Recent Advances in High‐Entropy Layered Oxide Cathode Materials for Alkali Metal‐Ion Batteries

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 29, 2024

Abstract Since the electrochemical de/intercalation behavior is first detected in 1980, layered oxides have become most promising cathode material for alkali metal‐ion batteries (Li + /Na /K ; AMIBs) owing to their facile synthesis and excellent theoretical capacities. However, inherent drawbacks of unstable structural evolution sluggish diffusion kinetics deteriorate performance, limiting further large‐scale applications. To solve these issues, novel strategy high entropy has been widely applied oxide cathodes AMIBs recent years. Through multielement synergy stabilization effects, high‐entropy (HELOs) can achieve adjustable activity enhanced stability. Herein, basic concepts, design principles, methods HELO are introduced systematically. Notably, it explores detail improvements on limitations oxides, highlighting latest advances materials field AMIBs. In addition, introduces advanced characterization calculations HELOs proposes potential future research directions optimization strategies, providing inspiration researchers develop areas energy storage conversion.

Язык: Английский

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Layered-Structured Sodium-Ion Cathode Materials: Advancements through High-Entropy Approaches

ACS Energy Letters, Год журнала: 2024, Номер unknown, С. 5096 - 5119

Опубликована: Сен. 26, 2024

Язык: Английский

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Achieving Ultra‐Fast and Stable Sodium‐Ion Batteries Through Deep Activation of Low‐Spin Iron in Prussian Blue

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 27, 2025

Abstract Prussian blue analogs (PBAs) are promising cathode materials for sodium‐ion batteries (SIBs) due to their high theoretical capacity, abundant iron resources, and simple synthesis. However, practical implementation is limited by [Fe(CN)₆] vacancies crystal water, which compromise structural stability hinder the redox activity of low‐spin (Fe LS ). Herein, a modulation strategy through activating Fe site introducing Cu 2+ Zn in iron‐based PBA adopted. Na₁.₅₅Cu₀.₀₅₃Zn₀.₀₆₀₈Fe₀.₈₉[Fe(CN)₆]₀.₉₄□₀.₀₆·1.80H₂O (CZ‐FeFe), successfully synthesized using co‐precipitation. The initial capacity CZ‐FeFe dramatically enhanced (from 0.48 0.80 e − ), verified quasi‐in situ magnetic characterization. Theoretical calculations show improved electron transport ion diffusion CZ‐FeFe. Simultaneously, incorporation also beneficial reducing vacancies, minimizing slowing phase transition between monoclinic cubic structure, leading superior long‐cycling stability. As result, exhibits specific 144.7 mAh g −1 at 1 C, exceptional rate performance, remarkable long‐term (77.21% retention after 2500 cycles 10 C). full‐cell performance further confirms activation 0.21 0.52 along with improvements cycling

Язык: Английский

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Structural evolution mechanisms and design strategies of layered cathodes for sodium-ion batteries

Next Energy, Год журнала: 2025, Номер 7, С. 100241 - 100241

Опубликована: Янв. 27, 2025

Язык: Английский

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Progress and Perspective of High‐Entropy Strategy Applied in Layered Transition Metal Oxide Cathode Materials for High‐Energy and Long Cycle Life Sodium‐Ion Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 7, 2024

Abstract Layered transition metal oxide (LTMO) cathode materials of sodium‐ion batteries (SIBs) have shown great potential in large‐scale energy storage applications owing to their distinctive periodic layered structure and 2D ion diffusion channels. However, several challenges hindered widespread application, including phase complexities, interface instability, susceptibility air exposure. Fortunately, an impactful solution has emerged the form a high‐entropy doping strategy employed research. Through implementation doping, LTMOs can overcome aforementioned limitations, thereby elevating LTMO highly competitive attractive option for next‐generation cathodes SIBs. Thus, comprehensive overview origins, definition, characteristics is provided. Additionally, associated with SIBs are explored, discussed various modification methods address these challenges. This review places significant emphasis on conducting thorough analysis research advancements about utilized Furthermore, meticulous assessment future development trajectory undertaken, heralding valuable insights design synthesis advanced materials.

Язык: Английский

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High-entropy engineering enables O3-type layered oxide with high structural stability and reaction kinetic for sodium storage

Journal of Colloid and Interface Science, Год журнала: 2025, Номер unknown, С. 137438 - 137438

Опубликована: Март 1, 2025

Язык: Английский

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High-energy and long-life O3-type layered cathode material for sodium-ion batteries

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Апрель 13, 2025

O3-type layered oxide for sodium-ion batteries have attracted significant attention owing to their low cost and high energy density. However, applications are restricted by rapid capacity decay during long-term cycling, with uneven Na+ distribution microcrack formation being key contributing factors. In this study, a customized reconstruction layer integrating fast ion conductor NaCaPO4 coating gradient Ca2+ doping is developed enhance the surface chemical mechanical stability of cathodes. The doped interphase facilitates uniform phase transformation within particles, minimizes lattice mismatch, ensures even distribution, mitigates through pinning effect. Consequently, optimized sample exhibits improved electrochemical performance robust reliability under high-voltage conditions broad temperature range (-10 50 °C). practical feasibility pouch-type full cell paired hard carbon anode demonstrated retention 82.9% after 300 cycles at 0.5 C. This scalable interface modification strategy provides valuable insights into development advanced cathode materials batteries.

Язык: Английский

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High-Entropy Approach vs. Traditional Doping Strategy for Layered Oxide Cathodes in Alkali-Metal-Ion Batteries: A Comparative Study

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104295 - 104295

Опубликована: Май 1, 2025

Язык: Английский

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Rational modulation of fluorophosphate cathode by anionic groups to reduce the polarization behavior for fast-charging sodium-ion batteries

Journal of Energy Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Сен. 1, 2024

Язык: Английский

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Cation migration of layered oxide cathodes for sodium-ion batteries: fundamental failure mechanisms and practical modulation strategies

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

We comprehensively review the research advances in cation migration of sodium layered oxides, systematically revealing fundamental mechanisms and practical modulation strategies for irreversible leading to battery failure.

Язык: Английский

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