With the accelerated ramp-up of lithium-ion battery production, a significant amount of manufacturing scraps is being produced during cell manufacturing and currently available for recycling. Recycling and reintroducing these materials into the battery supply chain are becoming increasingly important because it not only maintains a secure and healthy battery ecosystem but also enhances environmental sustainability. Particularly, electrode scraps including trimmings and rejected electrode coatings stand out as they have not been assembled into cells nor are in contact with electrolyte, suggesting that they can be directly recycled and reused. However, electrode materials are tightly adhered to metal current collectors, making it challenging for separation and recovery without damaging the electrode active materials. In this context, this presentation highlights the advancements in direct recycling of electrode scraps through several solvent-based delamination processes. The low-temperature and highly efficient recovery processes enable the separation of electrode films from their metal foils without any morphological damages or metal corrosion. In addition, remanufacturing of those anode films into new cathode and anode that exhibit similar electrochemical performance as the pristine electrodes will be presented. The discussion will shed light on how environmentally sustainable and cost-effective solvent-based recovery processes allow battery manufacturers or recyclers to directly recycle and reuse their electrode scraps safely and effectively.

Direct recycling and remanufacturing of electrode scraps

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