Chemical Engineering Journal, Год журнала: 2024, Номер 494, С. 153087 - 153087
Опубликована: Июнь 12, 2024
Язык: Английский
Chemical Society Reviews, Год журнала: 2024, Номер 53(13), С. 7202 - 7298
Опубликована: Янв. 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,
Язык: Английский
Процитировано
146
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(28)
Опубликована: Май 7, 2024
Alkali metals (e.g. Li, Na, and K) multivalent Zn, Mg, Ca, Al) have become star anodes for developing high-energy-density rechargeable batteries due to their high theoretical capacity excellent conductivity. However, the inevitable dendrites unstable interfaces of metal pose challenges safety stability batteries. To address these issues, covalent organic frameworks (COFs), as emerging materials, been widely investigated regular porous structure, flexible molecular design, specific surface area. In this minireview, we summarize research progress COFs in stabilizing anodes. First, present origins delve into advantages based on physical/chemical properties alkali metals. Then, special attention has paid application host design anodes, artificial solid electrolyte interfaces, additives, solid-state electrolytes, separator modifications. Finally, a new perspective is provided from pore modulation, synthesis COFs.
Язык: Английский
Процитировано
41
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(28)
Опубликована: Апрель 25, 2024
Abstract The interfacial electric field (IEF) in the heterostructure can accelerate electron transport and ion migration, thereby enhancing electrochemical performance of potassium‐ion batteries (PIBs). Nevertheless, quantification modulation IEF for high‐efficiency PIB anodes currently remains a blank slate. Herein, we achieve first time tuning via amorphous carbon‐coated undifferentiated cobalt‐doped FeSe/Fe 3 Se 4 (denoted UN‐CoFe 5 /C) efficient potassium storage. Co doping increase , improving transport, promoting adsorption capacity, lowering diffusion barrier. As expected, magnitude /C is experimentally quantified as 62.84 mV, which 3.65 times larger than that (Fe /C). Benefiting from strong IEF, anode exhibits superior rate capability (145.8 mAh g −1 at 10.0 A ) long cycle lifespan (capacity retention 95.1 % over 3000 cycles 1.0 ). Furthermore, this strategy universally regulate CoSe 2 /Co 9 8 FeS /Fe 7 S heterostructures. This work provide fundamental insights into design advanced electrodes.
Язык: Английский
Процитировано
34
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Окт. 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.
Язык: Английский
Процитировано
34
Advanced Energy Materials, Год журнала: 2024, Номер unknown
Опубликована: Дек. 9, 2024
Abstract Aqueous potassium‐ion batteries (AKIBs) with mild aqueous electrolytes can significantly mitigate the safety and environmental issues raised from traditional nonaqueous batteries, positioning them as promising candidates for grid‐scale applications. Nonetheless, progression of AKIBs is currently impeded by insufficient energy density, largely attributed to limited voltage window electrolytes. This review aims introduce foundational knowledge about illustrates recent advancements in AKIBs, offers valuable perspectives on designing electrode materials optimizing To provide a systematic overview, focus following seven key sections: i) development history, ii) materials, iii) electrolyte design, iv) current collectors, v) interphase chemistry, vi) full cell configurations, vii) future prospects. Finally, constructive insights suggestions are provided higher density.
Язык: Английский
Процитировано
20
Chemical Society Reviews, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
This review explores the latest advancements in potassium metal batteries, including electrode design, interface engineering, and electrolyte optimization to suppress dendrite formation enhance cycling stability.
Язык: Английский
Процитировано
16
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 13, 2025
Abstract Single‐electron transfer, low alkali metal contents, and large‐molecular masses limit the capacity of cathodes. This study uses a cost‐effective light‐molecular‐mass orthosilicate material, K 2 FeSiO 4 , with high initial potassium content, as cathode for potassium‐ion batteries to enable transfer more than one electron. Despite limited valence change Fe ions during cycling, can undergo multiple electron transfers via successive oxygen anionic redox reactions generate reversible capacity. Although formation O‒O dimers in occur upon removing large amounts potassium, strong binding effect Si on O mitigates irreversible release voltage degradation cycling. achieves 236 mAh g −1 at 50 mA an energy density 520 Wh kg which be comparable commercial LiFePO materials. Moreover, it also exhibits 1400 stable cycles under high‐current conditions. These findings enhance potential commercialization prospects batteries.
Язык: Английский
Процитировано
4
Energy storage materials, Год журнала: 2025, Номер 75, С. 104017 - 104017
Опубликована: Янв. 7, 2025
Язык: Английский
Процитировано
3
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(35)
Опубликована: Июнь 13, 2024
Abstract Metal hexacyanoferrates (HCFs) are regarded as promising cathode materials for potassium‐ion batteries (PIBs) on account of their low cost and high energy density. However, the difficult‐to‐remove [Fe(CN) 6 ] vacancies crystal water lead to structural instability capacity deterioration well stereotype poor thermostability conventional HCFs. Herein, we report (100) face‐oriented potassium magnesium hexacyanoferrate (KMgHCF) nanoplates with crystallinity, enabling up 550 °C, high‐temperature carbon coating elimination. The as‐obtained KMgHCF/C exhibit superior storage properties, including a large reversible 84.6 mAh g −1 , voltage plateau 3.87 V, excellent long‐term cycling performance over 15000 cycles rate capability at 5 A . unprecedented stability is attributed synergistic effect highly two‐phase reaction, no water, specially exposed steady surface, protective coating. This work provides new material selection modification strategy practical application HCFs in PIBs.
Язык: Английский
Процитировано
16
Science Bulletin, Год журнала: 2024, Номер unknown
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
13