Lithium Battery recycling method and treatment technology

The recycling process of waste lithium Battery recycling mainly includes pretreatment, secondary treatment and advanced treatment. Due to the fact that the waste battery still has some electricity, the pre-treatment process includes deep discharge, damage, and physical separation. The purpose of secondary treatment is to achieve the separation of the active material and substrate of the anode. Generally, complete separation of the two is achieved using heat treatment, organic solvent dissolution, alkaline solution dissolution, electrolysis, etc. Deep treatment mainly includes two processes: leaching and separation and purification, extracting valuable metal materials. According to the classification of extraction processes, Battery recycling methods can be mainly divided into three technologies: dry recovery, wet recovery and biological recovery.

Dry recovery refers to the direct recovery of materials or petroleum metals without using solvents or other media. The main methods used are physical separation and high-temperature pyrolysis.

The physical separation method refers to the decomposition of batteries, crushing of electrode active substances, current collectors, battery boxes, and other battery packs, filtration, magnetic separation, fine crushing, and classification to obtain valuable high content substances. The physical separation process includes crushing, screening, magnetic separation, fine crushing, and classification. In the experiment, Paper shredder with rotating and fixed leaves were used for crushing, sieves with different apertures were used to classify materials, and magnetic separation was used for further treatment, which prepared for the subsequent chemical leaching process.

The lithium Battery recycling recycling and processing equipment can obtain copper foil, graphite powder, aluminum foil and lithium cobalate powder through 18650/26650 cylindrical lithium batteries, steel/aluminum batteries, flexible packaging batteries and some heat treatment.

Lithium ion batteries mainly rely on the insertion of lithium ions into the anode cathode material for degassing and transporting energy. According to the applicable equipment and location, lithium-ion batteries are cylindrical, long rod, and square, but all consist of five parts: anode, cathode, electrolyte, organic separator, and shell.

How to recycle waste lithium batteries?

At this stage, lithium Battery recycling treatment equipment is used to physically crush the positive and negative electrode materials of lithium batteries, classify the raw material properties of copper and carbon powder, and separate and recycle the negative component raw materials of waste lithium batteries using hammer crushing, vibration screening and cyclone screening process. Common methods for recycling waste lithium batteries include chemical processes, ice metallurgy industry, and mechanical equipment physics. Compared with wet and ice methods, mechanical equipment physical methods do not use chemicals and have low energy consumption, making them an environmentally friendly and efficient method.

The core selection of lithium battery treatment equipment has the characteristics of low-carbon environmental protection, environmental sustainability, no secondary pollution, and has the economic benefits of both economic development and environmental protection. The lithium Battery recycling recycling treatment can complete the application of valuable ingredients and is harmless to harmful ingredients. The entire recycling process department has processed over 99% of the value components of scrapped lithium batteries through industrial automation, recycling efficiency, processing capacity, and lithium battery processing equipment.