Recent Advances in Cathode Materials with Core–Shell Structures and Concentration Gradients for Advanced Sodium‐Ion Batteries

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

Published: Aug. 30, 2024

Abstract Sodium‐ion batteries (SIBs) offer excellent potential for meeting the urgent need to develop low‐cost and durable large‐scale electrical energy storage systems. However, electrochemical performance of currently available SIBs requires substantial improvement enable their practical deployment. The cathode material is one greatest factors impacting SIB performance. recent development cathodes with core–shell structures concentration gradients offers considerable promise addressing these issues limiting implementation SIBs. Therefore, this review presents primary affecting advanced materials. First, study discusses recently developed methods preparing materials, including precipitation reactions, ion‐exchange doping induction. further summarizes advances in developing layered transition‐metal oxides, poly‐anionic compounds, Prussian blue analogs, organic molecules, other gradients. Moreover, state understanding regarding Na mechanisms heterogeneous also presented. Finally, remaining major challenges restricting are discussed possible solutions provided. This enables concepts be expanded high‐capacity anodes employed alkali metal ion batteries.

Language: Английский

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Elucidating the impact of metal doping in Li_1.15(Ni_0.35Mn_0.65)_0.85O₂ cathodes using high-throughput experiments and machine learning

EES batteries., Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

To improve sustainable Li-ion cathodes, materials with high energy and low transition metal dissolution are needed. High-throughput experiments coupled to machine-learning used accelerate the design of Co-free Li-rich materials.

Language: Английский

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Promoting Reaction Kinetics and Boosting Sodium Storage Capability via Constructing Stable Heterostructures for Sodium‐Ion Batteries

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

Published: Sept. 3, 2024

Abstract Constructing heterostructures containing multiple active components is proven to be an efficient strategy for enhancing the sodium storage capability of anode materials in sodium‐ion batteries (SIBs). However, performance enhancement often attributed unclear synergistic effects among components. A comprehensive understanding reaction mechanisms on interfaces at atomic level remains elusive. Herein, carbon‐coated Fe 3 Se 4 /CoSe (Fe /CoSe‐C) material as a model featuring atomic‐scale contact synthesized. This unique heterogeneous architecture offers adjustable electronic structure, which facilitates rapid kinetics and enhances structural integrity. In situ microscopic ex spectral characterization techniques, along with theoretical simulations, confirm that heterointerface strong electric fields promotes Na + ion migration. Based solid‐state nuclear magnetic resonance (NMR) analysis, interface charge mechanism revealed, resulting enhanced specific capacity materials. When employed SIBs, /CoSe‐C electrode demonstrates excellent rate capabilities (218 mAh g −1 7 ) prolonged cycling stability (258 5 after 1000 cycles). work highlights significance engineering design rechargeable batteries.

Language: Английский

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A Na‐Free Surface Enables “Three‐In‐One” Enhancement of Structural, Interfacial and Air Stability for Sodium‐Ion Battery Cathodes

Small, Journal Year: 2024, Volume and Issue: 20(47)

Published: Aug. 13, 2024

O3-type layered oxides are regarded as one of the most promising cathode materials for sodium-ion batteries. However, multistep phase transitions, severe electrode/electrolyte parasitic reactions, and moisture sensitivity challenging their practical application because highly active Na

Language: Английский

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Insights into chemical-mechanical degradation and modification strategies of layered oxide cathode materials of sodium ion batteries

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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Breaking boundaries in O3-type NaNi1/3Fe1/3Mn1/3O2 cathode materials for sodium-ion batteries: An industrially scalable reheating strategy for superior electrochemical performance

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 102, P. 107 - 119

Published: Nov. 6, 2024

Language: Английский

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Zero-strain Co-doped Na2FeP2O7/carbon delivers superior rate capability and long-cycle stability for sodium ion batteries

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 494, P. 153230 - 153230

Published: June 17, 2024

Language: Английский

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Sodium-ion layered oxide cathode materials based on oxygen anion redox: Mechanism study, voltage hysteresis, and air stability improvement

Next Materials, Journal Year: 2025, Volume and Issue: 6, P. 100480 - 100480

Published: Jan. 1, 2025

Language: Английский

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A Methodological Study on the Analysis of Organic Matter Associated with Iron Oxides in Marine Sediments

Applied Geochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 106295 - 106295

Published: Jan. 1, 2025

Language: Английский

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Promoting Reversible Anionic Redox in Sodium-Ion Cathodes by Doping and Phase Control

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1370 - 1377

Published: March 13, 2025

Language: Английский

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