The invention discloses a preparation method of a layered ferronickel
hydroxide electrode. The preparation method comprises the following steps: preparing a solution containing a
ferric salt, a
nickel salt and
urea, wherein the concentration of the
ferric salt is 1-100mmol / L, the concentration of the
nickel salt is 1-100mmol / L and the concentration of the
urea is 2-200mmol / L; and placing a substrate into the solution containing the
ferric salt, the
nickel salt and the
urea, then placing the substrate in a hydrothermal reactor at the temperature of 60-180 DEG C, keeping the temperature for 1-20h, then washing and
drying the substrate, and carrying out
plasma treatment or high temperature
calcination treatment in a protective
atmosphere finally to obtain the layered ferronickel
hydroxide electrode. The preparation method, is lower in
reaction temperature, short in reaction time, simple in preparation process, strong in
controllability and good in
repeatability, improves the production efficiency, lowers the production cost, is green and environmental friendly and can effectively solve the problem of environmental
pollution without participation of an
organic solvent and a
toxic chemical reagent in the reaction process.