Nano Research, Journal Year: 2024, Volume and Issue: 18(2), P. 94907186 - 94907186
Published: Dec. 13, 2024
Language: Английский
Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 21, 2025
Abstract Layered transition metal dichalcogenides (LTMDs), such as MoS 2 , are promising anode materials for high‐energy‐density lithium‐ion batteries (LIBs) due to their high specific capacities. However, practical applications hindered by poor cycling stability resulting from the instable structure during charge/discharge and inherently low electronic conductivity. To tackle these issues, herein, this study presents design synthesis of spongy silicon‐doped induced long‐chain molecules in mesopores. The material consists few‐layered nanofragments with porosity, abundant edge sites sulfur vacancies. These structural features can promote Li + transport accommodate electrode volume changes charge/discharge. Electrochemical theoretical analyses reveal that silicon doping enhances conductivity while nanostructure enables reversible Li⁺ diffusion along edges, distinct storage interlayers conventional anodes. Notably, delivers a capacity 767.9 mAh g −1 at 0.1 A exhibits remarkable rate capability. Moreover, it demonstrates superior over 83% retention even after 1000 cycles 1.0 outperforming most existing ‐based materials. This work paves new way designing high‐performance LTMD‐based anodes LIBs beyond.
Language: Английский
Citations
1
Advanced Science, Journal Year: 2024, Volume and Issue: unknown
Published: July 25, 2024
Lithium-ion batteries with transition metal sulfides (TMSs) anodes promise a high capacity, abundant resources, and environmental friendliness, yet they suffer from fast degradation low Coulombic efficiency. Here, heterostructured bimetallic TMS anode is fabricated by in situ encapsulating SnS
Language: Английский
Citations
6
Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179344 - 179344
Published: Feb. 1, 2025
Language: Английский
Citations
0
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: May 13, 2025
Abstract While the high theoretical capacity and low operating voltage of Li 3 VO 4 (LVO) make it an ideal anode material for lithium‐ion batteries (LIBs), its unsatisfactory high‐rate performance lack efficient methods designing LVO anodes severely hinder application in fast‐charging LIBs. Herein, self‐adaptively tuning built‐in electric field is first adopted demonstrated as a valid strategy to design LVO‐based anodes, using specifically designed heterostructure nanoparticles situ grown on industrial waste yeast cell wall‐derived carbon (C@LVO). A from external inner C C@LVO accelerates + diffusion during lithiation. After full lithiation, new heterojunction y C@Li 3+ x forms with flipped field. This adaptive reversal both lithiation delithiation, consistently triggering excellent reaction kinetics. The as‐synthesized exhibits exceptional reversible 855.0 mAh g −1 impressive rate (500 /5 ). Furthermore, C@LVO‖LiFePO demonstrates capability, achieving 223.5 Wh kg at 9.1 kW , while maintaining 95.8% retention after 2000 cycles. work provides way construct which may pave practical LVO.
Language: Английский
Citations
0
Molecules, Journal Year: 2024, Volume and Issue: 29(18), P. 4513 - 4513
Published: Sept. 23, 2024
In this work, a MoS2/C heterostructure was designed and prepared through an in situ composite method. The introduction of carbon during the synthesis process altered morphology size MoS2, resulting reduction flower-like structures. Further, by varying content, series characterization methods were employed to study structure electrochemical lithium storage performance composites, revealing effect content on morphology, characteristics, composites. experimental setup included three sample groups: MCS, MCM, MCL, with glucose additions 0.24 g, 0.48 0.96 respectively. With increasing MoS2 initially decreases, then increases. Among these, MCM exhibits optimal structure, characterized smaller dimensions less variation. results showed that exhibited excellent performance, reversible specific capacities 956.8, 767.4, 646.1, 561.4 mAh/g after 10 cycles at 100, 200, 500, 1000 mA/g,
Language: Английский
Citations
2
ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(20), P. 23989 - 23998
Published: Oct. 7, 2024
Vanadium-sulfide-based materials, known for their structural diversity, multielectron redox capability, and cost-effectiveness, have emerged as prospective anodic materials advanced lithium-ion batteries (LIBs). However, the drawbacks of poor stability significant kinetic sluggishness greatly hinder practical implementation. Here, a three-dimensional network heterostructured nickel-sulfide/vanadium-sulfide/carbon composite was successfully fabricated, which formed by irregular NiS2/VS4 nanoparticles tightly anchored to cellulose-derived carbon fibers (CFs). Simultaneously, nanofibrous NiS2/VS4/CF effectively suppressed aggregation bimetallic sulfide during lithiation delithiation process when applied an material LIBs, significantly mitigated volume expansion cycling, remarkably enhanced electronic/ionic transport across entire electrodes. The delivered high discharge capacity 938.6 mAh g–1 at 0.1 A fast-rate capability 642.3 2 g–1. Kinetic analysis demonstrated that heterostructure contributed formation stable solid electrolyte interphase charge transfer interface, facilitating electron ion transport, underscoring essential role adjustment achieve effective lithium storage property. This work presents facile cost-effective pathway synthesize cellulose substance-derived nanocomposite energy applications.
Language: Английский
Citations
0
Nano Research, Journal Year: 2024, Volume and Issue: 18(2), P. 94907186 - 94907186
Published: Dec. 13, 2024
Language: Английский
Citations
0