What question did this study set out to answer?

The study aims to improve voltage stability in sodium layered oxide cathodes using local structural tuning.

May 10, 2026Small1 citations

Suppressed Voltage Decay by Local Structure Tuning for High‐stability Sodium Layered Oxide Cathodes

YZYongyuan ZhouWuhan University of Technology XZXing ZhouWuhan University of Technology XLXiaowei LiuWuhan University of Technology

Key Points

The study aims to improve voltage stability in sodium layered oxide cathodes using local structural tuning.
Utilized trace-element-enabled local structural tuning to address J-T distortion.
Evaluated voltage hysteresis and decay over long cycling conditions.
Applied structural modifications to enhance performance metrics.
Achieved reduced voltage hysteresis in modified cathodes.
Notable improvements in long-cycling stability were observed.
Demonstrated enhanced voltage stability compared to traditional designs.

Abstract

(NFMO-Sc) exhibits small voltage hysteresis and voltage decay, as well as remarkable long-cycling stability. This work highlights the potential of trace-element-enabled local structural tuning as a practical strategy to alleviate J-T distortion and enhance voltage stability, offering valuable insights into the design of high-stability layered oxide cathodes for advanced SIBs.

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