ESD derived porous NiO films exhibited highly reversible capacities and good cycle performance. The superior electrochemical performance might be attributed to their porous structures, which provide large electrode/electrolyte contact area. The porous structured NiO film electrodes could be promising anodes for use in high-energy density lithium ion batteries.