German researchers develop recycling for dry-processed Li-ion batteries
Researchers at the University of Münster have developed a mechanical recycling process for production scrap from the dry processing of lithium-ion batteries. The method operates without solvents, preserves material properties, and allows the recycled cathode powder to be directly reused in electrode manufacturing.
Researchers at the University of Münster have developed a mechanical recycling process for production scrap from the dry processing of lithium-ion batteries. The method operates without solvents, preserves material properties, and allows the recycled cathode powder to be directly reused in electrode manufacturing.
From ESS News
A new process for recycling production scrap from the dry manufacturing of lithium-ion batteries has been created at the MEET Battery Research Center of the University of Münster in Germany.
In conventional battery production, active cathode materials are mixed into a slurry with solvents and coated onto an aluminum current collector. This process uses the solvent N-methyl-2-pyrrolidone (NMP) and polyvinylidene fluoride (PVdF) as a binder. Afterwards, the coated electrode must undergo an energy-intensive drying process, and the evaporated solvent must be recovered via an elaborate process.
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