Nickel electroplating method adopting ionic liquid

The invention discloses a nickel electroplating method adopting an ionic liquid, aiming to solve the problems that when nickel coatings are prepared by existing electrodeposition methods, aqueous solutions usually serve as electrolytes, the technological process is complex, and meanwhile, plenty of waste liquid can be generated. The method comprises the following steps: matrix pretreatment, ionic liquid electroplating liquid preparation, nickelling and aftertreatment. Nickel coatings are prepared by carrying out electrodeposition on nickel by adopting a molten salt system of a non-aqueous solution. The nickel electroplating method has the beneficial effects that precipitation of hydrogen can be avoided, the technological process can be simplified, and meanwhile, the plating liquid can be reused, so that discharge of waste liquid can be greatly reduced; the nickel electroplating method is reasonable in design and simple in process and is convenient to operate, can achieve the effect of greatly reducing discharge of waste liquid and has important significance in reduction of industrial costs and environmental protection.