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Fast Na+ Kinetics and Suppressed Voltage Hysteresis Enabled by a High‐Entropy Strategy for Sodium Oxide Cathodes

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June 1, 2024
Published Date

Research Abstract & Technology Focus

AbstractO3‐type layered transition metal cathodes are promising energy storage materials due to their sufficient sodium reservoir. However, sluggish sodium ions kinetics and large voltage hysteresis, which are generally associated with Na+ diffusion properties and electrochemical phase transition reversibility, drastically minimize energy density, reduce energy efficiency, and hinder further commercialization of sodium‐ion batteries (SIBs). Here, this work proposes a high‐entropy tailoring strategy through manipulating the electronic local environment within transition metal slabs to circumvent these issues. Experimental analysis combined with theoretical calculations verify that high‐entropy metal ion mixing contributes to the improved reversibility of redox reaction and O3–P3–O3 phase transition behaviors as well as the enhanced Na+ diffusivity. Consequently, the designed O3‐Na0.9Ni0.2Fe0.2Co0.2Mn0.2Ti0.15Cu0.05O2 material with high‐entropy characteristic could display a negligible voltage hysteresis (
kinetics suppressed voltage hysteresis enabled entropy
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Fast Na+ Kinetics and Suppressed Voltage Hysteresis Enabled by a High‐Entropy Strategy for Sodium Oxide Cathodes

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What is the core focus of the research titled 'Fast Na+ Kinetics and Suppressed Voltage Hysteresis Enabled by a High‐Entropy Strategy for Sodium Oxide Cathodes'?

This literature focuses on: AbstractO3‐type layered transition metal cathodes are promising energy storage materials due to their sufficient sodium reservoir. However, sluggish sodium ions kinetics and large voltage hysteresis, which are generally associated with Na+ diffusi...

Are there open-source GitHub repositories related to Fast Na+ Kinetics and Suppressed Voltage Hysteresis Enabled by a High‐Entropy Strategy for Sodium Oxide Cathodes?

Yes, open-source projects like VoltAgent/awesome-codex-subagents (A collection of 130+ specialized Codex subagents covering a wide range of development use cases.) are actively building upon these concepts.

What other academic literature is closely related to 'Fast Na+ Kinetics and Suppressed Voltage Hysteresis Enabled by a High‐Entropy Strategy for Sodium Oxide Cathodes'?

Yes, highly correlated activity was mapped. An entry titled 'Fast Na+ Kinetics and Suppressed Voltage Hysteresis Enabled by a High‐Entropy Strategy for Sodium Oxide Cathodes' discusses this: AbstractO3‐type layered transition metal cathodes are promising energy storage materials due to their sufficient sodium reservoir. However, sluggis...

Are there commercial applications of 'Fast Na+ Kinetics and Suppressed Voltage Hysteresis Enabled by a High‐Entropy Strategy for Sodium Oxide Cathodes' in market news publications?

Yes, highly correlated activity was mapped. An entry titled 'Fluorinated surface-to-bulk engineering enables high-rate and long-life sodium trititanate for sodium-ion batteries' discusses this: J. Mater. Chem. A, 2026, Accepted ManuscriptDOI: 10.1039/D6TA00608F, PaperGuangrong Zeng, Xin Jin, Fujie Li, Chao WangLayered sodium trititanate (N...

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