Critical Challenges and Optimization Strategies for Rechargeable Aluminum‐Sulfur Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 19, 2025

Abstract The increasing demand for efficient, cost‐effective energy storage systems has spurred research into alternatives to lithium‐ion batteries. Among these alternatives, aluminum‐sulfur (Al‐S) batteries have become a promising option, demonstrating noteworthy advancements over the past decade. These provide benefits such as high theoretical density, low cost, and improved safety. Nonetheless, certain fundamental electrochemical challenges, similar those encountered by other sulfur‐based batteries, persist, including slow reaction kinetics, significant polysulfide shuttling, uncontrollable dendrite growth on anode. Herein, this review offers comprehensive overview of recent related critical challenges optimization strategies rechargeable Al‐S It begins outlining development history present in current systems. Next, efficient aimed at enhancing are summarized focusing optimizing each battery component, cathode, anode, electrolyte, separator. Detailed examinations include structural features, performance, structure‐property correlations, enhancement mechanisms key breakthroughs. Finally, potential opportunities explored future This aims insightful guidance rational design high‐performance accelerate their practical large‐scale applications.

Язык: Английский

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Defect Spinel Aluminum Molybdenum Sulfide: A Dual‐Function Catalyst for Polysulfide Conversion and Aluminum Intercalation in Aluminum–Sulfur Batteries

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Март 24, 2025

Abstract Aluminum–sulfur batteries (ASBs) are regarded as promising energy storage devices due to their cost‐effectiveness and safety. However, ASBs suffer from problems of polysulfide shuttling short lifetimes, which restrict practical applications. In this work, defect spinel Aluminum molybdenum sulfide (AlMo 4 S 8 ) embedded in carbon nanotubes synthesized via solid‐state reaction is applied ASBs. The nanotube‐connected AlMo material effectively mitigates while also contributing its own capacity Besides, serves a “bi‐directional catalyst” with bimetallic active sites increase the ion transport pathway, facilitating reduction polysulfides oxidation Al 2 3 . /CNTs@S cathode exhibit excellent electrochemical performance high specific (304.3 mAh g −1 at 500 mA ). soft pack fabricated (sulfur loading 3.0 mg cm −2 maintain stable for more than 50 cycles.

Язык: Английский

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Nonsolvent-Induced Phase Separation pPAN Separators for Dendrite-Free Rechargeable Aluminum Batteries

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер unknown

Опубликована: Сен. 26, 2024

Rechargeable aluminum batteries (RAB) are a promising energy storage system with high safety, long cycle life, and low cost. However, the strong corrosiveness of chloroaluminate ionic liquid electrolytes (ILEs) severely limits development RAB separators. Herein, nonsolvent-induced phase separation strategy was applied to fabricate pPAN (poly(vinyl alcohol)-modified polyacrylonitrile) separator, which exhibits prominent chemical electrochemical stability in ILEs. The owing its uniform pore size distribution electronegativity zeta potential about -10.20 mV, can effectively inhibit growth dendrites. Benefiting from good ion conductivity (6.38 mS cm

Язык: Английский

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Emerging two-dimensional Xenes for catalyzing aluminum-sulfur batteries: A DFT study

Applied Surface Science, Год журнала: 2024, Номер unknown, С. 162201 - 162201

Опубликована: Дек. 1, 2024

Язык: Английский

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