THE MANUFACTURING METHOD OF NANOSHEET-SHAPED NICKEL METAL BY MECHANOCHEMICAL REDUCTION

摘要

The present invention relates to a method to manufacture a nanosheet-shaped nickel metal by mechanochemical reduction and, more specifically, relates to a method to manufacture the nanosheet-shaped nickel metal by mechanochemical reduction comprising: a step of mixing nickel salt with NaBH_4 to manufacture a nickel salt mixture; a step of applying a shear stress to the nickel salt mixture; and a step of manufacturing a nanosheet-shaped nickel metal as a result of applying the shear stress. According to the present invention, the nanosheet-shaped nickel metal manufactured by a mechanochemical reduction method is added to a positive electrode made of nickel hydroxide (Ni(OH)_2) powder to improve electrical conductivity (based on impedance spectroscopy) such that a voltage drop of the positive electrode is able to be suppressed when an electric discharge occurs, and discharge efficiency of a battery is able to be improved.