Mitigating volume expansion of silicon-based anode through interfacial engineering based on intermittent discharge strategy

Journal of Energy Chemistry, Год журнала: 2024, Номер 98, С. 680 - 691

Опубликована: Июль 24, 2024

Язык: Английский

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Nano-Silicon Encased in a S, N Co-doped Carbon Shells Anode Delivers High Lithium-Ion Storage Performance

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(33), С. 12542 - 12552

Опубликована: Авг. 3, 2024

Nano-silicon (Si) integrating carbonous material has been recognized as a viable approach for restraining the intrinsic serious volume change and enhancing poor conductivity, finally resulting in improved electrochemical properties, including capacity, rate performance, cycling life-span. Nevertheless, it remains huge challenge via straightforward strategy to obtain homogeneous Si@C composite with an exceptional Li+ storage performance. Herein, novel Si S, N co-doped carbon shell graphite (Si@C/SN@Graphite) have prepared through combining situ coating liquid-phase ball milling method, which thiourea was used dopant, poly(ethylene glycols) were precursor, utilized matrix. The combined effect of S co-doping layer sheet is sufficient efficiently restrain expansion, enhance electronic provide numerous rooms anode. Furthermore, theoretical simulation testing carried out further demonstrate superiority layer. As result, as-prepared Si@C/SN anode delivers notable initial Coulombic efficiency (ICE) 91%, high reversible capacity 1213 mAh/g at 2 A/g within 0–1.0 V coupled 92.8% retention 400 cycles. Moreover, Si@C/SN@Graphite exhibits outstanding capacities 690 379 0.05 1 0–2 along 90% 500 Additionally, full cell assembled by using LiFePO4 cathode presents 176.5 137.9 0.2 3 C, respectively, considerable ICE 92% well 200 This work provides facile cost-effective obtaining composites Li-ion capabilities LIBs.

Язык: Английский

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Synergistic effect of MnS@Bi2S3 nanosheets for enhanced electrochemical performance in aqueous electrolyte supercapacitor application

Materials Chemistry and Physics, Год журнала: 2024, Номер 319, С. 129393 - 129393

Опубликована: Апрель 29, 2024

Язык: Английский

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Research Progresses on Nano-Structured Silicon-Based Materials as Anode for Lithium-Ion Batteries

Materials, Год журнала: 2025, Номер 18(4), С. 830 - 830

Опубликована: Фев. 14, 2025

Silicon-based materials are considered the most promising next-generation anode for lithium-ion batteries due to their high theoretical specific capacity, rich reserves, and advantages of low discharge potential. However, significant volume expansion silicon during cycling process leads detachment active substances loss electrical contact between current collector, ultimately resulting in a decline battery performance. Nanostructured anodes have surface area, short diffusion path, ability effectively alleviate electrode material circulation. Therefore, how rationally design nanostructured silicon-based is currently one research hotspots. This article first reviews evaluates disadvantages microstructured nano-structured rate performance, discusses cycle stability volumetric energy density, summarizes lithium storage mechanism materials, with focus on influence some silicon/carbon composites conductive polymers silicon/metal electrochemical properties materials. Finally, suggestions prospects future development proposed.

Язык: Английский

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Recycled micron-sized silicon anode for fast and highly stable lithium-ion storage via interface design engineering

Journal of Energy Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Effect of carboxymethyl cellulose on silicon dispersion and the performance of graphite/Si-based electrodes for lithium-ion batteries

Powder Technology, Год журнала: 2024, Номер 452, С. 120452 - 120452

Опубликована: Ноя. 16, 2024

Язык: Английский

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Research Progress on the Application of MOF Materials in Lithium‐Ion Batteries

Battery energy, Год журнала: 2024, Номер unknown

Опубликована: Дек. 18, 2024

ABSTRACT Lithium‐ion batteries (LIBs) have established themselves as the preferred power sources for both pure electric and hybrid vehicles, attributable to their exceptional characteristics, including prolonged cycle life, elevated energy density, minimal self‐discharge rates. Metal‐organic frameworks (MOFs), innovative functional molecular crystal materials, exhibit promising application prospects in LIBs. This paper provides a comprehensive overview of latest advancements synthesis techniques structural modulation MOFs derivative materials. It particularly emphasizes thorough exploration utilization derivatives anode, cathode, separators Additionally, this delves into current obstacles encountered by LIB applications offers insights potential future development.

Язык: Английский

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Metallized polymer current collector as “stress acceptor” for stable micron-sized silicon anodes

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

Опубликована: Окт. 1, 2024

Язык: Английский

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