Addressing Battery Waste: Creating a Recycled Lithium-Ion Battery
Addressing Battery Waste: Creating a Recycled Lithium-Ion Battery
The lithium-ion battery is becoming the dominant battery technology in consumer electronics and electric vehicle applications. The lithium-ion battery has a limited lifespan and eventually needs to be recycled. Currently, there is no clear recycling process for the reuse of rare and expensive materials, which raises significant environmental and economic issues. To solve these problems, the project aims to create a regenerative battery with the same performance as the new battery.
Creating a Recycled Lithium-Ion Battery:
The waste lithium battery recovery and treatment equipment mainly use the physical recovery method, supplemented by the "three wastes" disposal measure, has the characteristics of green, low-carbon, energy-saving, environmental protection, no secondary pollution and so on, and takes into account the economic and environmental protection benefits, not only realizes the utilization of valuable components, and the harmful components can be treated innocuously. The whole recovery process has achieved industrial automation, high recovery efficiency, strong processing capacity, an hourly capacity of 500 kg, an annual capacity of 5000 tons, waste lithium battery valuable components recovery rate of more than 90%.
Cobalt, lithium, copper, and plastics in waste lithium batteries are valuable resources with high recovery value. Therefore, the scientific and effective disposal of waste lithium batteries not only has significant environmental benefits but also has good economic benefits. The lithium battery is mainly composed of Shell, positive, negative, electrolyte, and diaphragm. Positive is formed by coating lithium cobalt powder on both sides of aluminum foil current collector by PVDF as adhesive. Negative is formed by carbon powder bonding on both sides of copper foil current collector. At present, the research on the recycling of waste lithium batteries mainly focuses on the recovery of high-value positive very, precious metals cobalt and lithium, and the separation and recovery of negative very, materials are seldom reported. In order to alleviate the problem of resource shortage and environmental pollution caused by rapid economic development, it has become a global consensus to recycle waste materials. Waste Lithium battery negative very, the copper content reaches 35% or so is one kind of widely used important production raw material, sticks to, on its carbon powder, may use as the plastic, rubber, and so on additives. Therefore, the effective separation of waste lithium batteries and their components can promote the recycling of waste lithium batteries and eliminate the corresponding environmental impact. The common recycling methods of waste lithium batteries include Hydrometallurgy, pyrometallurgy, and mechanical physics. Compared with the wet method and fire method, the mechanical physical method does not need to use chemical reagents and consumes less energy. It is an environmentally friendly method.
Description of equipment and process:
The battery is shredded by the conveyor into the first grade shredder, and the shredded material is sent to the two-stage multi-knife shredder through the Conveyor for * Times of crushing, and the material after the second time of crushing is sent to the conveyor with magnetic separation equipment, iron can be separated from the material. The sorted material is fed into the air separator by a conveyor, and the positive and negative separator paper is separated by an induced draft fan and a cyclone feeder. The sorted positive and negative separator paper is then finely crushed in a three-stage pulverizer, crush the material to about 20 Mesh. The crushed material is filtered into the cyclone by the negative pressure system and separated by two air streams to make the material of different density separate into layers, then the material is mixed with copper, aluminum, nickel, and other materials, and all the ultra-fine dust is brought into the pulse dust collector by the negative pressure system for collection. And the tail gas of the filter * will continue to be sent into the tail gas treatment equipment by the negative pressure system for air purification, making it meet the national emission standards before high-altitude emissions.