Recent advances in potassium metal batteries: electrodes, interfaces and electrolytes

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

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Improving upon rechargeable battery technologies: On the role of high-entropy effects

Energy & Environmental Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

An overview of high-entropy strategies for batteries is provided, emphasizing their unique structural/compositional attributes and positive effects on stability performance, alongside a discussion key challenges future research directions.

Язык: Английский

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Optimized K⁺ Deposition Dynamics via Potassiphilic Porous Interconnected Mediators Coordinated by Single‐Atom Iron for Dendrite‐Free Potassium Metal Batteries

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Abstract Potassium metal batteries are emerging as a promising high‐energy density storage solution, valued for their cost‐effectiveness and low electrochemical potential. However, understanding the role of potassiphilic sites in nucleation growth remains challenging. This study introduces single‐atom iron, coordinated by nitrogen atoms 3D hierarchical porous carbon fiber (Fe─N‐PCF), which enhances ion electron transport, improves diffusion kinetics, reduces energy barriers potassium deposition. Molten infusion experiments confirm Fe─N‐PCF's strong properties, accelerating adsorption kinetics improving deposition performance. According to Scharifker‐Hills model, traditional substrates without cause instantaneous nucleation, leading dendritic growth. In contrast, integration porosity promotes uniform progressive dense deposition, confirmed dimensionless i 2 /i max versus t/t plots real‐time situ optical microscopy. Consequently, X‐ray diffraction demonstrated stable cycling over 1900 h, while Fe─N‐PCF@K||PTCDA full cell retained 69.7% its capacity after 2000 cycles (72 mAh g −1 ), with voltage hysteresis 0.876 V, confirming potential high extended cycle life, paving way future advancements technology.

Язык: Английский

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Regulation of Configurational Entropy to Realize Long Cycle Lifespan of High Entropy Alloy Anodes for Potassium Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 7, 2025

Abstract High entropy alloys (HEAs) with entropy‐driven stabilization are attractive in potassium‐ion batteries (PIBs); however, they suffer from phase segregation due to the disparity of versatile components. Confining multifarious metals into same lattice using ligands full‐coordination abilities allows for delicate control at nanoscale level and thus decreases atom diffusion. This chemical synthesis can suppress realize HEAs PIB anodes. Herein, a new MnCoNiCuZn‐based HEA nanoparticle encapsulated within nitrogen‐doped carbon (HEA‐NPs@NC) is fabricated The flexible chlorhexidine selected its long chain, large steric bulkiness, abundant neutral tetradentate donors, coordination ability. high effect “cocktail” HEA‐NPs@NC allow tailoring electrochemical functionalities, including multiple K + transport paths, good conductivity, stability. anode achieves lifespan over 3000 cycles, impressive capacity (513 mAh g −1 ), high‐rate performance (202 5 A ). ex situ characterizations density functional theory calculations elucidated acts as an “atomic composite” forms interstitial metallic solid solutions interaction constituent elements.

Язык: Английский

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Unveiling the potential of high-entropy materials toward high-energy metal batteries based on conversion reactions: synthesis, structure, properties, and beyond

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104054 - 104054

Опубликована: Янв. 1, 2025

Язык: Английский

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Strain‐Mediated Sabatier Principle‐Guided the Design of Bimetallic Catalysts for High‐Performance Li‐CO₂ Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 25, 2025

Abstract Using PdCu alloy as a model system, winged oxidized carbon nanotube‐confined Pd x Cu y bimetallic catalysts with tunable compressive strain are engineered through atomic incorporation into lattices. This strain‐mediated approach effectively modulates the d‐band center of to optimizes antibonding state occupancy for balanced adsorption landscape CO 2 activation and Li 3 decomposition that aligns Sabatier principle optimal catalytic activity. Systematic investigations reveal 0.73% in 5 optimally behavior both while maintaining weakened Li─O bonding interactions promote , achieving superior stability at high current densities (> 1100 h 1.0 A g −1 ). The findings highlight pivotal role strain‐driven electronic optimization strategy designing high‐efficiency systems advanced metal‐gas batteries.

Язык: Английский

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High-Entropy Alloy/Zinc Sulfide Heterojunction-Based Hydrogel for Eliminating Bacteria and Stimulating Osteoblast Response

ACS Biomaterials Science & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Апрель 29, 2025

Integration of a high-entropy alloy (HEA) with nanozyme activity and piezoelectric material piezoelectricity is promising strategy to develop novel biofunctional for the repair infectious bone defects. Herein, heterojunction HEA (FeMnMoRuIr) zinc sulfide (ZnS) (HEA@ZnS) synthesized that exhibits enhanced activities. Moreover, hydrogel containing zein, sodium alginate, HEA@ZnS (ZeAHZ) antibacterial properties pro-osteogenic capability fabricated. Under acidic conditions, triggered by ultrasound, effect ZeAHZ enhances peroxidase-like sonodynamic efficiency produces large amount reactive oxygen species (ROS, ·O2- ·OH) collaboratively eliminating bacteria. superoxide-like effect-enhanced catalase-like scavenge ROS (·O2- H2O2) produce due cascade reaction, which provides favorable microenvironment cell growth. Further, generates electrical stimulation significantly promotes osteoblast proliferation differentiation. This study opens up new path designing biomaterial production/elimination pro-osteogenesis stimulation, has great potential accelerating regeneration.

Язык: Английский

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Fabricating Potassiophilic Alloy Anode with Liquid Metal Enables Superior Potassium Ion Deposition

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 21, 2025

Designing three-dimensional carbon skeleton represents an effective strategy for achieving dendrite-free potassium metal batteries. Herein, a freestanding electrode composed of nanofibers loaded with potassiophilic Gallium-indium-nickel alloy nanoparticles (GaInNi@CNF), synthesized the assistance liquid (GaIn), is proposed as anode host The incorporation GaIn enables formation GaInNi nickel, thereby enhancing adsorption energy potassium. synergistic effect uniformly distributed and their surrounding edge graphite promotes uniform nucleation stable deposition. With K-GaInNi@CNF-based modified electrode, assembled K-GaInNi@CNF symmetric cells can achieve cycling over 800 h at 2 mA cm-2. Full PTCDA cathode exhibit high stability (with capacity retention rate 81.75% cycles 1 A g-1) 99% Coulombic efficiency. Additionally, cycle performance GaInNi@CNF||KPTCDA anode-free studied, 77.52% achieved 0.05 g-1 after 50 cycles. This metal-assisted method described in this study provides developing electrodes rechargeable

Язык: Английский

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Rashba effect-enhanced spin–orbit coupling in Mn1-xSnxSb2Se4 for optimized ionic and electronic kinetics for superior K+ storage

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 164340 - 164340

Опубликована: Май 1, 2025

Язык: Английский

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