Chinese Chemical Letters, Год журнала: 2024, Номер unknown, С. 110731 - 110731
Опубликована: Дек. 1, 2024
Язык: Английский
Small, Год журнала: 2025, Номер unknown
Опубликована: Фев. 24, 2025
Abstract Lithium‐sulfur (Li‐S) batteries are recognized as a most promising energy storage technology for their high theoretical density, abundant sulfur resources, and environmental friendliness. Nonetheless, practical applications of Li‐S currently hindered by obstacles such the shuttle effect lithium polysulfides (LiPSs), sluggish reaction kinetics, formation Li dendrites. Heterostructured electrocatalysts can achieve synergistic adsorption‐catalysis LiPSs regulating component composition to accelerate electrochemical guide uniform deposition Li. Electrospinning has emerged versatile approach precise fabrication heterostructured nanomaterials, advantages including tunable composition, controlled fiber diameter, diverse pore structures, flexible morphological heterogeneous interfacial design. In this contribution, latest research progress on heterostructures constructed electrospinning is reviewed. Initially, definition outlined mechanisms promote kinetics in analyzed. Subsequently, principles influencing factors constructing based discussed. The application cathodes, separators, anodes further comprehensively Finally, issues identified, corresponding effective solutions provided. This review intended inspire design construction efficient batteries.
Язык: Английский
Процитировано
2
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 14, 2025
Abstract High redox kinetic barriers and the severe shuttle effect of lithium polysulfides (LiPSs) are two primary challenges for practical deployment lithium‐sulfur (Li–S) batteries. Herein, highly dispersed Co nanoparticles embedded into S, N co‐doped hollow chained carbon sphere (Co@SNC) well‐designed prepared served as an effective host catalyst Li–S Doped S‐atoms can effectively modulate electronic metal‐support interaction between matrix, which induces charge redistribution increased d‐orbital energy levels. Co@SNC provide strong chemical with LiPSs reduce Li + diffusion barrier, anchor accelerate conversion kinetics. The chain‐like structure also synergistically suppresses shuttling enables high sulfur loadings rapid charge/mass transfer. These merit batteries based on reversible capacity, impressive rate performance, prolong cycling stability a low capacity decay 0.024% per cycle over 1700 cycles. Notably, Co@SNC/S electrode still delivers initial 814.9 mAh g −1 superior performance even at loading poor electrolytes.
Язык: Английский
Процитировано
1
Batteries, Год журнала: 2025, Номер 11(4), С. 139 - 139
Опубликована: Апрель 3, 2025
Lithium–sulfur batteries (LSBs), with a high energy density (2600 Wh kg−1) and theoretical specific capacity (1672 mA h g−1), are considered the most promising next-generation rechargeable storage devices. However, polysulfide dissolution shuttle effect cause severe fading rapid loss of active material; hence, these must be addressed first. This review provides an overview various strategies employed to immobilise polysulfides via trapping physical chemical adsorption using porous cathode designs, heterostructures, functionalised separators, polymer binders. The working mechanism each strategy is reviewed discussed, highlighting their advantages disadvantages, they analysed through comparisons battery performance limitations in terms practical applications. Finally, future prospects for design synthesis LSBs limit discussed.
Язык: Английский
Процитировано
1
Chemical Engineering Science, Год журнала: 2024, Номер unknown, С. 120961 - 120961
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
5
Advanced Science, Год журнала: 2024, Номер unknown
Опубликована: Дек. 4, 2024
Abstract Lithium–sulfur (Li‐S) batteries represent a promising solution for achieving high energy densities exceeding 500 Wh kg −1 , leveraging cathode materials with theoretical up to 2600 . These are also cost‐effective, abundant, and environment‐friendly. In this study, an innovative approach is proposed utilizing highly oxidized single‐walled carbon nanotubes (Ox‐SWCNTs) as conductive fibrous scaffold functional interlayer in sulfur cathodes separators, respectively, demonstrate large‐area ultra‐flexible Li‐S enhanced density. The free‐standing the cells exhibit density maintaining 806 mAh g even after 100 charge‐discharge cycles. Additionally, oxygen‐containing groups on SWCNTs significantly improve electrochemical performance by promoting adsorption of lithium polysulfides. Employing Ox‐SWCNTs both interlayers, study achieves high‐capacity pouch that consistently deliver capacity 1.06 Ah 909 over 50 This strategy not only enhances but maintains excellent mechanical flexibility under severe deformation, positioning Ox‐SWCNT‐based architecture viable, light‐weight, storage suitable commercializing rechargeable batteries.
Язык: Английский
Процитировано
4
Nano Letters, Год журнала: 2024, Номер unknown
Опубликована: Дек. 9, 2024
MoS
Язык: Английский
Процитировано
4
Chemistry - A European Journal, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 12, 2024
It is greatly crucial to develop low-cost energy storage candidates with high safety and stability replace alkali metal systems for a sustainable future. Recently, aqueous zinc-ion batteries (ZIBs) have received tremendous interest owing their low cost, safety, wide oxidation states, sophisticated fabrication process. Nanostructured manganese (Mn)-based oxides in different polymorphs are the potential cathode materials widespread application of ZIBs. However, Mn-based oxide suffer from several drawbacks, such as electronic/ionic conductivity poor cycling performance. To overcome these issues, various structural modification strategies been adopted enhance electrochemical activity, including phase/defect engineering, doping foreign atoms (e. g., and/or nonmetal atoms), coupling carbon or conducting polymers. Herein, this review targets summarize advantages disadvantages above-mentioned improve performance cathodic part The challenges suggestions development ZIBs put forward.
Язык: Английский
Процитировано
3
Energy storage materials, Год журнала: 2025, Номер 75, С. 104061 - 104061
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0
Materials Today, Год журнала: 2025, Номер unknown
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Small, Год журнала: 2025, Номер unknown
Опубликована: Март 18, 2025
Abstract Precisely modulating d‐p orbital coupling of single‐atom electrocatalysts for sulfur reduction reactions in lithium‐sulfur batteries maintains tremendous challenges. Herein, a dynamic d‐p‐π modulation is elucidated by unsaturated Fe centers on nitrogen‐doped graphitized carbon (NG) coordinated with trithiocyanuric acid featuring p‐π conjugation to engineer single atom architecture (Fe N4‐ S pπ ‐NG). Intriguingly, this coordination microenvironment the center dynamically reconstituted during charge/discharge processes, because formation trilithium salts rooted from departed axial ligands interfacial coating cathode, and then it recovers initial configuration. Theoretical experimental results unravel that conjugated ligand reinforcing enables charge interaction, thereby strengthening LiPSs adsorption, reducing Li 2 decomposition barrier Fe─S S─Li bonds. Thus, N4 ‐S endow considerable electrochemical performances, highlighting an intriguingly strategy electrocatalysts.
Язык: Английский
Процитировано
0