What question did this study set out to answer?

The aim is to understand the phase stability of Na-rich P2-type layered oxides as cathodes for Na-ion batteries.

May 21, 2026Journal of Materials Chemistry A0 citations

Atomistic Insights into the Phase Stability of High-Na-Content P2 Layered Cathodes

SZShaoshuai ZuoCollaborative Innovation Center of Advanced Microstructures XTXiaoyu TangCollaborative Innovation Center of Advanced Microstructures MZMenghang ZhangCollaborative Innovation Center of Advanced Microstructures

Key Points

The aim is to understand the phase stability of Na-rich P2-type layered oxides as cathodes for Na-ion batteries.
Analyzed the structural properties and stability of Na-rich P2-type layered oxides using atomistic simulations.
Evaluated various Na compositions and their effects on phase stability and capacity.
Identified critical Na content thresholds that impact structural reversibility and capacity.
Demonstrated that increased Na content enhances the rate capability up to a certain limit.

Abstract

P2-type layered oxides are promising Na-ion cathodes for their high rate capability and structural reversibility, yet their practical capacity is limited by low Na content (~2/3 per f.u.). Synthesizing Na-rich...

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