Dalton Transactions, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
A low-temperature ionic liquid reduction system is used to prepare Si nanospheres, which display excellent lithium storage properties with an initial Coulombic efficiency of 82.9% and capacity retention 94.2% after 100 cycles at 0.5 g −1 .
Language: Английский
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: April 9, 2024
Abstract Silicon (Si), stands out for its abundant resources, eco‐friendliness, affordability, high capacity, and low operating potential, making it a prime candidate high‐energy‐density lithium‐ion batteries (LIBs). Notably, the breakthrough use of nanostructured Si (nSi) has paved way commercialization anodes. Despite this, challenges like processing costs, severe side reactions, volumetric energy density have impeded widespread industrial adoption. Micron‐scale (µSi) always faced setbacks compared to nSi due greater volume expansion. However, recent years witnessed resurgence interest in µSi‐based Capitalizing on inherent advantages, including cost tap density, µSi once again captured attention both academic communities. This review begins by contrasting strengths weaknesses nSi, then outline potential solutions enhance performance, covering aspects structural regulation, composite anodes, binder design, electrolyte exploration. Additionally, this work explores application machine learning‐assisted high‐throughput screening. Concluding review, provides insights into future prospects LIBs, outlining proposing integrated coping strategies. anticipates that will provide valuable perspectives commercial Si‐based
Language: Английский
Citations
63
Accounts of Chemical Research, Journal Year: 2023, Volume and Issue: 56(16), P. 2213 - 2224
Published: Aug. 1, 2023
ConspectusWith the escalating demands of portable electronics, electric vehicles, and grid-scale energy storage systems, development next-generation rechargeable batteries, which boasts high density, cost effectiveness, environmental sustainability, becomes imperative. Accelerating these advancements could substantially mitigate detrimental carbon emissions. The pursuit main objectives has kindled interest in pure silicon as a high-capacity electroactive material, capable further enhancing gravimetric volumetric densities compared with traditional graphite counterparts. Despite such promising attributes, materials face significant hurdles, primarily due to their drastic changes during lithiation/delithiation processes. Volume give rise severe side effects, fracturing, pulverization, delamination, triggering rapid capacity decay. Therefore, mitigating particle fracture remains primary challenge. Importantly, nanoscale (below 150 nm size) shown resilience stresses induced by repeated volume changes, thereby highlighting its potential an anode-active material. However, expansion stress not only affects internal structure but also disrupts solid-electrolyte interphase (SEI) layer, formed spontaneously on outer surface silicon, causing adverse reactions. despite nanoparticles offering new opportunities, overcoming associated issues is paramount importance.Thus, this Account aims spotlight strides made anodes particular attention feature size. From emergence following nanotechnology played crucial role growing through nano/microstructuring. Similarly, bulk microparticles gradually surfaced post-engineering methods owing practical advantages. We briefly discuss special characteristics representative examples from engineering nano/microstructuring, all aimed at intrinsic challenges, limiting large stabilizing SEI formation electrochemical cycling. Subsequently, we outline guidelines for advancing incorporate mass loading density. require superior material design incorporation exceptional battery components ensure compatibility yield synergistic effects. By broadening cooperative strategies cell system levels, anticipate that will provide insightful analysis catalyze applications real systems.
Language: Английский
Citations
52
ACS Materials Letters, Journal Year: 2023, Volume and Issue: 5(11), P. 2948 - 2970
Published: Oct. 8, 2023
Si-based anode materials offer significant advantages, such as high specific capacity, low voltage platform, environmental friendliness, and abundant resources, making them highly promising candidates to replace graphite anodes in the next generation of energy lithium-ion batteries (LIBs). However, commercialization for LIBs encounters barriers due inherent challenges. These challenges encompass a range issues, including poor electrical conductivity, substantial volume expansion during lithiation–delithiation process, severe pulverization electrodes, pronounced thickening solid electrolyte interphase film, Coulombic efficiency, limited cycling performance. Each these factors leads complexity realizing full potential commercial applications. This review provides comprehensive summary discussion recent research on LIB anodes, focusing microscopic morphology Si development composite materials. By offering novel perspective, this aims provide an overview insightful anodes. The latest findings are presented, innovative viewpoints reasonable insights addressed, shedding light solutions overcome limitations associated with
Language: Английский
Citations
49
ACS Nano, Journal Year: 2023, Volume and Issue: 17(21), P. 20850 - 20874
Published: Nov. 3, 2023
With the accelerated penetration of global electric vehicle market, demand for fast charging lithium-ion batteries (LIBs) that enable improvement user driving efficiency and experience is becoming increasingly significant. Robust ion/electron transport paths throughout electrode have played a pivotal role in progress LIBs. Yet traditional graphite anodes lack ion channels, which suffer extremely elevated overpotential at ultrafast power outputs, resulting lithium dendrite growth, capacity decay, safety issues. In recent years, emergent multiscale porous dedicated to building efficient channels on multiple scales offer opportunities anodes. This review survey covers advances emerging It starts by clarifying how pore parameters such as porosity, tortuosity, gradient affect ability from an electrochemical kinetic perspective. We then present overview efforts implement both material levels diverse types anode materials. Moreover, we critically evaluate essential merits limitations several quintessential practical viewpoint. Finally, highlight challenges future prospects design associated with materials electrodes well crucial issues faced battery management level.
Language: Английский
Citations
46
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 30, 2024
Abstract Silicon/carbon (Si/C) composites present great potential as anode materials for rechargeable batteries since the integrate high specific capacity and preferable cycling stability from Si C components, respectively. Functional Si/C based on lignocellulose have attracted wide attention due to advantages lignocellulose, including sustainability property, flexible structural tunability, diverse physicochemical functionality. Although flourishing development of boosts studies lignocellulose‐derived with electrochemical performance, publications that comprehensively clarify design functionalization these high‐profile are still scarce. Accordingly, this review first systematically summarizes recent advances in after a brief clarification about selection sources self extraneous sources. Afterward, strategies, nanosizing, porosification, magnesiothermic reduction material well heteroatom modification material, specifically highlighted. Besides, applications Si/C‐based elaborated. Finally, discusses challenges prospects application energy storage provides nuanced viewpoint regarding topic.
Language: Английский
Citations
43
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(14)
Published: Jan. 26, 2024
Abstract Ultrathin all‐solid‐state electrolytes with an excellent Li + transport behavior are highly desirable for developing high‐energy‐density solid‐state lithium metal batteries. However, how to balance the electrochemical performance and their mechanical properties remains a huge challenge. Herein, ultrathin solid electrolyte membrane thickness of only 3 µm weight 11.7 g m −2 is well constructed by integrating individual functionalized organic inorganic modules. Impressively, optimized hybrid shows set merits including high room‐temperature ionic conductivity 1.77 × 10 −4 S cm −1 , large transference number 0.65, strong strength (strength 29 MPa, elongation 95%), as negligible thermal shrink at 180 °C. The analysis results reveal that sulfonate‐functionalized mesoporous silica nanoparticles in play crucial role selective through anion trapping cation exchange. pouch full cell further assembled high‐voltage NCM cathode thin anode, which exhibits long‐term cycling stability, outstanding rate room temperature, safety against abused conditions. current work provides innovative strategy achieving batteries electrolytes.
Language: Английский
Citations
22
Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 978, P. 173507 - 173507
Published: Jan. 15, 2024
Language: Английский
Citations
21
Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(9), P. 7693 - 7732
Published: April 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.
Language: Английский
Citations
20
Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 97, P. 30 - 45
Published: May 29, 2024
Language: Английский
Citations
18
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(18)
Published: Jan. 24, 2024
Abstract Silicon is a promising anode material in lithium‐ion batteries (LIBs) for its ultra‐high theoretical capacity; however, large volume expansion and low electrical conductivity trigger capacity degradation poor stability. Herein, an ultra‐low 4.3 wt% Si‐doped porous MoC (p‐Si@MoC) constructed by facile thermal reduction on core‐shelled precursor of ZnMo‐hybrid zeolitic imidazole framework (HZIF‐ZnMo) coated tetraethyl orthosilicate (TEOS), delivering high superior cycling stability (976.6 mAh g −1 after 250 cycles at 0.2 A ) LIBs. The homogeneous distribution the matrix contributes to maximum utilization. Meanwhile, substrate enhances Li ion transport kinetics reduced Si. excellent electronic p‐Si@MoC revealed density functional theory (DFT) calculations. Mo─Si bonds formed are verified X‐ray absorption near‐edge structure (XANES) extended fine (EXAFS). Moreover, situ diffraction (in XRD) reveals lithium storage mechanism. This work presents structural design synthesis strategy high‐performance silicon‐based materials.
Language: Английский
Citations
16