A review of measurement methods for lithium-based battery defect and degradation analysis

International Journal of Modelling and Simulation, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 19

Published: March 19, 2025

Language: Английский

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Constructing Asymmetric SiO_x/C Janus Structures with Diverse Carbon Density Frameworks Enables Electrochemical Stability

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

Abstract The main challenges limiting the practical application of silicon‐based anode materials are volume fluctuations during cycling and poor intrinsic conductivity. One most effective strategies to address these limitations is incorporation carbon into silicon composites. However, few studies have investigated impact diverse density frameworks on electrochemical performance, primarily due associated with structural construction. Herein, an anisotropic nucleation growth strategy employed control behavior organosilane surface nanospheres by modulating hydrolysis environment, successfully constructing asymmetric SiO x /C Janus structures frameworks, including assembly nanosphere region (BSC) cubic‐ rod‐shaped regions (ESC). mechanisms ESC also investigated. exploration structure reveals that BSC has a denser framework, while exhibits sparse framework. Electrochemical performance confirms material dense framework superior behavior, maintaining capacity 464.4 mA h g −1 after 500 cycles. Among them, porous uniform contribute both stability.

Language: Английский

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A porous silicon/graphite anode modified with Li3PO4 and polyethylene oxide (PEO) for highly Li+ dynamic and stable lithium-ion batteries

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 122, P. 116621 - 116621

Published: April 15, 2025

Language: Английский

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Simulations of Deposition of Hybrid Films with Silicon Layers and Tantalum Nanoparticle Scaffolds

Published: Jan. 1, 2025

Language: Английский

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Inorganic solid electrolytes for all-solid-state sodium/lithium-ion batteries: recent development and applications

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 14, 2024

This review provides a comprehensive overview of recent advancements in preparation techniques and electrolyte engineering. It also discusses the integration both single- multi-phase electrolytes ASSBs future research potentials.

Language: Английский

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Electrostatic Interactions Dominate the Surface Assembly of Silicon‐Based Nanospheres on Carbon Nanofibers for Flexible Lithium‐Ion Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 18, 2024

Abstract The construction of flexible freestanding silicon‐based electrodes eliminates the addition inactive materials, improving overall energy density, and effectively avoiding disadvantage active materials being easily separated from collector due to volume effect. However, many reports lack long‐term cycling stability. Here, 3 different are designed find that electrode with surface assembly dominated by electrostatic interactions can significantly improve Owing better mechanical properties, this surface‐assembled demonstrates unique flexibility. conductive framework void structure not only reveal excellent lithium‐ion diffusion capability charge‐transfer kinetics but also provide ample space for expansion material, which endows electrochemical performance. With 2 folds, capacity remains at 471 mA h g −1 after 1000 cycles (0.5 A ). In addition, as‐prepared pouch cell maintains high stability folding, an average degradation 0.01% per cycle during cycles, highlighting its considerable potential in development devices. Remarkably, such interfacial on fiber enables modulation multilayer assembly.

Language: Английский

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How Binder Nanofibration Affects the Active‐Material Microenvironment in Battery Electrodes?

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 10, 2024

Abstract Binder morphology is a critical factor determining the electrode microstructures and properties, which fundamentally controls charge transport mechanical performance of resultant battery. In this case, polytetrafluoroethylene (PTFE) binder great interest as it exhibits unique nanofibration capability flexibility, has been broadly applied for dry processing battery electrodes. However, there lack fundamental study on how affects electrochemomechanical properties Here, similar to fibrous structures cell microenvironment, attempt answer question from viewpoint active‐material microenvironment (ME@AM). First, PTFE degree adjusted by calendering treatment loading. Second, microstructures, relaxation behavior, bending capability, liquid–electrolyte wetting ME@AM are comparatively investigated in detail dynamic testing. Finally, superiority highly electrochemical confirmed C‐rate cycling stability testing half‐cells. This indicates that can remarkably improve electrodes enhanced capillary action with liquid electrolyte, good structural under compression.

Language: Английский

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Direct contact pre-lithiation for practical lithium ion batteries: Focus review

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

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Ethylene Carbonate-Free Electrolytes for High Voltage Lithium-Ion Batteries: Progress and Perspectives

Energy & Fuels, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 17, 2024

Language: Английский

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In-situ grown Ti3C2@TiO2 heterostructure enables high-performance lithium-sulfur batteries with polysulfides capture and catalytic conversion mechanism

Journal of Central South University, Journal Year: 2024, Volume and Issue: 31(12), P. 4397 - 4410

Published: Dec. 1, 2024

Language: Английский

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