Duplex core-shell Co@Co9S8@NSC nanocrystals for high-performance lithium-sulfur battery through synergistic capture-catalysis-conversion of polysulfide

Journal of Power Sources, Год журнала: 2025, Номер 631, С. 236310 - 236310

Опубликована: Янв. 25, 2025

Язык: Английский

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Pristine MOF Materials for Separator Application in Lithium–Sulfur Battery

Advanced Science, Год журнала: 2024, Номер 11(31)

Опубликована: Июнь 18, 2024

Abstract Lithium–sulfur (Li–S) batteries have attracted significant attention in the realm of electronic energy storage and conversion owing to their remarkable theoretical density cost‐effectiveness. However, Li–S continue face challenges, primarily severe polysulfides shuttle effect sluggish sulfur redox kinetics, which are inherent obstacles practical application. Metal‐organic frameworks (MOFs), known for porous structure, high adsorption capacity, structural flexibility, easy synthesis, emerged as ideal materials separator modification. Efficient interception/conversion ability rapid lithium‐ion conduction enabled by MOFs modified layers demonstrated batteries. In this perspective, objective is present an overview recent advancements utilizing pristine MOF modification separators The mechanisms behind enhanced electrochemical performance resulting from each design strategy explained. viewpoints crucial challenges requiring resolution also concluded Moreover, some promising concepts based on proposed enhance investigate adsorption/conversion mechanisms. These efforts expected contribute future advancement advanced

Язык: Английский

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ZIF‐67/ZIF‐8 and its Derivatives for Lithium Sulfur Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 22, 2024

Abstract Lithium–sulfur batteries (LSBs), renowned for their superior energy density and the plentiful availability of sulfur resources, are progressively emerging as focal point forthcoming storage technology. Nevertheless, they presently confront fundamental challenges including insulation its discharge product, lithium polysulfides (LiPSs) shuttle phenomenon, growth dendrites. Zeolite imidazole framework materials (ZIFs), particularly ZIF‐8 ZIF‐67, significant members metal–organic frameworks (MOFs) family. Owing to high porosity, exceptional adsorption capacity, structural tunability, straightforward synthesis process, these have demonstrated unique application potential in field LSBs. This review initially provides a comprehensive summary developmental status associated with Subsequently, it delves into an in‐depth analysis distinctive properties strategies ZIFs, particular emphasis on well composites derivatives. The systematically categorizes innovative examples design cathode structures optimization separators It also presents forward‐looking perspective insights future trajectory ZIF‐67 materials, informed by latest research advancements field.

Язык: Английский

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Electrospinning Meets Heterostructures in Lithium‐Sulfur Batteries

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 24, 2025

Abstract Lithium‐sulfur (Li‐S) batteries are recognized as a most promising energy storage technology for their high theoretical density, abundant sulfur resources, and environmental friendliness. Nonetheless, practical applications of Li‐S currently hindered by obstacles such the shuttle effect lithium polysulfides (LiPSs), sluggish reaction kinetics, formation Li dendrites. Heterostructured electrocatalysts can achieve synergistic adsorption‐catalysis LiPSs regulating component composition to accelerate electrochemical guide uniform deposition Li. Electrospinning has emerged versatile approach precise fabrication heterostructured nanomaterials, advantages including tunable composition, controlled fiber diameter, diverse pore structures, flexible morphological heterogeneous interfacial design. In this contribution, latest research progress on heterostructures constructed electrospinning is reviewed. Initially, definition outlined mechanisms promote kinetics in analyzed. Subsequently, principles influencing factors constructing based discussed. The application cathodes, separators, anodes further comprehensively Finally, issues identified, corresponding effective solutions provided. This review intended inspire design construction efficient batteries.

Язык: Английский

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Theory-guided optimization of central metal for efficient MOFs bidirectional catalysis in lithium-sulfur batteries

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 689, С. 137219 - 137219

Опубликована: Март 3, 2025

Язык: Английский

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Achieving High‐Capacity Cathode Presodiation Agent Via Triggering Anionic Oxidation Activity in Sodium Oxide

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 20, 2024

Compensating for the irreversible loss of limited active sodium (Na) is crucial enhancing energy density practical sodium-ion batteries (SIBs) full-cell, especially when employing hard carbon anode with initially lower coulombic efficiency. Introducing sacrificial cathode presodiation agents, particularly those that own potential anionic oxidation activity a high theoretical capacity, can provide additional sources compensating Na loss. Herein, Ni atoms are precisely implanted at sites within

Язык: Английский

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Hybrid double carbon layer with Co, Ni bimetal for high-performance lithium-sulfur batteries

Journal of Electroanalytical Chemistry, Год журнала: 2025, Номер 979, С. 118923 - 118923

Опубликована: Янв. 5, 2025

Язык: Английский

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Unravelling the Oxygen Evolution Mechanism of Lithium‐Rich Antifluorite Prelithiation Agent Based on Anionic Oxidation

Angewandte Chemie International Edition, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

Developing sacrificial cathode prelithiation technology to compensate for irreversible lithium loss is crucial enhancing the energy density of lithium-ion batteries. Antifluorite Li-rich Li5FeO4 (LFO) a promising agent due its high theoretical capacity (867 mAh g-1) and superior decomposition dynamic (<4.0 V vs. Li/Li+). However, oxygen evolution mechanism in LFO remains unclear, limiting application as an ideal agent. Herein, we systematically track full lifecycle footprint lattice, electrolyte solid interface (SEI). We demonstrate lattice mismatch induced by quasi-disorder rocksalt intermediate phase can activate oxidation promoting dimerization O2. Specifically, contrast O─O dimers formed within typical anionic-redox active cathodes, generates O- stabilized Li6-O configuration. Significantly, pair edge-sharing configurations transforms into superoxo dimer, which further evolves O2 via ligand-to-metal charge transfer process. Moreover, that nucleophilic intermediates threaten stability electrolytes SEI. Leveraging insights above, offer comprehensive perspectives modification agents.

Язык: Английский

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Unravelling the Oxygen Evolution Mechanism of Lithium‐Rich Antifluorite Prelithiation Agent Based on Anionic Oxidation

Angewandte Chemie, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

Abstract Developing sacrificial cathode prelithiation technology to compensate for irreversible lithium loss is crucial enhancing the energy density of lithium‐ion batteries. Antifluorite Li‐rich Li 5 FeO 4 (LFO) a promising agent due its high theoretical capacity (867 mAh g −1 ) and superior decomposition dynamic (<4.0 V vs. Li/Li + ). However, oxygen evolution mechanism in LFO remains unclear, limiting application as an ideal agent. Herein, we systematically track full lifecycle footprint lattice, electrolyte solid interface (SEI). We demonstrate lattice mismatch induced by quasi‐disorder rocksalt intermediate phase can activate oxidation promoting dimerization O 2 . Specifically, contrast O─O dimers formed within typical anionic‐redox active cathodes, generates − stabilized 6 ‐O configuration. Significantly, pair edge‐sharing configurations transforms into superoxo dimer, which further evolves via ligand‐to‐metal charge transfer process. Moreover, that nucleophilic intermediates threaten stability electrolytes SEI. Leveraging insights above, offer comprehensive perspectives modification agents.

Язык: Английский

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Lewis Acidity‐Enhanced Metal‐Organic Frameworks as High‐Efficiency Cathode Catalysts for Advanced Li‐CO₂ Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 25, 2025

Abstract Lithium‐carbon dioxide (Li‐CO₂) batteries have attracted significant attention as a potential solution to mitigate the greenhouse effect and meet demand for high energy density storage systems. Designing efficient cathodic catalysts is crucial development of high‐performance Li‐CO₂ batteries. Herein, an innovative Lewis acidity‐enhancement strategy proposed design in Li‐CO 2 These results demonstrate that metal‐organic framework (MOF) with stronger acidity exhibits significantly lower overpotential 1.27 V, compared 1.58 V MOF weaker acidity. The enhanced Mn3‐MOF accelerates both CO reduction reaction lithium carbonate decomposition, leading improved electrochemical performance, including better rate capability cycling stability. This study emphasizes critical role provides valuable insights

Язык: Английский

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