Prussian Blue and Its Analogues for Commercializing Fast-Charging Sodium/Potassium-Ion Batteries

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 750 - 778

Published: Jan. 13, 2025

Fast-charging technology, which reduces charging time and enhances convenience, is attracting attention. Sodium-ion batteries (SIBs) potassium-ion (PIBs) are emerging as viable alternatives to lithium-ion (LIBs) due their abundant resources low cost. However, during fast discharging, the crystal structures of cathode materials in SIBs/PIBs can be damaged, negatively impacting performance, lifespan, capacity. To address this, there a need explore electrode with ultrahigh rate capabilities. Prussian Blue its analogues (PB PBAs) have shown great potential for both SIBs PIBs unique excellent electrochemical properties. This Review examines use PBAs PIBs, focusing on fast-charging (rate) performance commercialization potential. Through systematic analysis discussion, we hope provide practical guidance developing contributing advancement widespread adoption green energy technologies.

Language: Английский

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Enhancing Robustness and Charge Transfer Kinetics of Sodium-Ion Batteries through Introduction of Anionic Anchoring Separators

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Ionic transport critically dictates the performance of batteries. Here, we proposed an anion anchoring strategy for enhancing Na+ kinetics that was based on introducing a separator with positive surface potential. Besides, developed nuclear magnetic resonance-assisted Hittorf approach to address limitation traditional Bruce-Vincent itself in order accurately quantify migration dynamics anions time scale. Results indicate this effectively anchors free and increases proportion solvent-separated ion pairs bulk, reduces cation transfer energy barrier at anode, mitigates parasitic reactions cathode. The symmetric Na||Na cells efficiently operate over 1600 h, Na||Na3V2(PO4)3 show stable cycling under limited Na excess lean electrolyte conditions. assembled HC||Na3V2(PO4)3 pouch achieve density up 225.7 W h kg-1. Our offers new option high-energy long-cycle sodium-ion

Language: Английский

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Recent Progress on Organic Liquid Electrolyte for High‐Temperature Sodium Batteries

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

Published: Feb. 26, 2025

Abstract Sodium batteries are considered promising candidates for large‐scale energy storage systems due to abundant sodium resources and low costs. However, suffer from serious transition metal dissolution, undesirable side reactions, increased thermal runaway risk at elevated operation temperatures. Electrolyte, as a key component of batteries, is closely related temperature tolerance. Herein, we focus on recent achievements in organic liquid electrolyte high‐temperature batteries. First, the failure mechanisms discussed Subsequently, introduce components summarize effective optimization strategies including salt selection, concentration regulation, solvents optimization, additives. Finally, further directions proposed. It believed that this review can provide whole picture insight into design

Language: Английский

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Tunable Platform Capacity of Metal–Organic Frameworks via High-Entropy Strategy for Ultra-Fast Sodium Storage

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: March 26, 2025

Abstract Precise regulation of the platform capacity/voltage electrode materials contributes to efficient operation sodium-ion fast-charging devices. However, design such is still in a blank stage. Herein, based on tunable metal–organic frameworks, we have designed novel material system—two-dimensional high-entropy frameworks (HE-MOFs), which exhibits unique properties sodium storage and vital importance for realizing batteries. Furthermore, found that effect can regulate electronic structure, migration environment, active sites, thereby meeting requirements Impressively, HE-MOFs maintains reversible specific capacity 89 mAh g −1 at current density 20 A . It presents an ideal voltage plateau approximately 0.5 V, its increased 122.7 , far superior Mn-MOFs (with no capacity). This helps reduce safety hazards during process demonstrates great application value fields batteries capacitors. Our research findings broken barriers non-conductive MOFs as energy materials, enhanced understanding voltage, paved way realization high-security

Language: Английский

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Interlayer Cationic Defect Engineering in Lamellar Vanadate Cathodes Enables Ultralong-Lifespan Magnesium-Ion Batteries

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 2052 - 2060

Published: April 2, 2025

Language: Английский

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