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

International Journal of Modelling and Simulation, Год журнала: 2025, Номер unknown, С. 1 - 19

Опубликована: Март 19, 2025

Язык: Английский

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

Small Methods, Год журнала: 2025, Номер unknown

Опубликована: Апрель 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.

Язык: 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, Год журнала: 2025, Номер 122, С. 116621 - 116621

Опубликована: Апрель 15, 2025

Язык: Английский

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

Опубликована: Янв. 1, 2025

Язык: 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, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 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.

Язык: 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, Год журнала: 2024, Номер unknown

Опубликована: Сен. 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.

Язык: Английский

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

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 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.

Язык: Английский

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

Journal of Energy Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Язык: Английский

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

Energy & Fuels, Год журнала: 2024, Номер unknown

Опубликована: Сен. 17, 2024

Язык: 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, Год журнала: 2024, Номер 31(12), С. 4397 - 4410

Опубликована: Дек. 1, 2024

Язык: Английский

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