The invention discloses a method for utilizing eutecticevaporate
solvent for leaching valuable
metal in waste
lithium ion batteries and relates to the technical field of comprehensive
recovery and utilization of waste
lithium ion battery materials. The method comprises the following steps that firstly, the waste
lithium ion battery materials are added into eutecticevaporate
solvent,
ultrasonic oscillation is carried out on the condition of 20 DEG C-40 DEG C, and standing is carried out; and secondly,
slurry obtained after ultrasonic treatment is filtered, and separated to obtain a leaching solution containing the valuable
metal. The method has the beneficial effects that the eutecticevaporate
solvent is adopted for leaching the valuable
metal in the waste lithium ion batteries, ultrasonicwaves are adopted for treating a solution obtained after the eutecticevaporate solvent and the waste
lithium ion battery materials are mixed, by means of the
cavitation effect of the ultrasonic
waves,penetrating power of the eutecticevaporate solvent can be increased, the eutecticevaporate solvent can leach out the valuable metal in the waste
lithium ion battery materials in a reinforced manner,and thus the leaching efficiency and the
leaching rate of the valuable metal in the waste
lithium ion battery materials can be improved greatly.