Innovative High‐Entropy Strategy Extending Traditional Metal Substitution for Optimizing Prussian Blue Analogues in Rechargeable Batteries

SusMat, Год журнала: 2025, Номер unknown

Опубликована: Янв. 16, 2025

ABSTRACT High‐entropy materials (HEMs) possess unique properties that can be tailored for specific performance characteristics, making them suitable various battery applications. In particular, HEMs have shown significant promise in enhancing the electrochemical of Prussian blue analogues (PBAs) across systems, including sodium‐ion, potassium‐ion, lithium‐sulfur, aqueous zinc‐ion, and ammonium‐ion batteries. This article examines case studies to explore how high‐entropy strategy enhances PBA performance. It also provides an overview traditional metal substitution methods modifying two main types PBAs, is, Fe‐based Mn‐based electrode materials. Additionally, other optimization methods, such as defect modulation, surface modification, composite structures, electrolyte are discussed. Finally, delves deeply into relationship between techniques from perspectives element design enhancement, aiming provide comprehensive theoretical guidance readers.

Язык: Английский

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Cesium-doped manganese-based Prussian blue analogue as a high-efficiency cathode material for potassium-ion batteries

Journal of Energy Chemistry, Год журнала: 2024, Номер 99, С. 120 - 127

Опубликована: Июль 30, 2024

Язык: Английский

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Boosting ultralong lifespan of Fe-based Prussian blue analogs cathode via element doping and crystal water capture

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160997 - 160997

Опубликована: Фев. 1, 2025

Язык: Английский

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Ti Substitution Strategy Improves Electrochemical Performance of Na₃V₂(PO₄)₂F₃ Cathode

ACS Energy Letters, Год журнала: 2025, Номер unknown, С. 1840 - 1850

Опубликована: Март 21, 2025

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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Bilayer Mn-based Prussian blue cathode with high redox activity for boosting stable cycling in aqueous sodium-ion half/full batteries

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 684, С. 635 - 646

Опубликована: Янв. 11, 2025

Язык: Английский

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Active and passive high-entropy shell enabling high rate and durable sodium manganese hexacyanoferrate cathode for sodium ion batteries

Journal of Power Sources, Год журнала: 2025, Номер 636, С. 236577 - 236577

Опубликована: Фев. 21, 2025

Язык: Английский

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Stress Self‐Adaptive Engineering Advances the Low‐Temperature Na Storage Cycling Stability of Microsized Sn

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 25, 2025

Abstract Microsized Sn (μ‐Sn) is a promising anode material for sodium‐ion batteries that has high theoretical capacity of 847 mAh g −1 and demonstrates phase transition from β‐Sn to α‐Sn below 13 °C, enabling faster ion transport at low‐temperatures. However, it faces challenges such as considerable volume expansion during cycling, unstable solid electrolyte interphase (SEI) formation, an absence effective regulation methods. Herein, “killing three birds with one stone” strategy leveraging stress self‐adaptive engineering proposed achieve low‐temperature cycling stability in μ‐Sn. At the expense partially reversible capacity, lowering temperature increases polarization voltage μ‐Sn sodiation, resulting lower sodiation degree formation dispersed amorphous products, thereby reducing change. This relatively small expansion, compared room temperature, mitigated by high‐mechanical‐strength SEI formed preferred low‐temperature‐resistant electrolyte, suppressing chemomechanical degradation enhancing stability. The exhibits specific 680.9 after 150 cycles −30 which 6.6 times higher than 25 °C. work simple approach obtaining safe high‐performance across broad ranges.

Язык: Английский

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Degradation Mechanisms of Prussian Blue Analogues and State-of-the-Art Approaches for Stability Optimization: A Review

The Journal of Physical Chemistry C, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

Язык: Английский

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Zinc hexacyanoferrate with open framework for efficient aqueous cobalt ions storage

Chemical Engineering Journal, Год журнала: 2024, Номер 499, С. 156480 - 156480

Опубликована: Окт. 6, 2024

Язык: Английский

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