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

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 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.

Language: Английский

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A high-rate and air-stable cathode material for sodium-ion batteries: yttrium-substituted O3-type Ni/Fe/Mn-based layered oxides

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(23), P. 13915 - 13924

Published: Jan. 1, 2024

The electrochemical properties of O3-NaNi 1/3 Fe 1/3− x Mn Y O 2 cathode materials for sodium ion batteries are significantly improved by using yttrium substitution strategy to realize the micro-modulation crystal structure.

Language: Английский

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Structural Engineering of Prussian Blue Analogues Enabling All-Climate and Ultralong Cycling Sodium-Ion Batteries

ACS Nano, Journal Year: 2024, Volume and Issue: unknown

Published: July 15, 2024

The development of cost-efficient, long-lifespan, and all-climate sodium-ion batteries is great importance for advancing large-scale energy storage but plagued by the lack suitable cathode materials. Here, we report low-cost Na-rich Mn-based Prussian blue analogues with superior rate capability ultralong cycling stability over 10,000 cycles via structural optimization electrochemically inert Ni atoms. Their thermal stability, properties, potential in full cells are investigated detail. Multiple situ characterizations reveal that outstanding performances benefit from their highly reversible three-phase transformations trimetal (Mn–Ni–Fe) synergistic effects. In addition, a high sodium diffusion coefficient low volume distortion 2.3% observed through transmission electron microscopy first-principles calculations. Our results provide insights into engineering advanced applications.

Language: Английский

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Pseudocapacitive Storage in High-Performance Flexible Batteries and Supercapacitors

Batteries, Journal Year: 2025, Volume and Issue: 11(2), P. 63 - 63

Published: Feb. 7, 2025

Attention to electrochemical energy storage (EES) devices continues grow as the demand increases for systems in and transmission of renewable energy. The expanded market requirement mobile electronics flexible electronic also calls efficient suppliers. EES applying pseudocapacitive materials generated are gaining increasing focus because they capable overcoming capacity limitations electrical double-layer capacitors (EDLCs) offsetting rate performance batteries. mechanism generally occurs on surface or near electrode materials, which could avoid slow ion diffusion process. Developing with beneficial nanostructures optimized phases supporting would efficiently improve density charging devices, such batteries supercapacitors. This review offers a detailed assessment pseudocapacitance, including classification, working mechanisms, analysis methods, promotion routes advanced applications. future challenges facing effective utilization mechanisms upcoming discussed.

Language: Английский

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Reviving Sodium Tunnel Oxide Cathodes Based on Structural Modulation and Sodium Compensation Strategy Toward Practical Sodium‐Ion Cylindrical Battery

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(41)

Published: Sept. 2, 2024

Abstract As a typical tunnel oxide, Na 0.44 MnO 2 features excellent electrochemical performance and outstanding structural stability, making it promising cathode for sodium‐ion batteries (SIBs). However, suffers from undesirable challenges such as surface residual alkali, multiple voltage plateaus, low initial charge specific capacity. Herein, an internal external synergistic modulation strategy is adopted by replacing part of the Mn with Ti to optimize bulk phase construct Ti‐containing epitaxial stabilization layer, resulting in reduced + transport kinetics improved water/air stability. Specifically, 0.85 0.15 O using water‐soluble carboxymethyl cellulose binder can realize capacity retention rate 94.30% after 1,000 cycles at 2C, stability further verified kilogram large‐up applications. In addition, taking advantage rich content Prussian blue analog (PBA), PBA‐Na 1‐x x composites are designed compensate insufficient oxide matched hard carbon achieve preparation coin full cell 18650 cylindrical battery satisfactory performance. This work enables application oxides SIBs first time promotes commercialization SIBs.

Language: Английский

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Multieffect Preoxidation Strategy to Convert Bituminous Coal into Hard Carbon for Enhancing Sodium Storage Performance

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(35), P. 46226 - 46236

Published: Aug. 22, 2024

Preoxidation is an effective strategy to inhibit the graphitization of coals during carbonization. However, single effect traditional preoxidation could barely increase surface-active sites, hindering further enhancement sodium storage. Herein, a multieffect was proposed suppress structural rearrangement and create abundant sites. Mg(NO3)2·6H2O helps introduce oxygen-containing functional groups into bituminous coal at 450 °C, which acted as cross-linking agent carbon layers promote subsequent thermal carbonization process. Besides, residue solid decomposition product MgO would react with The obtained coal-based hard contained more pseudographitic domains storage active optimized sample deliver excellent capacity 287.1 mAh g–1 20 mA g–1, well remarkable cycling stability retention 96.1% after 200 cycles 50 notable 88.9% 1000 300 g–1. This work provides practical convert low-cost advanced anodes for sodium-ion batteries (SIBs).

Language: Английский

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Cation Configuration and Structural Degradation of Layered Transition Metal Oxides in Sodium-Ion Batteries

ACS Nano, Journal Year: 2024, Volume and Issue: 18(29), P. 18834 - 18851

Published: July 12, 2024

Given the pressing depletion of lithium resources, sodium-ion batteries (SIBs) stand out as a cost-effective alternative for energy storage solutions in near future. Layered transition metal oxides (LTMOs) emerge leading cathode materials SIBs due to their superior specific capacities and abundant raw materials. Nonetheless, achieving long-term stability LTMOs remains challenge inevitable structural degradation during charge–discharge cycles. The complexity diversity cation configurations/superstructures within layers (TMO2) further complicate understanding newcomers. Therefore, it is critical summarize discuss factors available strategies enhancing LTMOs' stability. In this review, cationic configurations TMO2 are introduced from crystallographic perspective. It then identifies examines four key responsible decay, alongside impacts various modification strategies. Finally, more effective practical research approaches investigating have been proposed. work aims enhance comprehension deterioration facilitate substantial improvement cycle life density.

Language: Английский

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Modulating the structure of O3-type NaNi1/3Fe1/3Mn1/3O2 for high-performance sodium-ion batteries via Na2MoO4 reactive wetting coating combined with Mo doping and interface reconstruction

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 684, P. 148 - 158

Published: Jan. 13, 2025

Language: Английский

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Zero‐Waste Polyanion and Prussian Blue Composites toward Practical Sodium‐Ion Batteries

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Closed-loop transformation of raw materials into high-value-added products is highly desired for the sustainable development society but seldom achieved. Here, a low-cost, solvent-free and "zero-waste" mechanochemical protocol reported large-scale preparation cathode sodium-ion batteries (SIBs). This process ensures full utilization materials, effectively reduces water consumption, simplifies operating process. Benefiting from synergistic effect between cubic Prussian blue analogs (c-NFFHCF) dehydrated polyanionic sulfates (m-NFS), generated composite exhibits promising wide-temperature electrochemical performance excellent practical application potential. The m-NFS c-NFFHCF in revealed through multiple situ characterizations density functional theory calculations. proposed strategy can be scaled to kilogram-grade level, providing method value-added by-products during synthesis, advancing design low-cost SIBs.

Language: Английский

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Induction effect in oxygen-deficient vanadate for high-performance sodium ion batteries: d-p orbital coupling and vacancy-modulated cathode electrolyte interphase

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 631, P. 236218 - 236218

Published: Jan. 15, 2025

Language: Английский

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