Myoniks is dedicated to recycling solution that targets the recovery of battery materials that are contained in production scrap and end-of-life lithium-ion batteries (LIBs), materials that might otherwise be disposed of in a landfill or processed in high-emission.
Myoniks target the recovery of valuable materials from consumer electronic batteries (devices with lithium cobalt oxide (LCO) cathodes) and nickel‐rich EV and stationary storage battery chemistries (lithium‐nickel-manganese‐cobalt (NMC) cathodes). The LIB Recycling Technology is designed to recover cobalt, nickel, lithium, copper, iron, aluminium, carbon, plastics and manganese into saleable products that can be reused in the battery supply chain.
The machine shreds spent batteries of different sizes and types and then sorted the plastic and metal components from the so-called "black mass". The two-stage shredding process is followed by drying and beneficiation to separate coarse metal and plastic materials from feed for processing in the hydrometallurgical section of the plant.
Leaching is a process widely used in extractive metallurgy where ore is treated with chemicals to convert the valuable metals into soluble salts while the impurity remains insoluble. These can then be washed out and processed to give the pure metal.
There are three main separation methods, including selective precipitation, solvent extraction and ion exchange, to extract valuable metals from leachate. Chemical precipitation is widely used due to its simplicity and easy industrial application. Lithium in leachate is usually recycled in the form of Li2CO3 by selective precipitation, while cobalt, manganese and nickel can be separated by chemical precipitation or solvent extraction, which can be reused as raw materials in LIBs or other fields.
Sustainable recovery and regeneration of NCM materials from leaching solutions is the current primary trend for recovering exhausted LIBs. Standard methods to synthesise cathode materials include chemical coprecipitation, high-temperature solid phase, hydrothermal synthesis, sol-gel, microwave synthesis, and electrostatic spinning method NCM cathode materials regenerated by a hydrometallurgical process hold superior crystal morphology and rate/cycle performance. Their electrochemical performance is comparable to that of commercial NCM materials. The conventional hydrometallurgical regeneration process to prepare NCM materials is leaching liquid → coprecipitation → solid-phase synthesis at high temperatures. In the regeneration process, appropriate amounts of cobalt salts, manganese salts, nickel salts and lithium salts are added according to the stoichiometric composition of NCM materials.