Dataset of "Comprehensive analysis of degradation mechanisms in 18650 Li-Ion cells under prolonged cycling conditions"

Cylindrical lithium-ion batteries (LIBs) are on of he moust common deasing of Li-ion abattery on the market. Proceses leding to its degradation are still not fuli describet due to complivcation of observation of all degradation mechanisms just by electrochemical mesurement.   This study uses various imaging techniques to analyze a commercially available cilinndrical LIB cell, with X-ray computed tomography (CT) identifying critical design flaws non-destructively. Electrochemical cycling simulates the battery lifecycle, and inert-gas transfer system allows preparation of electrode cross-sections to observe Cu deposition and disintegration of active cathode materials, as well as manufacturing errors in the electrode fabrication process..