Work‐Function‐Induced Interfacial Electron/Ion Transport in Carbon Hosts toward Dendrite‐Free Lithium Metal Anodes

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(44)

Опубликована: Сен. 15, 2023

Coupled electron/ion transport is a decisive feature of Li plating/stripping, wherein the compatibility rates determines morphology deposited Li. Local Li+ hotspots form due to inhomogeneous interfacial charge transfer and lead uncontrolled deposition, which decreases utilization rate safety metal anodes. Herein, we report method obtain dendrite-free anodes by driving electron pumping accumulating boosting ion diffusion tuning work function carbon host using cobalt-containing catalysts. The results reveal that increasing provides an deviation from C Co, electron-rich Co shows favorable binding . catalysts boost on fiber scaffolds without local aggregation reducing migration barrier. as-obtained anode exhibits Coulombic efficiency 99.0 %, cycle life over 2000 h, 50 capacity retention 83.4 % after 130 cycles in pouch cells at negative/positive ratio 2.5. These findings provide novel strategy stabilize regulating materials electrocatalysts.

Язык: Английский

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Li, Na, K, Mg, Zn, Al, and Ca Anode Interface Chemistries Developed by Solid‐State Electrolytes

Advanced Science, Год журнала: 2023, Номер 10(32)

Опубликована: Сен. 24, 2023

Abstract Solid‐state batteries (SSBs) have received significant attention due to their high energy density, reversible cycle life, and safe operations relative commercial Li‐ion using flammable liquid electrolytes. This review presents the fundamentals, structures, thermodynamics, chemistries, electrochemical kinetics of desirable solid electrolyte interphase (SEI) required meet practical requirements anodes. Theoretical experimental insights for metal nucleation, deposition, stripping cycling anodes are provided. Ion transport mechanisms state‐of‐the‐art solid‐state electrolytes (SEs) discussed realizing high‐performance cells. The interface challenges strategies also concerned with integration SEs, anodes, cathodes large‐scale SSBs in terms physical/chemical contacts, space‐charge layer, interdiffusion, lattice‐mismatch, dendritic growth, chemical reactivity SEI, current collectors, thermal instability. recent innovations anode chemistries developed by SEs highlighted monovalent (lithium (Li + ), sodium (Na potassium (K )) multivalent (magnesium (Mg 2+ zinc (Zn aluminum (Al 3+ calcium (Ca cation carriers (i.e., lithium‐metal, lithium‐sulfur, sodium‐metal, potassium‐ion, magnesium‐ion, zinc‐metal, aluminum‐ion, calcium‐ion batteries) compared those counterparts.

Язык: Английский

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Constructing Dynamic Anode/Electrolyte Interfaces Coupled with Regulated Solvation Structures for Long‐Term and Highly Reversible Zinc Metal Anodes

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(22)

Опубликована: Март 4, 2024

Aqueous zinc ion batteries (AZIBs) show a great potential for next-generation energy storage due to their high safety and density. However, the severe side reactions of negative electrode largely hinder further application AZIBs. Herein, trace tris(hydroxymethyl)aminomethane (Tris) additive with rich lone-pair-electrons zincophilic sites is firstly introduced achieve long-term highly reversible Zn plating/stripping. Specifically, Tris not only regulates solvation structure

Язык: Английский

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Solid Electrolyte Interphase on Lithium Metal Anodes

ChemSusChem, Год журнала: 2024, Номер 17(11)

Опубликована: Янв. 31, 2024

Abstract Lithium metal batteries (LMBs) represent the most promising next‐generation high‐energy density batteries. The solid electrolyte interphase (SEI) film on lithium anode plays a crucial role in regulating deposition and improving cycling performance of LMBs. In this review, we comprehensively present formation process SEI film, while elucidating key properties such as electronic conductivity, ionic mechanical performance. Furthermore, various approaches for constructing are discussed from both regulation artificial coating design perspectives. Lastly, future research directions along with development recommendations also provided. This review aims to provide possible strategies further improvement LMBs highlight their inspiration directions.

Язык: Английский

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Superfast Zincophilic Ion Conductor Enables Rapid Interfacial Desolvation Kinetics for Low‐Temperature Zinc Metal Batteries

Advanced Science, Год журнала: 2024, Номер 11(28)

Опубликована: Май 9, 2024

Abstract Low‐temperature rechargeable aqueous zinc metal batteries (AZMBs) as highly promising candidates for energy storage are largely hindered by huge desolvation barriers and depressive Zn 2+ migration kinetics. In this work, a superfast zincophilic ion conductor of layered silicate nanosheet (LZS) is constructed on metallic surface, an artificial layer diffusion accelerator. The experimental simulation results reveal the ability structure LZS not only promote kinetics [Zn(H 2 O) 6 ] but also accelerate transport across anode/electrolyte interface, guiding uniform deposition. Benefiting from these features, LZS‐modified anodes showcase long‐time stability (over 3300 h) high Coulombic efficiency with ≈99.8% at mA cm −2 , respectively. Even reducing environment temperature down to 0 °C, ultralong cycling up 3600 h distinguished rate performance realized. Consequently, assembled Zn@LZS//V O 5‐x full cells deliver superior cyclic (344.5 mAh g −1 after 200 cycles 1 A ) capability (285.3 10 together low self‐discharge rate, highlighting bright future low‐temperature AZMBs.

Язык: Английский

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Directing (110) Oriented Lithium Deposition through High‐flux Solid Electrolyte Interphase for Dendrite‐free Lithium Metal Batteries

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(41)

Опубликована: Авг. 22, 2023

Controlling lithium (Li) electrocrystallization with preferred orientation is a promising strategy to realize highly reversible Li metal batteries (LMBs) but lack of facile regulation methods. Herein, we report high-flux solid electrolyte interphase (SEI) direct (110) deposition even on (200)-orientated substrate. Bravais rule and Curie-Wulff principle are expanded in process decouple the relationship between SEI engineering crystal orientation. Multi-spectroscopic techniques combined dynamics analysis reveal that CF3 Si(CH3 )3 (F3 ) induced -SEI) high LiF -Si(CH3 contents can ingeniously accelerate Li+ transport ensure sufficient concentration below The turn further promote surface migration atoms avoid tip aggregation, resulting planar, dendrite-free morphology Li. As result, our F3 -SEI enables ultra-long stability Li||Li symmetrical cells for more than 336 days. Furthermore, modified significantly enhance cycle life Li||LiFePO4 Li||NCM811 coin pouch full practical conditions. Our crystallographic dendrite suppression paves path achieve reliable LMBs may provide guidance other crystals.

Язык: Английский

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Na3V2O2(PO4)2F nanoparticles@reduced graphene oxide: a high-voltage polyanionic cathode with enhanced reaction kinetics for aqueous zinc-ion batteries

Chemical Engineering Journal, Год журнала: 2023, Номер 468, С. 143738 - 143738

Опубликована: Май 25, 2023

Язык: Английский

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Molecular Engineering toward Robust Solid Electrolyte Interphase for Lithium Metal Batteries

Advanced Materials, Год журнала: 2023, Номер 36(14)

Опубликована: Дек. 12, 2023

Lithium-metal batteries (LMBs) with high energy density are becoming increasingly important in global sustainability initiatives. However, uncontrollable dendrite seeds, inscrutable interfacial chemistry, and repetitively formed solid electrolyte interphase (SEI) have severely hindered the advancement of LMBs. Organic molecules been ingeniously engineered to construct targeted SEI effectively minimize above issues. In this review, multiple organic molecules, including polymer, fluorinated organosulfur, comprehensively summarized insights into how corresponding elastic, fluorine-rich, organosulfur-containing SEIs provided. A variety meticulously selected cases analyzed depth support arguments molecular design SEI. Specifically, evolution molecules-derived is discussed principles proposed, which beneficial guiding researchers understand architect based on molecules. This review provides a guideline for constructing molecule-derived will inspire more concentrate exploitation

Язык: Английский

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Developing artificial solid-state interphase for Li metal electrodes: recent advances and perspective

Energy Materials and Devices, Год журнала: 2023, Номер 1(1), С. 9370005 - 9370005

Опубликована: Сен. 1, 2023

The failure of Li metal anodes can be attributed to their unstable electrode/electrolyte interface, especially the continuous formation solid electrolyte interphase (SEI) and dendrite growth. To address this challenge, scholars proposed construction artificial SEI (ASEI) as a promising strategy. ASEI mainly homogenizes distribution Li⁺, mitigates growth, facilitates Li⁺ diffusion, protects anode from erosion. This review comprehensively summarizes recent progress in layers terms chemical composition. Fundamental understanding mechanisms, design principles, functions main components are analyzed. We also propose future research directions facilitate in-depth study its practical applications batteries. offers perspectives that will greatly contribute electrodes.

Язык: Английский

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Enhancing Interfacial Strength and Wettability for Wide‐Temperature Sodium Metal Batteries

Small, Год журнала: 2023, Номер 19(33)

Опубликована: Апрель 19, 2023

Abstract Development of high‐performance sodium metal batteries (SMBs) with a wide operating temperature range (from −40 to 55 °C) is highly challenging. Herein, an artificial hybrid interlayer composed phosphide (Na 3 P) and vanadium (V) constructed for wide‐temperature‐range SMBs via pretreatment. As evidenced by simulation, the VP‐Na can regulate redistribution Na + flux, which beneficial homogeneous deposition. Moreover, experimental results confirm that possesses high Young's modulus compact structure, effectively suppress dendrite growth alleviate parasitic reaction even at °C. In addition, exhibits capability knock down kinetic barriers fast transportation, realizing 30‐fold decrease in impedance Symmetrical cells present prolonged lifespan reaching 1200, 500, 500 h room temperature, °C °C, respectively. V 2 (PO 4 ) ||VP‐Na full cells, reversible capacity 88, 89.8, 50.3 mAh g −1 be sustained after 1600, 1000, 600 cycles The pretreatment formed proves effective strategy achieve SMBs.

Язык: Английский

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