Bilayer Artificial Solid Electrolyte Interphase with 75 GPa Young's Modulus Enable High Energy Density Lithium Metal Pouch Cells

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract The artificial solid electrolyte interphase (SEI) layer is capable of protecting lithium anodes and preventing side reactions with electrolytes. development inorganic/organic composite hybrid SEI can be considered as an efficient strategy to combine the merits high ion conductivity, mechanical modulus, flexibility. However, it still poses a great challenge solve agglomeration problem in these maintain strong interaction between metal. Herein, bilayer ultra‐thin (P‐FEM@Li) derivative from reactive fluorinated copolymer (P‐FEM) prepared shows ultra‐large Young's modulus (> 75 GPa). robust inorganic LiF‐rich provides superior ionic conductivity large while flexible organic polymer regulates ions transport compatibility. P‐FEM induced demonstrate stable cycles for more than 4400 h at 1 mA cm −2 average coulombic efficiency (CE) Li||P‐FEM@Cu 99.78% after 100 cycles. Moreover, P‐FEM@Li||NCM811 punch cell 428 Wh kg −1 exhibits high‐capacity retention 73% 175 This work new way prepare practical anodes.

Язык: Английский

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Sub‐Nano Confinement Engineering Toward Anion‐Reinforced Solvation Structure to Achieve Highly Reversible Anode‐Free Lithium Metal Batteries

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 12, 2025

Abstract The practical application of anode‐free lithium metal batteries (AFLMBs) is impeded by poor cycling performance due to sluggish Li + transport kinetics, unfavorable side reactions, and dendrite growth. To address these issues, ≈200 nm zeolitic imidazolate framework‐8 (ZIF‐8) interphase layer introduced enable highly reversible plating/stripping electrosynthesis method. ZIF‐8 with sub‐nano windows accelerates desolvation kinetics thus suppresses reactions. Further, the internal cavities serve as an anion reservoir modulate anion‐reinforced solvation structure , facilitating formation LiF‐ 3 N‐riched solid–electrolyte interphase. Thus, Li/Cu@ZIF‐8 asymmetric cell exhibits remarkable Aurbach coulombic efficiency 99.84%, Cu@ZIF‐8/LiFePO 4 AFLMB delivers impressive capacity retention (57.8%) over 400 cycles. This work highlights effectiveness AFLMBs inspires potential porous materials interval in batteries.

Язык: Английский

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Expediting solid electrolyte synthesis: Microwave-assisted wet synthesis of halogen-rich Li-argyrodite

Journal of Energy Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Regulating Interfacial Wettability for Fast Mass Transfer in Rechargeable Metal-Based Batteries

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Фев. 26, 2025

The interfacial wettability between electrodes and electrolytes could ensure sufficient physical contact fast mass transfer at the gas-solid-liquid, solid-liquid, solid-solid interfaces, which improve reaction kinetics cycle stability of rechargeable metal-based batteries (RMBs). Herein, engineering multiphase interfaces is summarized from electrolyte electrode aspects to promote interface rate durability RMBs, illustrates revolution that taking place in this field thus provides inspiration for future developments RMBs. Specifically, review presents principle macro- microscale summarizes emerging applications concerning effect on Moreover, deep insight into development provided outlook. Therefore, not only insights but also offers strategic guidance modification optimization toward stable electrode-electrolyte

Язык: Английский

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Ambient Multivariate Synthesis of ZIF-8 Nanoparticles: Optimization and Application in Li Metal Batteries

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 178578 - 178578

Опубликована: Янв. 1, 2025

Язык: Английский

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Hybrid conductive-lithophilic-fluoride triple protection interface engineering: Dendrite-free reverse lithium deposition for high-performance lithium metal batteries

Journal of Energy Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Окт. 1, 2024

Язык: Английский

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Constructing stable interface and high-performance solid polymer electrolyte by introducing MgF2 for dendrite-free Li metal batteries

Journal of Energy Storage, Год журнала: 2025, Номер 113, С. 115686 - 115686

Опубликована: Фев. 6, 2025

Язык: Английский

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Lithiophilic‐Gradient, Li⁺ Supplementary Interphase Design for Lean Lithium Metal Batteries

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 25, 2025

The practicability of anode-less/free lithiummetal batteries (LMBs) is impeded by unregulated dendrite formation on thedeposition substrate. Herein, this study presents a lithiophilic-gradient, layer-stacked interfacial design for the lean lithium metal battery (LLMB) model. Engineered via facile wet-chemistry approach, high entropy metalphosphide (HEMP) particles with tunable lithiophilic species are dispersedwithin reduced graphene oxide (RGO). Moreover, poly (vinylidene fluoride co-hexafluoropropylenepolymer) (PVDF-HFP), blended molten Li at tailorable amounts, forms aLi supplementary top layer through layer-transfer printing technique. Theintegrated (HEMP@RGO-MTL@PH) not only regulates dendrite-free lithiumdeposition towards Cu substrate up to 10 mAh cm-2, but also maintains robust cyclability symmetric cell 5 mA cm-2 even under 83% depth discharge. As pairing modified foil LiNi0.8Mn0.1Co0.1O2 cathode (NCM811, 16.9 mg double sided, N/P ratio 0.21) in 200 pouch cell, achieves gravimetric energy densities 414.7 Wh kg-1, power output 977.1 W as well highly reversible phasic evolutionmonitored operando. This gradient strategy can promotethe commercialization energy/power-dense storage solutions.

Язык: Английский

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Dendrite-Free Lithium Batteries Enabled by an Artificial High-Dielectric Biopolymer Interface Layer

Nano Letters, Год журнала: 2024, Номер 24(44), С. 13972 - 13980

Опубликована: Окт. 23, 2024

Lithium (Li) metal batteries face challenges, such as dendrite growth and electrolyte interface instability. Artificial layers alleviate these issues. Here, cellulose nanocrystal (CNC) nanomembranes, with excellent mechanical properties high specific surface areas, combine polyvinylidene-hexafluoropropylene (PVDF-HFP) porous membranes to form an artificial solid interphase (SEI) layer. The structure of PVDF-HFP equalizes the electric field near metallic lithium surfaces. modulus CNC (6.2 GPa) effectively inhibits growth, ensures uniform flow ions electrode, dendrites during cycling. synergy polarity β-phase poly(vinylidene fluoride) (PVDF) provides over 1000 h stability for Li//Li batteries. Moreover, Li//LiFePO

Язык: Английский

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Organic/Inorganic Hybrid Cross-Linked Gel Polymer Electrolyte for Optimizing the Solvation Structure of Lithium Ions

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

Опубликована: Янв. 13, 2025

Lithium metal electrodes inevitably lead to the decomposition of liquid electrolyte and lithium dendrite growth, both which result in formation unstable solid intermediates (SEIs). Gel polymer electrolytes (GPEs) are expected replace for optimizing SEI issues metal. Herein, a cellulose-based gel cross-linked by thiol-modified polyhedral oligomeric silsesquioxane (thiol-modified-POSS) was successfully obtained based on "thiol–ene" click chemistry. This organic/inorganic hybrid GPE not only exhibits high mechanical strength structural stability but also promotes generation TFSI–-rich lithium-ion solvated structures, turn accelerates uniform stable inorganic-rich SEIs. Relying SEIs between anode, Li/GPE/LiFePO4 cell capacity retention 88% after 200 cycles at 0.5 C, is much higher than GPEs without an inorganic cross-linker (only 33% retention). We anticipate that this work will provide good strategy obtain high-performance batteries.

Язык: Английский

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