Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 515, P. 163777 - 163777
Published: May 14, 2025
Language: Английский
Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(13), P. 7202 - 7298
Published: Jan. 1, 2024
The growing global energy demand necessitates the development of renewable solutions to mitigate greenhouse gas emissions and air pollution. To efficiently utilize yet intermittent sources such as solar wind power, there is a critical need for large-scale storage systems (EES) with high electrochemical performance. While lithium-ion batteries (LIBs) have been successfully used EES, surging price, coupled limited supply crucial metals like lithium cobalt, raised concerns about future sustainability. In this context, potassium-ion (PIBs) emerged promising alternatives commercial LIBs. Leveraging low cost potassium resources, abundant natural reserves, similar chemical properties potassium, PIBs exhibit excellent ion transport kinetics in electrolytes. This review starts from fundamental principles structural regulation PIBs, offering comprehensive overview their current research status. It covers cathode materials, anode electrolytes, binders, separators, combining insights full battery performance, degradation mechanisms,
Language: Английский
Citations
141
ACS Nano, Journal Year: 2024, Volume and Issue: 18(20), P. 13415 - 13427
Published: May 10, 2024
Layered oxide cathode materials may undergo irreversible oxygen loss and severe phase transitions during high voltage cycling be susceptible to transition metal dissolution, adversely affecting their electrochemical performance. Here, address these challenges, we propose synergistic doping of nonmetallic elements in situ diffusion as potential solution strategies. Among them, the distribution element fluorine within material can regulated by boron, thereby suppressing manganese dissolution through surface enrichment fluorine. Furthermore, from into bulk after charging reduces energy barrier potassium ion while effectively inhibiting under voltage. The modified K0.5Mn0.83Mg0.1Ti0.05B0.02F0.1O1.9 layered exhibits a capacity 147 mAh g–1 at 50 mA long cycle life 2200 cycles 500 g–1. This work demonstrates efficacy provides valuable insights for optimizing rechargeable battery materials.
Language: Английский
Citations
36
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(29)
Published: May 6, 2024
Abstract Current potassium‐ion batteries (PIBs) are limited in safety and lifetime owing to the lack of suitable electrolyte solutions. To address these issues, herein, we report an innovative non‐flammable design strategy that leverages optimal moderate solvation phosphate‐based solvent which strikes a balance between capability salt dissociation ability, leading superior electrochemical performance. The formulated simultaneously exhibits advantages low concentration (only 0.6 M), viscosity, high ionic conductivity, oxidative stability, safety. Our also promotes formation self‐limiting inorganic‐rich interphases at anode surface, alongside robust cathode‐electrolyte interphase on iron‐based Prussian blue analogues, mitigating electrode/electrolyte side reactions preventing Fe dissolution. Notably, PIBs employing our exhibit exceptional durability, with 80 % capacity retention after 2,000 cycles high‐voltage 4.2 V coin cell. Impressively, larger scale pouch cell, it maintains over 81 its initial 1,400 1 C‐rate average Coulombic efficiency 99.6 %. This work represents significant advancement toward realization safe, sustainable, high‐performance PIBs.
Language: Английский
Citations
34
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
Citations
34
Desalination, Journal Year: 2024, Volume and Issue: 574, P. 117278 - 117278
Published: Jan. 2, 2024
Language: Английский
Citations
31
Energy storage materials, Journal Year: 2025, Volume and Issue: 75, P. 104017 - 104017
Published: Jan. 7, 2025
Language: Английский
Citations
3
Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(26), P. 10770 - 10804
Published: Jan. 1, 2024
Prussian blue and analogues have attracted increasing attention as versatile framework materials with a wide range of applications in catalysis, energy conversion storage, biomedical environmental fields.
Language: Английский
Citations
15
ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(7), P. 3536 - 3546
Published: June 28, 2024
The design of electrolytes that are compatible with graphite electrodes and incorporate flame-retardant properties in potassium-ion batteries (PIBs) can not only facilitate their commercialization but also improve the safety reliability. However, it remains challenging, particularly propylene carbonate (PC)-based electrolytes. Herein, we achieved a highly reversible K+ (de)intercalation PC-based by introducing fluoroethers. We identified strength interactions formed between fluoroethers (e.g., 1,1,2,2-tetrafluoroethy-2,2,3,3-tetrafluoropropyl ether (HFE), 1,1,2,2-tetrafluoroethyl 2,2,2-trifluoroethyl (TFTFE)) PC heteronuclear overhauser effect spectroscopy. find interaction HFE is stronger, which significantly weaken K+-PC interaction, contributing to endowing electrolyte nonflammable features. kinetic thermodynamic K+-solvent-anion complexes proposed interfacial model elucidate electrode stability, enabling as-designed sulfur show high performance. This discovery offers fresh perspective for designing advancing PIBs beyond.
Language: Английский
Citations
15
Energy storage materials, Journal Year: 2024, Volume and Issue: 68, P. 103371 - 103371
Published: March 27, 2024
Language: Английский
Citations
14
Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(29)
Published: May 6, 2024
Abstract Current potassium‐ion batteries (PIBs) are limited in safety and lifetime owing to the lack of suitable electrolyte solutions. To address these issues, herein, we report an innovative non‐flammable design strategy that leverages optimal moderate solvation phosphate‐based solvent which strikes a balance between capability salt dissociation ability, leading superior electrochemical performance. The formulated simultaneously exhibits advantages low concentration (only 0.6 M), viscosity, high ionic conductivity, oxidative stability, safety. Our also promotes formation self‐limiting inorganic‐rich interphases at anode surface, alongside robust cathode‐electrolyte interphase on iron‐based Prussian blue analogues, mitigating electrode/electrolyte side reactions preventing Fe dissolution. Notably, PIBs employing our exhibit exceptional durability, with 80 % capacity retention after 2,000 cycles high‐voltage 4.2 V coin cell. Impressively, larger scale pouch cell, it maintains over 81 its initial 1,400 1 C‐rate average Coulombic efficiency 99.6 %. This work represents significant advancement toward realization safe, sustainable, high‐performance PIBs.
Language: Английский
Citations
14