Atomic-Scale Imaging of Li+ Trapping at Defects in Degraded LiCoO2.

Key Points

• This research aims to understand how lithium ions interact with defects in degraded lithium cobalt oxide.
• Utilized atomic-scale imaging techniques to analyze Li+ trapping mechanisms.
• Investigated various defect types within degraded LiCoO2 samples.
• Conducted comparative assessments of ion behavior under controlled conditions.
• Identified specific defects where Li+ ions predominantly trap, influencing material performance.
• Demonstrated a significant increase in ion mobility at defect sites, enhancing battery efficiency.
• Showed that degradation impacts Li+ distribution, potentially affecting battery lifespan.