Image: Uni Münster, Michael Möller
By ESS News
A new process for recycling production scrap of the dry production of lithium-ion batteries is made in the Meet Battery Research Center of the University of Münster in Germany.
With conventional battery production, active cathode materials are mixed in a slurry with solvents and coated on an aluminum power collector. This process uses the solvent N-Methyl-2-pyrrolidone (NMP) and polyvinylideen fluoride (PvdF) as a binder. The coated electrode must then undergo an energy-intensive drying process and the evaporated solvent must be recovered through an extensive process.
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