Tailoring Stable PEO‐Based Electrolyte/Electrodes Interfaces via Molecular Coordination Regulating Enables 4.5 V Solid‐State Lithium Metal Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 13, 2024

Abstract Solid‐state lithium metal batteries (SSLMBs) with poly (ethylene oxide) (PEO)‐based electrolytes have increasingly become one of the most promising battery technologies due to high energy density and safety. However, adverse electrode/electrolyte interface compatibility issues hinder further application. Herein, a PEO‐based composite solid electrolyte excellent anode cathode interfacial is designed via coordination modulation strategy induced by difluorobis(oxalato)phosphate (DFBOP). By utilizing this electrolyte, robust inorganic‐rich interphase involving LiF, Li x PO y F z , P─O components in situ generated on (Li) LiNi 0.8 Co 0.1 Mn O 2 (NCM811) surfaces forceful among PEO, bis(trifluoromethanesulphonyl)imide, DFBOP subsequent adjustment front orbital levels. It contributes homogeneous deposition an effective impediment PEO oxidation decomposition at voltage, promoting superior stability. Consequently, Li‐symmetric cells modified can achieve stable cycle over 7000 h 0.2 mA cm −2 . Specially, unique organic–inorganic interpenetration network structure enables 4.5 V Li/NCM811 steadily 100 cycles, discharge capacity 215.4 mAh g −1 initial coulombic efficiency 91.23%. This research has shed light design from perspective regulation construct high‐performance SSLMBs.

Язык: Английский

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In situ formation of Li3N interlayer enhancing interfacial stability of solid-state lithium batteries

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 685, С. 595 - 603

Опубликована: Янв. 20, 2025

Язык: Английский

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PEO‐Based Solid‐State Polymer Electrolytes for Wide‐Temperature Solid‐State Lithium Metal Batteries

Small, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 26, 2024

Abstract Developing solid‐state lithium metal batteries with wide operating temperature range is important in future. Polyethylene oxide (PEO)‐based electrolytes are extensively studied for merits including superior flexibility and low glass transition temperature. However, ideal usage temperatures conventional PEO‐based between 60 65 °C, unequable degrades their electrochemical performances at high (≤25 °C ≥80 °C). Herein, modification methods of PEO low, especially wide‐temperature applications reviewed based on detailed analyses mechanisms involved its different temperatures. First, shortcomings solid due to influence pointed out. Second, existing strategies summarized detail from three aspects high, temperatures, application derivatives or chain segment treatment PEO, addition fillers, other such as reasonable regulation salts, introduction functional layers metal‐organic frameworks (MOFs) covalent organic (COFs). Finally, a summary description electrolyte research development trends provided. The review aims offer some guidance the creation wider working ranges.

Язык: Английский

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Nanowires for Solid‐State Lithium Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 14, 2024

Abstract A vital approach to accessing high‐safety and high‐energy‐density lithium batteries is develop solid‐state electrolytes (SSEs) instead of liquid electrolytes. However, lithium‐ion transport interface stability issues puzzle the construction (SSLBs). Thus, developing fast‐ionic conductors with high electrochemical performances chemical crucial SSLBs. Nanowires (NWs) possess aspect ratios for maintaining carrier along radial direction, thus being extensively employed in SSLBs enhancement ion efficiency, mechanical properties, thermostability, flame retardancy, between electrodes electrolytes, consequently boosting cycle safety In this work, advances NWs SSLBs, from rational design synthesis strategies applications composite cathodes, anode materials, SSEs are systematically reviewed. The key role mechanism SSE performance by introducing concluded detail. Finally, existing challenges anticipated prospects future development advanced nanowire‐based summarized demonstrated. This review aims provide a comprehensive understanding facilitate application

Язык: Английский

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Nanocomposite Perfluorosulfonic Acid/Montmorillonite-Na+ Polymer Membrane as Gel Electrolyte in Hybrid Supercapacitors

Gels, Год журнала: 2024, Номер 10(7), С. 452 - 452

Опубликована: Июль 10, 2024

Solid-state supercapacitors with gel electrolytes have emerged as a promising field for various energy storage applications, including electronic devices, electric vehicles, and mobile phones. In this study, nanocomposite membranes were fabricated using the solution casting method perfluorosulfonic acid (PFSA) ionomer dispersion, both without incorporation of 10 wt.% montmorillonite (MMT). MMT, natural clay known its high surface area layered structure, is expected to enhance properties supercapacitor systems. Manganese oxide, selected pseudocapacitive behavior in neutral electrolyte, was synthesized via direct co-precipitation. The materials underwent structural morphological characterization. For electrochemical evaluation, two-electrode Swagelok cell employed, featuring carbon xerogel negative electrode, manganese dioxide positive PFSA polymer membrane serving electrolyte separator. immersed 1 M Na2SO4 before testing. A comprehensive analysis hybrid cells conducted compared symmetric carbon/carbon supercapacitor. Cyclic voltammetric curves recorded, galvanostatic charge–discharge tests at temperatures (20, 40, 60 °C). PFSA/MMT exhibited highest specific capacitance maintained profile after prolonged cycling elevated temperatures, highlighting potential newly developed membrane.

Язык: Английский

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Multifunctional quasi-solid state electrolytes based on “reverse” plant cell structure for high-performance lithium metal batteries

Energy storage materials, Год журнала: 2024, Номер 72, С. 103767 - 103767

Опубликована: Сен. 1, 2024

Язык: Английский

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Surficial Regulation of LLZO for High Performance Composite Solid Electrolyte

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 2, 2025

Язык: Английский

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A Universal Strategy to Increase the Mechanical Performance of Polymer‐Inorganic Composites by Sub‐1 nm Hetero‐Nanowires

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 16, 2025

Abstract Sub‐1 nm nanowires (SNWs) with diameter near that of a single polymer chain can perform polymer‐like properties, which provides better compatibility for the combination SNWs polymers to further improve their mechanical performances. Here, Ce 2 O 3 ‐phosphomolybdic acid (CS) are synthesized flexible and viscous properties. Based on special universal method is developed fabricate polymer‐inorganic composite films by simply mixing CS various kinds (including polyimide (PI), polyvinylpyrrolidone (PVP), polyoxyethylene (PEO) polystyrene (PS)), respectively. The tensile strength elongation these significantly improved simultaneously while optical properties remain unchanged. increases 136% (CS‐PI film), 280% (CS‐PVP 256% (CS‐PEO 128% (CS‐PS film) compared pure films, reach up 55 ± 5% 9 2% 215 17 Meanwhile, functionalize final composites due designable inorganic components, as demonstration CS‐PI film used separator in Zn||Zn symmetric cells, last 430 h, almost three times longer than commercial glass fiber.

Язык: Английский

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Research on electrolyte structure and interface design for solid state Lithium–Sulfur batteries: Challenges, strategies and prospects

Journal of Power Sources, Год журнала: 2025, Номер 636, С. 236575 - 236575

Опубликована: Фев. 21, 2025

Язык: Английский

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Scalable ultrathin solid electrolyte from recycled Antheraea pernyi silk with regulated ion transport for solid-state Li–S batteries

eScience, Год журнала: 2025, Номер unknown, С. 100395 - 100395

Опубликована: Фев. 1, 2025

Язык: Английский

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