Rare earth-Mediated Synergistic Lattice Stabilization and Interface Protection for Suppressed Phase Transition and Superior Electrochemical Performance in Ni-Rich Cathodes

Key Points

• The aim is to address the challenges faced by nickel-rich cathodes in lithium-ion batteries to enhance their performance and stability.
• Evaluation of rare earth materials for lattice stabilization in nickel-rich cathodes.
• Characterization of phase transitions and electrochemical properties under various conditions.
• Analysis of interface protection mechanisms against lattice oxygen release and TM dissolution.
• Significant reduction in lattice oxygen release during cycling operations.
• Improved electrochemical performance with enhanced capacity retention and cycle life.
• Suppression of phase transition events leading to increased structural stability.