Anchoring Active Li Metal in Oriented Channel by In Situ Formed Nucleation Sites Enabling Durable Lithium‐Metal Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(24)

Published: March 13, 2024

Abstract Lithium metal is the ultimate anode material for pursuing increased energy density of rechargeable batteries. However, fatal dendrites growth and huge volume change seriously hinder practical application lithium batteries (LMBs). In this work, a host that preinstalled CoSe nanoparticles on vertical carbon vascular tissues (VCVT/CoSe) designed fabricated to resolve these issues, which provides sufficient Li plating space with robust framework, enabling dendrite‐free deposition. Their inherent N sites coupled in situ formed lithiophilic Co loaded at interface VCVT not only anchor initial nucleation seeds but also accelerate + transport kinetics. Meanwhile, 2 Se originated from conversion contributes constructing stable solid‐electrolyte interphase high ionic conductivity. This optimized Li/VCVT/CoSe composite exhibits prominent long‐term cycling stability over 3000 h areal capacity 10 mAh cm −2 . When paired commercial nickel‐rich LiNi 0.83 0.12 Mn 0.05 O cathode, full‐cell presents substantially enhanced performance 81.7% retention after 300 cycles 0.2 C. Thus, work reveals critical role guiding deposition behavior maintain homogeneous morphology pave way LMBs.

Language: Английский

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Solid Electrolyte Interphase Recombination on Graphene Nanoribbons for Lithium Anode

ACS Nano, Journal Year: 2024, Volume and Issue: 18(12), P. 8827 - 8838

Published: March 18, 2024

The practical application of lithium metal batteries is hindered by the dendrite issue, which seriously affected composition and structure solid electrolyte interphase (SEI). Modifying SEI can regulate formation growth. Here, we experimentally realize a Li protective layer LiTFSI-ether induced natural grafted on graphene nanoribbons (SEI@GNRs) via their in situ reactions. experimental results theoretical calculations uncover that 3D SEI@GNRs reduce local current density Li+ flux. SEI@GNRs, especially rich inorganic species LiF, Li3N, Li2S, decreases nucleation overpotential, makes ion deposition uniform, isolates electron transport. Their synergetic effect suppresses growth, increasing electrochemical performance batteries. design strategy beneficial for development

Language: Английский

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Achieving Stable Lithium Metal Anodes via the Synergistic of Electrostatic Shielding and High Li+ Flux Inorganic Interphase

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(13), P. 4519 - 4530

Published: Jan. 1, 2024

A cationic polymer was developed as protective layer for Li anodes. The multiple sites in molecule provided enhanced electrostatic shielding, whereas NO 3 − anions generated robust and high + flux inorganic SEI.

Language: Английский

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Dynamic Regulation of Hydrogen Bonding Networks and Solvation Structures for Synergistic Solar-Thermal Desalination of Seawater and Catalytic Degradation of Organic Pollutants

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Oct. 23, 2024

Although solar steam generation strategy is efficient in desalinating seawater, it still challenging to achieve continuous solar-thermal desalination of seawater and catalytic degradation organic pollutants. Herein, dynamic regulations hydrogen bonding networks solvation structures are realized by designing an asymmetric bilayer membrane consisting a bacterial cellulose/carbon nanotube/Co

Language: Английский

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High-voltage electrosynthesis of organic-inorganic hybrid with ultrahigh fluorine content toward fast Li-ion transport

Science Advances, Journal Year: 2024, Volume and Issue: 10(32)

Published: Aug. 7, 2024

Hybrid materials with a rational organic-inorganic configuration can offer multifunctionality and superior properties. This principle is crucial but challenging to be applied in designing the solid electrolyte interphase (SEI) on lithium metal anodes (LMAs), as it substantially affects Li

Language: Английский

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Protective layer for stable lithium-metal anodes at 60 mA·h/cm2 and 60 mA/cm2 with ion channel and inductive effect

Journal of Materiomics, Journal Year: 2024, Volume and Issue: 10(6), P. 1252 - 1260

Published: Feb. 2, 2024

Contradiction between ultrafast nucleation and deposition rates of lithium (Li) crystals at high rate heterogeneity Li+ flux resulting from concentration polarization has compromised the performance Li metal anodes especially areal capacity current density. Here, multifunctional protective layer consisting MoO3 nanobelt films (MoO3eNF) is introduced on surface by a simple rolling method. The strong binding energy guides homogeneous Li, while networks provide effective ion channels for uniform distribution flux. Because novel layer, MoO3eNF@Li demonstrate remarkable stability 800 h with ultralow overpotential 159 mV extreme harsh conditions 60 mA h/cm2 mA/cm2. MoO3eNF@Li||LiNi0.6Co0.2Mn0.2O2 full-cells can run 100 cycles superior retention 84.2 % under practical test conditions, demonstrating great potential output energy-density batteries.

Language: 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, Journal Year: 2024, Volume and Issue: 136(22)

Published: March 4, 2024

Abstract 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 2+ , but also adsorbed vertically on anode surface changed coordination intensity during plating/stripping process generate an in situ dynamic adsorption layer first time. The could successively attract solvated then promote de‐solvation owing orientation polarization regularly‐changed applied electric field, volume rejection effect, strong intermolecular force towards H 2 O vertically‐adsorbed Tris. Therefore, improved ‐transport kinetics as well inhibition are successfully realized. Accordingly, Zn||Zn symmetric cell provides ultra‐long cycle life 2600 h. Furthermore, Zn||MnO full demonstrate capacity structural stability practical applications.

Language: Английский

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A single-ion conductive composite gel electrolyte based on helical mesoporous silica nanofibers for high-performance lithium-ion batteries

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 686, P. 567 - 577

Published: Feb. 2, 2025

Language: Английский

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Morning Glory-Inspired Biomimetic Water Purification Device with a Dry Chimney for Efficient Solar-Thermal Desalination and Simultaneous Catalytic Degradation of Organic Pollutants

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 12, 2025

Although solar steam generation is effective in evaporating water and seawater under light irradiation, it ineffective purifying wastewater with organic pollutants. Herein, a morning glory-shaped purification device dry chimney (pistil) designed for simultaneous solar-thermal evaporation of catalytic degradation pollutants therein, which fabricated by decorating Au/CoFe2O4/carbon nanotube functional components on hydrophilic porous bamboo fabric substrate. Au CoFe2O4 are capable forming Mott–Schottky heterostructures to create stable built-in electric field promote the separation electron–hole pairs, thereby facilitating activation potassium peroxymonosulfate generate reactive oxygen species achieving high rate constant 0.222 min–1 1-sun irradiation. Crucially, bionic glory structure benefits continuous supply air creates airflow circulation, reducing humidity increasing escape saturated vapor from evaporator, 3.21 kg m–2 h–1 A total as 28.21 realized therein. The integration enables an efficient protocol

Language: Английский

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Sustainable Dual‐Layered Interface for Long‐Lasting Stabilization of Lithium Metal Anodes

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(48)

Published: Nov. 12, 2023

Abstract Lithium metal anodes (LMAs) offer substantial promise for high‐energy‐density rechargeable batteries, but managing the complex electrolyte–anode interface is a challenge. Herein, sustainable dual‐layered (SDI) protected Li anode developed using joint electrospinning‐rolling technique. In this SDI, polyacrylonitrile (PAN) nanofibers normalize Li‐ion flux across bulk electrolyte and mitigate electrode volume expansion. More significantly, continuous release of lithiophilic ions aids in constructing alloy interphase situ, which facilitates transport uniform lithium deposition. With dynamic protection SDI films, cracks layer can be promptly repaired during cycling, ensuring efficient control prolonged stabilization LMAs. As validation, PAN/SnCl 2 film as an prototype, symmetric cells achieve ultra‐long cycling 5200 h (≈7 months) at 5 mA cm −2 mAh . When paired with sulfur cathode (in ether electrolyte) or LiNi 0.8 Co 0.1 Mn O ester electrolyte), full exhibit exceptional stability rate performance. This strategy LMAs opens path to suppress dendrite growth, creating new opportunities advanced batteries.

Language: Английский

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