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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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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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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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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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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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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Fast Charging Lithium Metal Battery Based on Lewis Acid/Base Dual-Site Solid Electrolyte Interphase

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104069 - 104069

Опубликована: Янв. 1, 2025

Язык: Английский

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Copper nanoparticles supported on Metal-Organic framework with topological defects for CO2 hydrogenation to methanol

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 686, С. 1147 - 1156

Опубликована: Фев. 4, 2025

Язык: Английский

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Dendrite‐Free Li Metal Anode Achieved by Bi‐Functional Host of NH₂‐Modified UiO‐66 on Zn‐Embedded Porous Carbon Nanofibers

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 11, 2025

Abstract 3D carbonaceous host is considered as an ideal candidate for stabilizing Li metal anode (LMA) owing to its lightweight and high electronic conductivity. Nonetheless, the surface chemistries of carbon materials at different locations should be regulated modify lithiophilicity ion diffusion. In this study, a metal–organic frameworks‐engaged strategy design core–shell porous with mixed ionic/electronic conducting feature developed. To specific, Zn‐embedded nanofibers (Zn/CF) are designed cores using ZIF‐8 particles precursors pore‐forming agents. Meanwhile, NH 2 ‐functionalized UiO‐66 (NH ‐UiO‐66) nanoparticles in‐situ grown on above fibers promoted ions migration. As result, composite LMA bi‐functional Zn/CF@NH ‐UiO‐66 demonstrates enhanced stability rate performance. Particularly, obtained asymmetric cell delivers stable operation up 500 cycles 1 mA cm −2 . Moreover, corresponding Li‐Zn/CF@NH ‐UiO‐66//LiFePO 4 full shows high‐capacity retention 93.4% over 1700 C (1 ≈169 g −1 ).

Язык: Английский

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Enhancing Safety in Lithium Batteries: A Review on Functional Separators Controlling Substance and Heat During Thermal Runaway

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Abstract In past few decades, the rapid advancement of lithium battery technology has revolutionized our lives by powering portable electronic devices and vehicles. However, increasing risk thermal runaway (TR) poses significant challenges to their wider application, particularly regarding detrimental effects on electric vehicles large‐scale energy storage. The separator, serving as a barrier between cathode anode, is critical in preventing active materials generate Joule heat, thereby playing vital role ensuring safety. As understanding TR mechanism deepens, it evident that numerous exothermic reactions substances are closely linked separator. Consequently, functional design development runaway‐blocking separators (TR‐blocking separators) regarded key strategies for mitigating TR. intricate relationships these remain poorly understood, making challenging gain progress targeted separators. This review presents an in‐depth analysis regulating internal side batteries minimize heat release during TR, summarize advancements TR‐blocking enhancing safety at different stages. Furthermore, insights into presented based previous studies various unfavorable reactions. Additionally, future directions suggested

Язык: Английский

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