Is lithium battery recycling Sustainable?

Is lithium battery recycling Sustainable?

The key to lithium battery recycling equipment is the separation of copper foil, aluminum foil and metal elements of positive materials in the negative electrode materials from the single battery, because the production cost of positive materials is higher, and there are lithium, cobalt-nickel and other metal elements in the battery pole plate, and the price of these metal elements is higher and still has an upward trend, so the recycling value is higher. The lithium battery recycling processing equipment, lithium battery sustainable recycling solutions process can handle ternary lithium power battery and lithium iron phosphate battery, through physical sorting methods, to realize the recovery of valuable metals in lithium batteries, the products are used lithium batteries in the column, shell, positive and negative electrode collector, positive and negative electrode powder materials, single battery crushing and sorting automatic line design can meet the pole piece crushing and sorting.

Concrete implement:

（1）Multi-component sorting systems

After pyrolysis, the materials are sieved, air-selected and magnetically-selected to obtain iron shell, aluminum shell, pole column, positive and negative pole pieces respectively.

（2）Dry stripping system

Positive and negative electrode sheets are stripped of the electrode powder, and the positive and negative electrode powder contained in copper and aluminum foils are dispersed by high-speed friction through the dry stripping machine to strip the positive and negative electrode powder from the surface of copper and aluminum foils, so that the copper and aluminum collide with each other during the high-speed friction and dispersal process and each of them is clumped into particles, thus obtaining the positive and negative electrode powder, copper particles, and aluminum particles.

（3）Copper and Aluminum Sorting System

Separation and collection of copper and aluminum is achieved using equipment such as specific gravity sorting machines or sifters.

（4）Gas purification systems

Exhaust gas: the source of the exhaust gas generated by the system is mainly the electrolyte gas volatilized during the battery monomer crushing process and the cracking gas generated during the high temperature pyrolysis process, through the pulse dedusting system of high temperature combustion + acute cooling + desulfurization and denitrification + alkali absorption, the treated exhaust gas meets the standard discharge, and the emission standard meets the local and national emission standards. The exhaust gas contains HF, HPO3 and other acidic gases, after alkaline washing into the circulating water, the circulating water then reacts with high calcium ion solution to generate CaF2 precipitation and a small amount of calcium phosphate.

Electrolyte and pyrolysis gas first through the cyclone dust collector to recover the pole powder, and then auxiliary natural gas for combustion, the inlet gas temperature is room temperature ~ 200 ℃, the secondary combustion temperature of 800 ~ 1300 ℃, gas residence time: 20s ~ 30s

（5）Wastewater disposal systems

Wastewater: the source of wastewater generated by the system is mainly for the exhaust gas treatment system in the water washing, alkali washing spray, spray water for recycled water, recycling in the system, to reach a certain concentration of pumped into the emergency cooling system to do the emergency cooling water, no discharged wastewater generation.

In a word, with the popularity of battery products, lithium battery recycling and processing equipment has become an important equipment in today's waste battery, waste single battery disposal process. At present, there are many different types of lithium battery recycling and processing equipment on the market, such as battery splitting equipment, battery dismantling equipment, battery recycling equipment, battery sorting equipment and battery cleaning equipment, etc., which have the advantages of automation, high efficiency and so on, and can better solve the problem of lithium battery recycling and processing.