A Fully Amorphous, Dynamic Cross‐Linked Polymer Electrolyte for Lithium‐Sulfur Batteries Operating at Subzero‐Temperatures

Angewandte Chemie International Edition, Год журнала: 2023, Номер 63(5)

Опубликована: Дек. 14, 2023

Solid-state lithium-sulfur batteries have shown prospects as safe, high-energy electrochemical storage technology for powering regional electrified transportation. Owing to limited ion mobility in crystalline polymer electrolytes, the battery is incapable of operating at subzero temperature. Addition liquid plasticizer into electrolyte improves Li-ion conductivity yet sacrifices mechanical strength and interfacial stability with both electrodes. In this work, we showed that by introducing a spherical hyperbranched solid Li

Язык: Английский

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Functional inorganic additives in composite solid-state electrolytes for flexible lithium metal batteries

Advanced Powder Materials, Год журнала: 2023, Номер 3(1), С. 100141 - 100141

Опубликована: Июнь 16, 2023

Flexible lithium metal batteries with high capacity and power density have been regarded as the core resources of wearable electronics. However, main challenge lies in limited electrochemical performance solid-state polymer electrolytes, which hinders further practical applications. Incorporating functional inorganic additives is an effective approach to improve performance, including increasing ionic conductivity, achieving dendrite inhibiting capability, improving safety stability. Herein, this review summarizes latest developments composite electrolytes for flexible special emphasis on their mechanisms, strategies, cutting-edge applications, particular, relationship between them discussed detail. Finally, perspective future research directions key challenges topic are outlooked.

Язык: Английский

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“Like Compatible Like” Strategy Designing Strong Cathode‐Electrolyte Interface Quasi‐Solid‐State Lithium–Sulfur Batteries

Advanced Energy Materials, Год журнала: 2023, Номер 14(4)

Опубликована: Дек. 6, 2023

Abstract Gel polymer electrolytes (GPE) have stimulated the enthusiasm to develop high‐performance quasi‐solid‐state lithium–sulfur (Li–S) batteries, but incompatibility between non‐polar sulfur cathode and polar GPE has limited its further development. Changing polarity by replacing organosulfur is expected improve cathode‐electrolyte interface compatibility. Inspired “like compatible like” strategy, a vinyl‐capped hyperbranched network (PEI‐GMA) developed that serves as backbone structure for both (G/PEI‐GMA@S) construct strong interface. High interfacial compatibility contributes accelerating electron/ion conduction superior transfer kinetics construction of stable Li–S batteries. As result, internal resistance battery significantly reduced 60%, after 400 cycles, capacity retention rate 91%, with an average decay per cycle low 0.022%. Meanwhile, strategy optimizing cathodes without design multiple materials makes batteries more competitive in practical applications. This study emphasizes importance moderating relevant constructing interface, which provides guiding principles electrode electrolyte advanced

Язык: Английский

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Solid-state polymer electrolytes in lithium batteries: latest progress and perspective

Polymer Chemistry, Год журнала: 2024, Номер 15(6), С. 473 - 499

Опубликована: Янв. 1, 2024

This review provides a comprehensive overview of solid-state polymer electrolytes performance characteristics various chemical structures such as ethers, esters, nitrile and vinylidene fluoride.

Язык: Английский

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Insight into All‐Solid‐State Li–S Batteries: Challenges, Advances, and Engineering Design

Advanced Energy Materials, Год журнала: 2024, Номер 14(38)

Опубликована: Июль 31, 2024

Abstract The advancement of conventional lithium–sulfur batteries (LSBs) is hindered by the shuttle effect and corresponding safety issues. All‐solid‐state (ASSLSBs) substitute liquid electrolytes with solid‐state (SEs) to completely isolate cathode anode, thereby effectively suppressing polysulfide migration growth while significantly enhancing energy density safety. However, development ASSLSBs accompanied several challenges such as formation Li dendrites, electrode degradation, poor interfacial wettability, sluggish reaction kinetics, etc. This review systematically summarizes recent advancements made in ASSLSBs. First, a comprehensive overview research conducted on advanced cathodes utilizing sulfur (S) lithium sulfide (Li 2 S) displayed. Subsequently, SEs are classified discussed that have been implemented Furthermore, issues interfaces anodes analyzed. Finally, based current laboratory advancements, rational design guidelines proposed for each component also presenting four practical recommendations facilitating early commercialization.

Язык: Английский

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A Nanocrystallite CuS/Nitrogen‐Doped Carbon Host Improves Redox Kinetics in All‐Solid‐State Li₂S Batteries

Advanced Energy Materials, Год журнала: 2024, Номер 14(27)

Опубликована: Май 15, 2024

Abstract All‐solid‐state Li–S batteries are a promising energy storage system that can solve the shuttle effects of polysulfides in liquid batteries. However, sluggish solid‐state reaction kinetics and low conductivity cathode materials have impeded their development. Here, N‐doped carbon embedded with CuS nanoparticles (CuSNC) is reported as host for Li 2 S all‐solid‐state addresses some these issues. Electrochemical studies, supported by combination X‐ray diffraction (XRD), photoelectron spectroscopy (XPS), absorption (XAS), electron microscopy, density functional theory (DFT) calculations reveal CuSNC provides good affinity to S. This lowers activation barrier conversion sulfur on charge, suggesting an electrocatalytic effect surface. + diffusion enhanced compared graphene. The CuSNC/Li reaches areal capacity 1.8 mAh cm −2 retention rate 94% after 100 cycles. At 1.0 mA current density, maintains stable performance over 500 cycles decay (0.05% per cycle); at higher loading, delivers 9.6 , albeit more limited cycling. study way design cathodes achieve improved better electrochemical performance.

Язык: Английский

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Toward Practical Li–S Batteries: On the Road to a New Electrolyte

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 17, 2024

Abstract The lithium–sulfur (Li–S) battery system has attracted considerable attention due to its ultrahigh theoretical energy density and promising applications. However, with the increasing demands on S loading electrolyte content, practical Li–S batteries still face several serious challenges, such as slow reaction kinetics at cathode interface, unstable anode interface reactions, undesirable crosstalk effects between anode. Traditional systems often struggle address these challenges under conditions, thereby rendering it imperative establish a new for batteries. This review first discusses necessity of establishing propose specific parameter requirements, electrolyte‐to‐sulfur mass ratio (E m /S). Subsequently, some modification strategies proposed by researchers are summarized different associated Finally, combination is reviewed, aiming reveal more effective design approaches that simultaneously multiple while providing guidance balanced article promotes development electrolytes can act reference other secondary

Язык: Английский

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Lithium Sulfur Batteries: Insights from Solvation Chemistry to Feasibility Designing Strategies for Practical Applications

Energy & environment materials, Год журнала: 2024, Номер 7(4)

Опубликована: Фев. 7, 2024

Rechargeable lithium–sulfur (Li–S) batteries, featuring high energy density, low cost, and environmental friendliness, have been dubbed as one of the most promising candidates to replace current commercial rechargeable Li‐ion batteries. However, their practical deployment has long plagued by infamous “shuttle effect” soluble Li polysulfides (LiPSs) rampant growth dendrites. Therefore, it is important specifically elucidate solvation structure in Li–S system systematically summarize feasibility strategies that can simultaneously suppress shuttle effect dendrites for applications. This review attempts achieve this goal. In review, we first introduce importance developing batteries highlight key challenges. Then, revisit working principles underscore fundamental understanding LiPSs. Next, some representative characterization techniques theoretical calculations applied characterize Afterward, overview feasible designing LiPSs Finally, conclude propose personal insights perspectives on future development We envisage timely provide inspiration build better promoting

Язык: Английский

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Rational Design of Janus Metal Atomic‐Site Catalysts for Efficient Polysulfide Conversion and Alkali Metal Deposition: Advances and Prospects

Advanced Functional Materials, Год журнала: 2024, Номер 34(25)

Опубликована: Фев. 1, 2024

Abstract Although metal–sulfur batteries (M–S batteries, M = Li, Na, K) are promising next‐generation energy‐storage devices because of ultrahigh theoretical energy density, low cost, and environmentally friendliness, their practical applications significantly hindered by the shuttle effect polysulfides growth alkali metal dendrites. These issues can be mitigated using Janus atomic‐site catalysts, which possess maximum atom utilization efficiency (≈100%), adjustable electronic structures, tailorable catalytic sites, thereby effectively improving electrochemical performance M–S batteries. In this review, recent progress development atomic‐sites on properties, synthesis, characterizations reviewed. Then, advances in catalysts intended for accelerating polysulfide conversion regulating deposition, briefly introducing working principles systematically summarized. Furthermore, a high emphasis is placed effective regulation strategies rational design Finally, current challenges future research directions also presented to develop high‐efficiency high‐energy

Язык: Английский

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Catalysis‐Driven Sulfur Conversion: From Electrolyte‐Flooded to Solid‐State Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Abstract Lithium‐sulfur (Li–S) batteries are widely recognized as highly promising energy storage devices owing to their exceptional theoretical density. However, the prevalent use of flooded electrolytes in Li–S significantly restricts To enhance density batteries, transitioning from a flooded‐electrolyte lean‐electrolyte system proves be effective. Additionally, replacing organic liquid electrolyte with solid‐state addresses associated safety concerns. Concurrently, practical application encounters numerous challenges, particularly sluggish electrochemical conversion kinetics and systems. Hence, it is imperative develop suitable catalysts tailored for various battery configurations. This review comprehensively reviews applications development strategies diverse systems, specific focus on outlook explores future direction catalysts, aiming guide rational design facilitate realization high‐energy‐density batteries.

Язык: Английский

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