This research paper investigates the passivation, breakdown, and corrosion of aluminum (Al) current collectors in lithium-ion batteries (LIBs), focusing on their impact on battery performance. The study reveals that a passivation layer forms on the Al surface, but this layer breaks down under high charging voltages, leading to localized corrosion and capacity fade exceeding 20%. Ethylene carbonate adsorption is identified as a key factor in passivity breakdown. The findings provide a benchmark for understanding electrode corrosion in other advanced energy storage materials.
