Nanosheet-shaped nickel metal by mechanochemical reduction and fabrication method of positive electrode of Ni-based alkaline storage battery using the same

摘要

The present invention relates to a nano-sheet-shaped nickel metal by mechanochemical reduction, and a method of preparing a nickel-based alkaline secondary battery using the same. More specifically, the present invention relates to a method for preparing a nickel salt mixture by mixing a nickel salt with NaBH ₄ ; Applying shear stress to the nickel salt mixture; And forming a nano-sheet-like nickel metal as a result of the shear stress applied. The method of manufacturing a nano-sheet-like nickel metal by mechanochemical reduction, . / RTI According to the present invention as described above, the nano-sheet-like nickel metal produced by the mechanochemical reduction method is added to a positive electrode made of nickel hydroxide (Ni (OH) ₂ ) powder to improve the electric conductivity (impedance spectroscopy standard) It is anticipated that the effect of suppressing the voltage drop of the anode and improving the discharge efficiency of the battery at the time of discharging is expected.