Lattice-Coherent Epitaxial Surface Engineering in Highly Stable Co-Free Ultrahigh-Ni Cathodes

Key Points

• This research aims to address surface-induced degradation in Co-free ultrahigh-Ni cathodes to extend their cycle lifespan.
• Investigated lattice-coherent epitaxial growth techniques.
• Analyzed surface stability of Co-free ultrahigh-Ni materials.
• Assessed structural integrity following cycling tests.
• Demonstrated reduced surface degradation in engineered samples.
• Enhanced cycle lifespan reported compared to standard cathodes.
• Stability improvements indicate potential for better battery performance.