Understanding the Catalytic Kinetics of Polysulfide Redox Reactions on Transition Metal Compounds in Li–S Batteries

ACS Nano, Год журнала: 2022, Номер 16(10), С. 15734 - 15759

Опубликована: Окт. 12, 2022

Because of their high energy density, low cost, and environmental friendliness, lithium–sulfur (Li–S) batteries are one the potential candidates for next-generation energy-storage devices. However, they have been troubled by sluggish reaction kinetics insoluble Li2S product capacity degradation because severe shuttle effect polysulfides. These problems overcome introducing transition metal compounds (TMCs) as catalysts into interlayer modified separator or sulfur host. This review first introduces mechanism redox reactions. The methods studying TMC in Li–S provided. Then, recent advances TMCs (such oxides, sulfides, selenides, nitrides, phosphides, carbides, borides, heterostructures) some helpful design modulation strategies highlighted summarized. At last, future opportunities toward presented.

Язык: Английский

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Sulfur Reduction Reaction in Lithium–Sulfur Batteries: Mechanisms, Catalysts, and Characterization

Advanced Energy Materials, Год журнала: 2022, Номер 12(44)

Опубликована: Сен. 18, 2022

Abstract Lithium–sulfur batteries are one of the most promising alternatives for advanced battery systems due to merits extraordinary theoretical specific energy density, abundant resources, environmental friendliness, and high safety. However, sluggish sulfur reduction reaction (SRR) kinetics results in poor utilization, which seriously hampers electrochemical performance Li–S batteries. It is critical reveal underlying mechanisms accelerate SRR kinetics. Herein, issues reviewed. The conversion pathways initially introduced give an overview SRR. Subsequently, recent advances catalyst materials that can summarized detail, including carbon, metal compounds, metals, single atoms. Besides, various characterization approaches discussed, be divided into three categories: measurements, spectroscopic techniques, calculations. Finally, conclusion outlook part gives a summary proposes several key points future investigations on activities. This review provide cutting‐edge insights

Язык: Английский

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Strategies toward High-Loading Lithium–Sulfur Batteries

ACS Energy Letters, Год журнала: 2022, Номер 8(1), С. 116 - 150

Опубликована: Ноя. 22, 2022

A high sulfur loading is an essential prerequisite for the practical application of lithium–sulfur batteries. However, it will inevitably exacerbate shuttling effect and slow down polysulfide conversion kinetics. To obtain desirable electrochemical performance at a level loading, adsorption catalysis dual strategies are widely reported to solve severe sluggish reaction kinetics issues. This review mainly summarizes research on batteries with (>5 mg cm–2) based adsorption–catalysis promotion strategies. Specifically, we principle technical challenges recent advancements in electrode materials design, as well potential approaches suggestions constructing next-generation loading. provide guidance energy density power under offer better reference researchers choose adsorbents catalysts.

Язык: Английский

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Catalytic effect in Li-S batteries: From band theory to practical application

Materials Today, Год журнала: 2022, Номер 57, С. 84 - 120

Опубликована: Июнь 9, 2022

Язык: Английский

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Recent advances in modified commercial separators for lithium–sulfur batteries

Journal of Materials Chemistry A, Год журнала: 2023, Номер 11(15), С. 7833 - 7866

Опубликована: Янв. 1, 2023

Lithium–sulfur batteries (LSBs) are one of the most promising next-generation because they have higher theoretical capacities, lower cost, and smaller environmental impact than lithium-ion (LIBs).

Язык: Английский

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Engineering Cooperative Catalysis in Li–S Batteries

Advanced Energy Materials, Год журнала: 2023, Номер 13(26)

Опубликована: Июнь 6, 2023

Abstract Lithium–sulfur (Li–S) batteries are regarded to be one of the most promising next‐generation owing merits high theoretical capacity and low cost. However, aprotic S electrochemistry is hampered by shuttling effect sluggish conversion soluble lithium polysulfides (LiPSs). Various electrocatalysts have been designed optimize kinetics LiPSs. Heteroatom doping or polar catalyst incorporation plays an important role remedy these shortcomings. Here, cooperative catalytic effects engendered heteroatom codoping engineering, catalyst/heteroatom composite strategy, integrating polar‐metal‐based material design summarized. First, principles on conductive interface described in detail. Moreover, a systematic investigation electrocatalytic characterization techniques that establish bridge between solid–liquid macroscopic electrochemical performance highlighted, providing more scientific guidance for design. In conclusion, stemming from current achievements, future directions targeting high‐energy‐density Li–S commercialization proposed.

Язык: Английский

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Rechargeable Metal-Sulfur Batteries: Key Materials to Mechanisms

Chemical Reviews, Год журнала: 2024, Номер 124(8), С. 4935 - 5118

Опубликована: Апрель 10, 2024

Rechargeable metal-sulfur batteries are considered promising candidates for energy storage due to their high density along with natural abundance and low cost of raw materials. However, they could not yet be practically implemented several key challenges: (i) poor conductivity sulfur the discharge product metal sulfide, causing sluggish redox kinetics, (ii) polysulfide shuttling, (iii) parasitic side reactions between electrolyte anode. To overcome these obstacles, numerous strategies have been explored, including modifications cathode, anode, electrolyte, binder. In this review, fundamental principles challenges first discussed. Second, latest research on is presented discussed, covering material design, synthesis methods, electrochemical performances. Third, emerging advanced characterization techniques that reveal working mechanisms highlighted. Finally, possible future directions practical applications This comprehensive review aims provide experimental theoretical guidance designing understanding intricacies batteries; thus, it can illuminate pathways progressing high-energy-density battery systems.

Язык: Английский

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Metal-organic framework-based catalysts for lithium-sulfur batteries

Coordination Chemistry Reviews, Год журнала: 2022, Номер 475, С. 214879 - 214879

Опубликована: Окт. 15, 2022

Язык: Английский

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Design of ZnSe-CoSe heterostructure decorated in hollow N-doped carbon nanocage with generous adsorption and catalysis sites for the reversibly fast kinetics of polysulfide conversion

Journal of Energy Chemistry, Год журнала: 2023, Номер 86, С. 135 - 145

Опубликована: Июль 20, 2023

Язык: Английский

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In Situ Reconstruction of Electrocatalysts for Lithium–Sulfur Batteries: Progress and Prospects

Advanced Functional Materials, Год журнала: 2023, Номер 33(33)

Опубликована: Май 1, 2023

Abstract The current research of Li–S batteries primarily focuses on increasing the catalytic activity electrocatalysts to inhibit polysulfide shuttling and enhance redox kinetics. However, stability is largely neglected, given premise that they are stable over extended cycles. Notably, reconstruction during electrochemical reaction process has recently been proposed. Such in situ inevitably leads varied electrocatalytic behaviors, such as sites, selectivity, activity, amounts sites. Therefore, a crucial prerequisite for design highly effective an in‐depth understanding variation active sites influence factors which not achieved fundamental summary. This review comprehensively summarizes recent advances behaviors different process, mainly including metal nitrides, oxides, selenides, fluorides, metals/alloys, sulfides. Moreover, unexplored issues major challenges chemistry summarized prospected. Based this review, new perspectives offered into true batteries.

Язык: Английский

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