Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.292
Publication date: 16th December 2024
Widespread adoption of alkali metal ion batteries poses a challenge for the recycling industry. Efficient recovery and reuse of valuable metals from end-of-life batteries and manufacturing scrap is paramount. A novel, cost-effective, fast, and scalable with high purity electrode delamination approach, 'ice-stripping,' is proposed. An electrode is wetted with water and frozen using a cold plate, then peeled. Volume expansion and the increased cohesive strength of the ice over the electrode adhesion results in 100% delamination from the current collector and recovery of electrode coatings with minimal water use, material waste, or damage, in stark contrast to conventional high-temperature methods. Its effectiveness is illustrated with Li-ion and Na-ion battery electrodes comprised of different binder systems, and the scalability is considered for scrap. Direct recycling cases study for Na-ion, Li-ion and manufacturing scrap are presented. This innovation holds promise in meeting the escalating demand for efficient and sustainable battery recycling.
The authors acknowledge EU’s Horizon 2020-funded SIMBA project for funding.
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