The Influence of Ionizing Radiation on Quantification for In Situ and Operando Liquid‐Phase Electron Microscopy

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Abstract The ionizing radiation harnessed in electron microscopes or synchrotrons enables unique insights into nanoscale dynamics. In liquid‐phase transmission microscopy (LP‐TEM), irradiating a liquid sample with electrons offers access to real space information at an unmatched combination of temporal and spatial resolution. However, employing for imaging can alter the Gibbs free energy landscape during experiment. This is mainly due radiolysis corresponding shift chemical potential; however, experiments also be affected by irradiation‐induced charging heating. this review, state art describing beam effects summarized, theoretical experimental assessment guidelines are provided, strategies obtain quantitative under such conditions discussed. While review showcases these on LP‐TEM, concepts that discussed here applied other types used probe samples, as synchrotron X‐rays.

Language: Английский

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Dynamic Evolution and Effective Tuning of Lithium Dendrites Revealed by Phase Field Model and 2D Numerical Simulation

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

Published: Jan. 23, 2025

Lithium dendrites are widely acknowledged as the main culprit of degradation performance in various Li-based batteries. Studying mechanism lithium dendrite formation is challenging because high reactivity metal. In this work, a phase field model and situ observation experiments were used to study growth kinetics morphologies terms anisotropy, temperature, potential difference. Subsequently, 2D numerical simulation has been developed illustrate impact microscopic parameters, such electrolyte potential, current distribution, anode overpotential, on after nucleation. Meanwhile, influence electrode interface, charging rate, mode was also studied using experiments. This work provides comprehensive insights into morphologies, offering an important theoretical reference for safety long-life applications

Language: Английский

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Two-dimensional carbon-based nanomaterials convoying dendrite-free Zn/Li metal batteries

Chemical Engineering Science, Journal Year: 2025, Volume and Issue: unknown, P. 121499 - 121499

Published: March 1, 2025

Language: Английский

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Research progress on lithium dendrite growth

Published: March 31, 2025

This article reviews the progress in growth mechanisms, suppression strate-gies, and monitoring techniques of lithium dendrites. The high - capacity poten-tial metal anodes is restricted by cycle decay, short circuits, thermal runaway caused Their originates from elec-tro-chemical imbalance interfacial heterogeneity. Multi physics models reveal regulation rules pore geometry crystal orientation on mor-phology evolution. Suppression strategies center constructing conduc-tivity LiF interfaces, designing 3D porous anodes, pressure control. In situ charac-terization technologies (such as X ray tomography fiber optic sensing) realize dynamic coupled mechanisms dendrite SEI reconstruction. Current challenges involve cross scale model verification real time technology development. future, it's necessary to combine machine learning with intelligent sensor networks promote practical application safety batteries.

Language: Английский

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Understanding Electrochemical Degradation via Liquid Phase Transmission Electron Microscopy

The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Language: Английский

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Multifunctional C/ZnS nanocapsules modified carbon cloth as 3D conductive collector and lithium host for stable lithium metal anodes

Rare Metals, Journal Year: 2025, Volume and Issue: unknown

Published: April 23, 2025

Language: Английский

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Dynamic Networks via Polymerizable Deep Eutectic Monomers for Uniform Li⁺ Transport at Interfaces in Lithium Metal Batteries

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

Abstract Solid polymer electrolytes (SPEs) offer an appealing alternative to volatile and flammable organic liquid for high‐energy lithium metal batteries (LMBs). Despite their potential, two key challenges, insufficient ionic conductivity inadequate interfacial performance, continue hinder practical development. Here, the promising potential of a single‐ion conducting gel electrolyte (SIGPE) derived from polymerizable deep eutectic monomer (PDEM) is demonstrated. This structure forms dynamic nanophases with high‐dielectric‐constant dielectricizer through Li + ‐bridged molecular self‐association within flexible matrix. design regulates ion pathways enable rapid conduction, effectively preventing polarization promoting dissociation, while also exhibiting viscoelastic properties that strengthen interface stability. The resultant SIGPE exhibits high oxidation voltage 5.0 V near‐unity transference number 0.86. In LFP|SIGPE|Li full cell, formation inorganic‐rich SEI layer, driven by hetero species (Li 2 O/LiF), enables discharge capacity 131.9 mAh g −1 at 1 C stable cycling 71.9% retention 99.5% coulombic efficiency after 400 cycles 30 °C. These findings underscore PDEM‐based enhance safety, sustainability in LMBs, paving way use storage systems.

Language: Английский

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Process optimization for recycling spent lithium iron phosphate batteries based on leaching kinetics and mechanism study

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: 370, P. 133263 - 133263

Published: April 28, 2025

Language: Английский

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Enhanced Solid Electrolyte Interphase Layer in Li-Ion Batteries with Fluoroethylene Carbonate Additives Evidenced by Liquid-Phase Transmission Electron Microscopy

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: May 15, 2025

The solid electrolyte interphase (SEI) layer is essential for battery performance and safety due to its electron insulation Li-ion conduction. However, issues such as ongoing decomposition Li dendrite growth often arise. most common strategy improving the SEI using additives. mechanism of with additives remains unclear. In this study, we use operando electrochemical liquid cell scanning transmission microscopy (ec-LC-STEM) monitor in real time nanoscale processes at electrode-electrolyte interface during operation. We investigate how additive fluoroethylene carbonate (FEC) influences formation properties SEI, well dissolution dendrites. Our study shows that FEC decomposes early, allowing nucleation LiF nanoparticles (NPs) create a dense, uniform, thin layer. Interestingly, our analysis reveals these NPs have structural defects could influence ionic electronic conductivity. real-time observations show FEC-based facilitates dense short metals, whereas FEC-free leads long whiskers thinner roots than tips. This difference their mechanism: FEC-rich electrolytes, strong contact between metal electrode ensures complete dissolution, while partial occurs, leaving behind inactive metal. These findings emphasize crucial role shaping local structure thereby regulating

Language: Английский

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Anionic/cationic grafted silica modified separator boosting efficient Li-ion transport

Progress in Organic Coatings, Journal Year: 2025, Volume and Issue: 207, P. 109398 - 109398

Published: May 31, 2025

Language: Английский

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