Disordered materials for high-performance lithium-ion batteries: A review

Nano Energy, Год журнала: 2024, Номер 121, С. 109250 - 109250

Опубликована: Янв. 3, 2024

Disordered materials (DMs) have become promising in the advancement of lithium-ion batteries (LIBs). Their disordered, open structure is conductive to facilitate efficiency storage. DMs with tunable compositions also possess abundant defects that can interact Li+, further enhancing their electrochemical performances LIBs. Yet, revealing structural origin superior properties DM-based LIBs remains a challenge. In this article, we review recent advances development components for LIBs, such as anodes, cathodes, coating layers, and solid-state electrolytes. We describe primary preparation characterization methods utilized DMs, while describing mechanisms involved DM synthesis. This article addresses correlation between performances. Moreover, elucidate challenges future perspectives summarize key advantages LIB performance over crystalline counterparts, providing insights developing through tailored development.

Язык: Английский

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Controllable Interface Engineering for the Preparation of High Rate Silicon Anode

Advanced Functional Materials, Год журнала: 2024, Номер 34(40)

Опубликована: Апрель 19, 2024

Abstract Silicon (Si) is considered to be the promising candidate anode for next generation of high‐energy‐density batteries. However, poor initial coulombic efficiency (ICE) and rate performance severely hinder its commercial development. Here, fully exploits 2D structure photovoltaic silicon waste (PV‐WSi), combining with advantage controllable depositing layers offered by fluidized bed atomic layer deposition (FBALD), simultaneously achieve high ICE highrate Si‐based anodes. The characteristic Li + embedding vertically into plane direction sheet‐like PV‐WSi helps shorten diffusion distance, alleviating pulverization problem caused volume expansion. FBALD utilized controllably deposit 2 O (≈1 nm) TiO (≈4 compensate loss sources, further suppressing expansion Si isolating side reactions between electrolyte. prepared Si@Li O@TiO demonstrates ultrahigh (90.9%) outstanding (>900 mAh g −1 at a 20 A ). Full cells LiFePO 4 cathode deliver stable capacity 100 after 300 cycles 0.5 C. This work provides new ideas development ICE, high‐rate anodes based on low‐cost waste.

Язык: Английский

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Boron-doped three-dimensional porous carbon framework/carbon shell encapsulated silicon composites for high-performance lithium-ion battery anodes

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 664, С. 790 - 800

Опубликована: Март 11, 2024

Язык: Английский

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Delocalized electronic engineering of TiNb2O7 enables low temperature capability for high-areal-capacity lithium-ion batteries

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Июль 26, 2024

Abstract High areal capacity and low-temperature ability are critical for lithium-ion batteries (LIBs). However, the practical operation is seriously impeded by sluggish rates of mass charge transfer. Herein, active electronic states TiNb 2 O 7 material modulated dopant O-vacancies enhanced dynamics. Femtosecond laser-based transient absorption spectroscopy employed to depict carrier dynamics , which verifies localized structure polarization accounting reduced transport overpotential, facilitated electron/ion transport, improved Li + adsorption. At high-mass loading 10 mg cm −2 −30 °C, TNO - x @N microflowers exhibit stable cycling performance with 92.9% retention over 250 cycles at 1 C (1.0-3.0 V, = mA g −1 ). Even −40 a competitive 1.32 mAh can be achieved. Such fundamental understanding intrinsic structure-function put forward rational viewpoint designing high-areal-capacity in cold regions.

Язык: Английский

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Advanced Micro/Nanostructure Silicon-Based Anode Materials for High-Energy Lithium-Ion Batteries: From Liquid- to Solid-State Batteries

Energy & Fuels, Год журнала: 2024, Номер 38(9), С. 7693 - 7732

Опубликована: Апрель 22, 2024

Silicon, revered for its remarkably high specific capacity (3579 mAh/g), stands poised as a prime contender to supplant conventional graphite anodes. In the pursuit of next generation high-energy lithium-ion batteries burgeoning domain renewable energy, silicon anodes have garnered considerable attention. However, substantial challenges arising from volumetric expansion during charge–discharge cycles severely impeded industrial-scale application anodes, giving rise issues such compromised cycling stability and diminished Coulombic efficiency. For more industrially compatible realm microscale silicon, academic community has proffered an array strategic solutions surmount these impediments. This comprehensive exposition embarks upon systematic survey research progress about micro/nano structure spanning liquid-state solid-state battery architectures. batteries, we distill quintessence material design strategies along with holistic enhancements encompassing prelithiation, binder formulations, electrolyte modulation, allied system facets. Transitioning into sphere this discourse bifurcates quasi-solid-state all-solid-state dimensions. A pioneering consolidation delineates current landscape within batteries. While recent ascendancy is undeniable, myriad yet necessitate resolution. Conclusively, drawing contemporary trajectory development, proffers both forward-looking perspective cogent recommendations forthcoming endeavors.

Язык: Английский

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Orchestrating a Controllable Engineering of Dual‐Model Carbon Structure in Si/C Anodes

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 12, 2025

Abstract Silicon‐carbon composites (Si/C) with multistage structures enable structural integrity during cycling. However, the lack of controllable structure preparation on a large scale hinders stability improvement in practical applications. Herein, new strategy is proposed to synthesize kilogram‐scale Si/C (PySi/C) featuring dual‐model carbon one step. The combination an onion‐like coating Si surface independent pyrolytic accomplished through precise adjustment pyrolysis temperature. formation mechanism unraveled, detailing cooperative coupling nucleation laws compositions as well changes trends morphology and crystallinity. This density functional theory finite element analysis highlight structure's essential contribution electrochemical behavior stability. As expected, PySi/Cs anodes deliver stable cycling performance retention 91.5% after 800 cycles at 2 A g −1 . Its comprehensive surpasses that state‐of‐the‐art Si‐based anode reported. Moreover, assembled pouch cell exhibits actual competitiveness, showing capacity 1.97 Ah 88.9% 300 1 C. work provides valuable design concepts further advance development anodes.

Язык: Английский

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Advancements in Silicon Anodes for Enhanced Lithium‐Ion Batteries Performance: Innovations Toward Next‐Gen Superbatteries

Battery energy, Год журнала: 2025, Номер unknown

Опубликована: Янв. 30, 2025

ABSTRACT Silicon (Si)‐based materials have emerged as promising alternatives to graphite anodes in lithium‐ion (Li‐ion) batteries due their exceptionally high theoretical capacity. However, practical deployment remains constrained by challenges such significant volume changes during lithiation, poor electrical conductivity, and the instability of solid electrolyte interphase (SEI). This review critically examines recent advancements Si‐based nanostructures enhance stability electrochemical performance. Distinct from prior studies, it highlights application Si commercial domains, including electric vehicles, consumer electronics, renewable energy storage systems, where prolonged cycle life improved power density are crucial. Special emphasis is placed on emerging fabrication techniques, particularly scalable cost‐effective methods electrospinning sol–gel processes, which show promise for industrial adoption. By addressing both technical innovations economic considerations surrounding anodes, this provides a comprehensive roadmap overcoming existing barriers, paving way next‐generation, high‐performance batteries.

Язык: Английский

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Recent progress of Si-based anodes in the application of lithium-ion batteries

Journal of Energy Storage, Год журнала: 2023, Номер 72, С. 108715 - 108715

Опубликована: Авг. 25, 2023

Язык: Английский

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Tight Binding and Dual Encapsulation Enabled Stable Thick Silicon/Carbon Anode with Ultrahigh Volumetric Capacity for Lithium Storage

Small, Год журнала: 2023, Номер 19(48)

Опубликована: Июль 31, 2023

Silicon (Si) is regarded as one of the most promising anode materials for high-performance lithium-ion batteries (LIBs). However, how to mitigate its poor intrinsic conductivity and lithiation/delithiation-induced large volume change thus structural degradation Si electrodes without compromising their energy density critical practical application in LIBs. Herein, an integration strategy proposed preparing a compact micron-sized Si@G/CNF@NC composite with tight binding dual-encapsulated architecture that can endow it superior electrical deformation resistance, contributing excellent cycling stability good rate performance thick electrode. At ultrahigh mass loading 10.8 mg cm-2 , electrode also presents initial areal capacity 16.7 mA h (volumetric 2197.7 cm-3 ). When paired LiNi0.95 Co0.02 Mn0.03 O2 pouch-type full battery displays highly competitive gravimetric (volumetric) ≈459.1 Wh kg-1 (≈1235.4 L-1

Язык: Английский

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Building Interconnected Architectures with Silicon‐Based Nanospheres and TiN Ionic Fence Enables Ultrahigh Electrochemical Stability

Advanced Functional Materials, Год журнала: 2024, Номер 34(27)

Опубликована: Фев. 21, 2024

Abstract Silicon oxide (SiO x ) material is gradually developing as a promising alternative to silicon due better trade‐off in terms of volume expansion and theoretical capacity. However, the low conductivity instability electrode–electrolyte interface caused by penetration fluorine anion (F − severely affect stability solid electrolyte interphase (SEI), ultimately leading capacity loss cycling instability. In this work, an “ionic fence” idea proposed, which effectively inhibits shuttle F promotes SEI. Based on this, dense orderly silicon‐based interconnected assembly covered TiN protective ionic fence designed using melt‐assembly technique nitridation strategy. After 1000 deep cycles, can be maintained at 431.7 mA h g −1 , average Coulombic efficiency reach 99.69% throughout process, even steady state after 2000 showing excellent electrochemical stability. Finite element analysis reveals that fence, stress management layer, constrains materials improves mechanical structural particles fully lithiated state, thus ensuring long‐term Selective design for has great universality development potential building stable electrode materials.

Язык: Английский

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