GoKawiilCornell researchers restore aging lithium-ion battery electrodes without shredding them
Cornell University scientists created a process called Direct Electrode-to-Electrode Regeneration (DEER) that revives worn EV battery electrodes by chemically stripping excess solid electrolyte interphase buildup rather than shredding cells into raw materials. Treated electrodes recovered up to 95% of original capacity and degraded more slowly than untreated batteries, and a second treatment round restored capacity to 90% even after prior regeneration.