Solid Electrolytes and Dendrite Dynamics in Solid-State Lithium–Sulfur Batteries

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

Опубликована: Фев. 15, 2025

As the demand for safer lithium batteries grows, quality of solid electrolytes, a critical component solid-state (SSLBs) construction, has become increasingly important. SSLBs typically underperform compared to conventional with liquid electrolytes. In this study, two ceramic-based composite electrolytes (CSEs) differing dispersion qualities were prepared, consisting dispersion-treated and as-received Li6.4La3Zr1.4Ta0.6O12 (LLZTO) particles within poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) matrix. These CSEs assembled sulfur cathode into lithium–sulfur (SSLSBs) assessed using electrochemical impedance spectroscopy distribution relaxation times investigate factors affecting battery performance. To clarify individual contributions anode, three-electrode configuration was employed, allowing more detailed understanding internal processes SSLSBs. Additional techniques, including current density testing, in situ optical microscopy dendrite observation, finite element simulations, utilized evaluate impact LLZTO PVDF-HFP uniformity on electrolyte cell performances. Results reveal that low-quality led uneven charge transport increased formation during cycling, significantly reducing lifespan. Importantly, while can mitigate shuttle effect, uncontrolled growth emerged as primary cause capacity decline failure batteries.

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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Hydrangea-like NiCo2O4 enable fast lithium ions transportation for high-performance reduced graphene oxide-based freestanding lithium-sulfur battery cathode

Journal of Power Sources, Год журнала: 2025, Номер 639, С. 236682 - 236682

Опубликована: Март 2, 2025

Язык: Английский

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Progresses and Perspectives of Carbon‐Free Metal Compounds‐Modified Separators for High‐Performance Lithium‐Sulfur Batteries

Small, Год журнала: 2024, Номер 20(47)

Опубликована: Авг. 28, 2024

Lithium-sulfur batteries (LSBs) have the advantages of high theoretical specific capacity, excellent energy density, abundant elemental sulfur reserves. However, LSBs is mainly limited by shuttling lithium polysulfides (LiPSs), slow reaction kinetics cathode. For solving above problems, developing high-performance battery separators, reversible Coulombic efficiency (CE) and cycle life can be effectively enhanced. Carbon-free based metal compounds are expected to highly efficient separator modifiers for a new generation virtue superior chemical adsorption strong catalytic properties lithophilicity certain extent. They give play synergistic effect their "adsorption-catalysis" sites accelerate redox LiPSs, good Li

Язык: Английский

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Application of Y-Zn-MOF derived Y2O3/ZnO@C in modification of lithium-sulfur battery separator

Journal of Energy Storage, Год журнала: 2024, Номер 101, С. 113833 - 113833

Опубликована: Сен. 23, 2024

Язык: Английский

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Separator engineering toward suppressed shuttle effect and homogenized lithium deposition in lithium−sulfur batteries

Journal of Alloys and Compounds, Год журнала: 2024, Номер 978, С. 173482 - 173482

Опубликована: Янв. 11, 2024

Язык: Английский

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Perspectives on Advanced Lithium–Sulfur Batteries for Electric Vehicles and Grid-Scale Energy Storage

Nanomaterials, Год журнала: 2024, Номер 14(12), С. 990 - 990

Опубликована: Июнь 7, 2024

Intensive increases in electrical energy storage are being driven by electric vehicles (EVs), smart grids, intermittent renewable energy, and decarbonization of the economy. Advanced lithium–sulfur batteries (LSBs) among most promising candidates, especially for EVs grid-scale applications. In this topical review, recent progress perspectives practical LSBs reviewed discussed; challenges solutions these analyzed proposed future large-scale Major shuttle effect, reaction kinetics, anodes specifically addressed, provided on basis electrodes, electrolytes, binders, interlayers, conductivity, electrocatalysis, artificial SEI layers, etc. The characterization strategies (including situ ones) parameters (e.g., cost-effectiveness, battery management/modeling, environmental adaptability) assessed crucial automotive/stationary applications (i.e., grid storage). This review will give insights into development Li–S toward applications, including storage.

Язык: Английский

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The benzothiadiazole-based COF/CNT composite as host for efficient Li-S batteries with excellent cycling stability

Chemical Engineering Journal, Год журнала: 2024, Номер 496, С. 154074 - 154074

Опубликована: Июль 21, 2024

Язык: Английский

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Nitrogen‐Doped Carbon and Metal‐Nitrogen–Carbon Materials as Cathode Hosts for Li–S Batteries: Experimental Study and Mechanism Analysis

Small, Год журнала: 2024, Номер 20(47)

Опубликована: Авг. 21, 2024

Both nitrogen-doped carbon (NC) and metal-nitrogen-carbon (MNC) materials have been extensively investigated in lithium-sulfur batteries to alleviate the "shuttle effect". MNC are generally synthesized using NC as parent material, wherein nitrogen atoms serve "bridge" coordinate with metal atoms. So far, an important scientific issue has not settled: does introduction of sites into certainly enhance Li-S battery performance? In this work, derived from same precursor, a nitrogen-rich porous polymer, systematically compared cathode hosts for through theoretical calculations experimental investigation. cell sulfur host exhibits better cycle performance at low current densities (0.1 0.2C), whereas predominate higher (such 1C 2C). Based on calculation results, it is concluded that bonding promoted catalytic capability faster redox reaction kinetics, adsorption energy toward polysulfides decreased. This work provides guidance more targeted design advanced application future.

Язык: Английский

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Lewis acid-optimized hydrolysable catalytic binder with dynamic hydrogen-bonded framework for durable lithium-sulfur batteries

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160009 - 160009

Опубликована: Фев. 1, 2025

Язык: Английский

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