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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First-principles study of electronic properties and lithium ions conduction at graphene/Ni3S2 interface

Physica B Condensed Matter, Год журнала: 2025, Номер unknown, С. 417005 - 417005

Опубликована: Фев. 1, 2025

Язык: Английский

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Sn Nanoparticles Encapsulated in Nanoporous Nitrogen-Rich Carbon Derived from Sn-MOF@ZIF-8 for Lithium–Sulfur Battery Separators

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(16), С. 19538 - 19547

Опубликована: Авг. 14, 2024

Lithium–sulfur batteries (LSBs) have attracted considerable attention as high-energy density battery technology for applications in renewable energy storage and electric vehicles. However, challenges such low sulfur conductivity the polysulfide shuttle effect must be addressed. In this study, we prepared C–N/Sn with nanoporous channels using Sn-MOF@ZIF-8 a precursor. The resulting material has highly dispersed Sn nanoparticles encapsulated nitrogen-rich carbon three-dimensional continuous conducting framework. During preparation process, tin oxides were reduced to elemental nanoparticles, while decomposition of ZIF-8 skeleton volatilization most Zn resulted formation channels, which facilitates transport Li ions electrons inhibiting shuttling. separator exhibited an initial discharge specific capacity 925 mAhg–1 at loading 2.8 mg cm–2 0.5 C current density, remained 515 mAh g–1 after 500 cycles. Furthermore, it also demonstrated good cycling performance higher condition 5 cm–2, highlighting its potential commercialization.

Язык: Английский

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Hollow CoP-FeP cubes decorating carbon nanotubes heterostructural electrocatalyst for enhancing the bidirectional conversion of polysulfides in advanced lithium-sulfur batteries

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 676, С. 521 - 531

Опубликована: Июль 20, 2024

Язык: Английский

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Recent advances in functionalized separators for shuttle-free and dendrite-free lithium/sodium-sulfur batteries

Energy Materials, Год журнала: 2025, Номер 5(3)

Опубликована: Янв. 17, 2025

With the extremely high theoretical energy densities, secondary batteries including lithium-sulfur (Li-S) and sodium-sulfur (Na-S) are anticipated to become leading candidates among metal-sulfur batteries. However, practical density storage efficiency of Li/Na-sulfur significantly hindered by several issues: low conductivity sulfur cathodes, substantial volume changes during charge discharge cycles, shuttle effect caused metal polysulfides, uncontrollable dendrite formation on reactive alkali anodes, which also heighten safety concerns. Constructing functionalized separators is considered one most promising strategies overcome these challenges enhance performance Functionalized offer numerous advantages such as enhanced mechanical stability, bifunctionality in suppressing growth, minimal impact battery volume. comprehensive reviews relatively fewer, while related research has increased significantly. In this context, it crucial provide a review recent advances for First, offers an in-depth analysis current issues faced summarizes requirements improving Subsequently, detailed discussion presented about performances applications especially inhibition growth suppression Li-S Na-S Finally, addresses potential future directions

Язык: Английский

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MoS₂@C-Modified Separator as an Efficient Polysulfide Barrier for High-Performance Li–S Batteries

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

Опубликована: Апрель 14, 2025

Due to the promising energy density (2800 Wh kg-1) and high theoretical specific capacity (1675 mAh g-1), there has been significant research interest in lithium-sulfur batteries (LSBs) recently. However, shuttle effect sluggish redox kinetics impede commercial application of LSBs. In this work, a MoS2@C interlayer-modified polypropylene (PP) (MoS2@C-PP) separator is designed improve electrochemical performance The active sites provided by MoS2 are conducive enhancing absorption polysulfide lithium improving performance. N-doped carbon not only facilitates electrolyte penetration but also enhances ion transfer promote reaction kinetics. Additionally, formation C-S bonds significantly reduces effect. These factors largely accelerate decrease effect, thereby As consequence, LSB with MoS2@C-PP achieves discharge 860.5 g-1 at 0.5 C after 200 cycles superior rate 711.5 2 C. This work offers direction for LSBs through modification .

Язык: Английский

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Multifunctional Lithium Phytate/Carbon Nanotube Double-Layer-Modified Separators for High-Performance Lithium–Sulfur Batteries

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(30), С. 39215 - 39224

Опубликована: Июль 22, 2024

Li dendrite and the shuttle effect are two primary hindrances to commercial application of lithium-sulfur batteries (LSBs). Here, a multifunctional separator has been fabricated via successively coating carbon nanotubes (CNTs) lithium phytate (LP) onto polypropylene (PP) improve performance LSBs. The LP layer with abundant electronegative phosphate group as permselective ion sieve not only reduces polysulfide but also facilitates uniform Li+ flux through PP separator. And highly conductive CNTs on second act collector accelerate reversible conversion sulfide species. synergistic further increases electrolyte wettability reaction kinetics cells modified suppresses growth dendrite. Consequently, LSBs present much enhanced rate cyclic performance. It is expected that this study may generate an executable tactic for interface engineering industrial process

Язык: Английский

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Advanced Separator Materials for Enhanced Electrochemical Performance of Lithium–Sulfur Batteries: Progress and Prospects

Langmuir, Год журнала: 2024, Номер 40(31), С. 15996 - 16029

Опубликована: Июль 23, 2024

Lithium-sulfur (Li-S) batteries are promising energy storage devices owing to their high theoretical specific capacity and density. However, several challenges, including volume expansion, slow reaction kinetics, polysulfide shuttle effect lithium dendrite formation, hinder commercialization. Separators a key component of Li-S batteries. Traditional separators, made polypropylene polyethylene, have certain limitations that should be addressed. Therefore, this review discusses the basic properties mechanisms battery focuses on preparing different functionalized separators mitigate polysulfides. This also introduces future research trends, emphasizing potential separator functionalization in advancing technology.

Язык: Английский

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CoSe2 modified sea-cucumber-like nitrogen-doped carbon tubes composed of nanosheets as a superior electrocatalyst for polysulfide conversion in advanced Li S batteries

Journal of Energy Storage, Год журнала: 2025, Номер 110, С. 115293 - 115293

Опубликована: Янв. 5, 2025

Язык: Английский

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Dry-processing of VN quantum dots/N, O, S-doped hierarchical porous carbon electrodes with high sulfur-loading for practical lithium-sulfur batteries

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161440 - 161440

Опубликована: Март 1, 2025

Язык: Английский

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