Lithium battery wafer processing equipment
Lithium battery wafer processing equipment:
The lithium battery is mainly composed of shell, positive pole, negative pole, electrolyte, and separator. The positive pole is composed of lithium cobalt powder coated on both sides of aluminum foil current collector by PVDF, which plays the role of adhesion, the utility model is composed of carbon powder bonded on both sides of the copper foil current collector. With its high voltage, large specific capacity, long service life, and no memory effect, the lithium-ion battery has rapidly occupied the power source market of portable electronic and electrical equipment since its commercialization, and its output has been increasing year by year. The service life of lithium batteries is about 2 years. If the lithium battery is disposed of improperly, the lithium hexafluorophosphate, carbonate, and heavy metals such as cobalt and copper will pose a potential pollution threat to the environment. On the other hand, cobalt, lithium, copper, and plastics in waste lithium batteries are valuable resources with high recovery value. Therefore, the scientific and effective treatment of waste lithium batteries, not only has significant environmental benefits but also has good economic benefits.
At present, the research on the recycling of spent lithium batteries mainly focuses on the recovery of cobalt and lithium, which have a high value. 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.
Copper (about 35%) is an important raw material for lithium battery anode, and the carbon powder adhered to it can be used as additives of plastics and rubber. Therefore, the effective separation of the anode materials of the spent lithium battery can promote the recycling of the spent lithium battery 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 chemical reagent and consumes less energy. It is an environment-friendly and efficient method. Based on the structural characteristics of the negative electrode of the lithium battery, a combined process of crushing screening and air separation was used to separate and enrich the negative electrode of the lithium battery.
Lithium battery electrode treatment equipment features:
1. The utilization of copper and carbon powder in the anode materials of waste lithium batteries can be realized by the combined process of Hammer Crushing, vibration screening, and air separation
2. The mutual stripping of carbon powder and copper foil can be realized by breaking the anode material by hammer vibration, then the copper foil and carbon powder can be separated by vibrating sieving based on the difference of particle size and shape
3. For the broken particles of 0.125ー0.250 mm in diameter and lower copper grade, the effective separation between copper and carbon powder can be achieved by air separation. When the air velocity is 1.00 m/s, a good recovery effect can be achieved
4. The equipment is mainly used in the lithium-ion battery to separate the aluminum, copper, and anode materials in the scrap positive and negative plates for the purpose of recycling. The complete set of equipment operates under negative pressure without dust leakage, and the separation efficiency can reach over 90%.
Raw materials for lithium battery treatment:
Handling capacity: 500kg-1000kg/h
Application: Mobile Phone Lithium Battery, power lithium battery, positive plate, the negative plate
Components: crushing, wind separation, gravity separation, and other equipment
How it works:
The structure of positive and negative electrode plate treatment equipment for lithium battery and the material characteristics of copper and carbon powder, which are the component materials of the negative electrode of waste lithium battery, are separated and recovered by the combined process of hammer crushing, vibration screening, and air separation.
