EV Car Lithium Battery Recycling Process

Release Time：2024-03-07 10:41:52 Source：Lithium Battery Recycling Machine Share：

         According to statistics, the world consumption of lithium batteries in 2000 was roughly: 500 million units. Until 2015. Lithium battery consumption reached 7 billion. Lithium batteries have a certain service life. So after reaching the service life, there will be a large number of decommissioning. In China, the amount of lithium batteries in 2020 will be more than 25 billion. The total weight is up to 500,000 tonnes. Like NMC battery material. There contains a large number of precious metals. Among them: cobalt accounts for 5-20%, nickel accounts for 5-12%, manganese accounts for 7-10%, lithium accounts for 2-5% and 7% plastic. It can be recycled and reused. It will alleviate the problem of resource shortage.
 

 
         1. Ladder utilisation and raw material recycling: retired power battery packs can be downgraded for use. Take the road of gradient utilisation. Material recycling can be carried out after the gradient utilisation. When the utilisable value of the battery is reduced to below the maintenance cost, then raw material recycling will be carried out.

         2. Physical and mechanical method: lithium battery recycling machine through the dismantling of waste lithium batteries, hammer vibration crushing, magnetic separation, airflow sorting, vibration screening, grinding and so on. The valuable materials are recycled and reused. Lithium battery recycling machine can be sorted out: black, copper, aluminium, iron shell and so on. Customised development and research can be carried out for different types of lithium batteries. If the recycling process produces exhaust gas through the flue gas purification facilities for the treatment of exhaust gas.

         3. Pyrometallurgy: Remove the organic binder in the electrode material by high temperature incineration. Oxidation and reduction of metals and compounds are carried out, and low boiling point metals and compounds are recovered in the form of condensation. After high-temperature heating of the metal through pyrolysis, chemical recovery. This method can handle large-scale and complex batteries.

         4. Wet metallurgy: the positive electrode materials of used lithium batteries can be dissolved by chemical reagent selection. The metal elements are separated through the leaching solution. It can be used together with pyrometallurgy. This kind of cost is low, and the requirement for equipment is very low. It is a more mature processing method at present.

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