Ultrasound-assisted Acid Leaching Recovery of Spent LiCoO2 Cathode Materials
Ultrasound-assisted recovery of a valuable metal Co from waste lithium-ion battery cathode material is used to achieve ef-ficient leaching of valuable metals.The degree of influence of leaching conditions such as ultrasonic power on the leaching effi-ciency of Co in LiCoO2 and the interaction between reaction conditions were studied.The experimental results show that the leach-ing rate of Co is 97.31%under the conditions of reaction temperature of 60℃,reaction time of 60 min and ultrasonic power of 250 W.The order of the influence of three experimental factors on the reaction process is reaction temperature>reaction time>ultra-sonic power;the interaction between reaction temperature and reaction time is most obvious in the leaching process of Co,the inter-action between reaction temperature and ultrasonic power is more obvious,and the interaction between ultrasonic power and reaction time is the weakest.
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