Synergizing Phase Engineering and Site-selective Substitution Through Rational Design of High-Entropy Layered Oxide Cathode Enables Air-Stable and Long-life Sodium-ion Batteries

Nazir Ahmad; Shao Wang; Lina Yang; Mingyu Cheng; Qingling Guo; Ye Shanshan; Shahid Ali; Jing Xia; Wenxiu He; Genqiang Zhang

doi:10.1039/d5ee07341c

January 1, 2026Energy & Environmental Science

Synergizing Phase Engineering and Site-selective Substitution Through Rational Design of High-Entropy Layered Oxide Cathode Enables Air-Stable and Long-life Sodium-ion Batteries

View Full Paper

Ask AI

Bookmark

Share

Key Points

To address commercialization challenges of P2-Na0.67Ni0.33Mn0.67O2 cathodes in sodium-ion batteries caused by phase transitions and degradation.
Applied rational design techniques to develop high-entropy layered oxide cathodes.
Examined phase stability and moisture sensitivity of the cathodes.
Evaluated performance in relation to charging and discharging cycles.
Achieved enhanced stability with reduced phase transitions at high voltage.
Showed improved resistance to Mn3+ degradation during discharge.
Demonstrated air-stability, potentially increasing battery life.

Implication

Investigates air-stable sodium-ion batteries, suggesting improvements in longevity and safety.

Abstract

P2-Na0.67Ni0.33Mn0.67O2 cathodes face commercialization barriers since irreversible P2-O2 phase transitions when charged above 4.0 V and the Mn3+ degradation if discharged to 2.0 V, as well as the moisture sensitivity,...

Discussion

No takes yet. Share an insight, caveat, or question.

Cite This Study

Ahmad et al. (2026) studied this question.

synapsesocial.com/papers/6a23bc2a71a5da9775e77927 https://doi.org/10.1039/d5ee07341c

View Full Paper

Ask AI

Bookmark

Share

Synergizing Phase Engineering and Site-selective Substitution Through Rational Design of High-Entropy Layered Oxide Cathode Enables Air-Stable and Long-life Sodium-ion Batteries

Key Points

Implication

Abstract

Discussion

Cite This Study

Synergizing Phase Engineering and Site-selective Substitution Through Rational Design of High-Entropy Layered Oxide Cathode Enables Air-Stable and Long-life Sodium-ion Batteries

Key Points

Implication

Abstract

Discussion

Cite This Study

Keep reading

Keep reading