Edge‐Delocalized Electron Effect on Self‐Expediating Desolvation Kinetics for Low‐Temperature Li─S Batteries DOI Creative Commons
Yong‐Zheng Zhang, Xiang Li, Yanli Wang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 16, 2025

Abstract Lithium‐sulfur (Li─S) batteries suffer from significant capacity degradation, which is limited by high barriers interfacial desolvation, Li + transportation to sulfur redox conversions, exhibiting the depressive kinetics. Herein, electron effect in edge of catalysts modulated and corresponding strategy self‐transform Schottky heterojunction on MXene proposed achieve delocalized electronic density. As a protocol, electron‐delocalized boron‐doped MXene/TiO 2 (SH‐MTB) fabricated as electrochemical kinetic accelerators realize fast desolvation promote rapid conversion kinetics under low‐temperature. Specifically, with expedites dissociation [Li(solvents) x ] generate free ions, well‐confirmed theoretical calculations ex‐situ/in situ characterizations. Encouragingly, higher practical areal (5.0 mAh cm −2 ) negligible self‐discharge behaviors are achieved low‐temperature environments. A large pouch cell 200 mg s exhibits 9.3 lean electrolyte amount (5 µL −1 ), much better than state‐of‐art reports. further indicated microscopies, spectroscopical measurements X‐ray tests, SH‐MTB stabilizes chemical structure during charge/discharge process, showing promising potential heterostructure toward accelerating cascade carrier metal battery

Language: Английский

Enhancing Li-S Battery Performance by Harnessing the Power of Single Atoms on 2D Borophene DOI

Normurоt Fayzullaev,

M. Keshavarz, Mohammad Omidi

et al.

Electrochimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 145831 - 145831

Published: Feb. 1, 2025

Language: Английский

Citations

3
Catalytic Metal‐Organic Framework‐Functionalized Inverse‐Opal Architectured Polymeric Separator for High‐Performance Li‐S Batteries DOI
Xin Yang, Zongfu An,

Peng Zhang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

Abstract Separators are crucial in lithium‐sulfur batteries (LiSBs) to ensure optimal ion transport and prevent internal short circuits. High‐performance separators with excellent thermal stability, electrolyte wettability, porosity, Li + selectivity essential for the safety enhancing energy density of LiSBs. This is particularly important mitigating polysulfide (LiPS) shuttling, which degrades both capacity cycling stability In this work, a novel separator design high‐performance LiSBs introduced that combines poly(ether ether ketone) (PEEK)‐based inverse opal (PIO) architecture an situ grown cobalt‐imidazole metal‐organic framework ZIF‐67 on polymeric surface. The PIO provides improved conductivity due unique structural characteristics thermal/mechanical properties PEEK. Additionally, imparts enhanced electrochemical system through its selective permittivity LiPS. chemical configuration significantly suppresses LiPS shuttling; negative imidazole sites accelerate mobility while Lewis acidic Co 2+ centers strongly interact S x 2− base. Consequently, developed exhibits remarkable inhibition shuttling synergistic effects from acid‐base interactions physical separator. It also demonstrates effective regulation Li‐dendrite growth, leading With greatly performance, rate capability, ZIF‐PIO presented work promising solution practical applications.

Language: Английский

Citations

3
P-band center modulated and heterostructure stabilized 1T-MoS2 as bidirectional electrocatalyst for lithium-sulfur batteries DOI

Duanfeng Xiong,

Tiao Liu,

Jianbo Xie

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 685, P. 998 - 1007

Published: Jan. 21, 2025

Language: Английский

Citations

2
Accelerating sulfur reduction kinetics through establishing a balancing network in adsorption-catalysis-conversion of polysulfide by sulfur-affinity metal iron DOI
Guanyu Mu,

Min Hu,

Xinlong Tian

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 687, P. 353 - 364

Published: Feb. 11, 2025

Language: Английский

Citations

1
Curvature-Induced Electron Delocalization Activates the Bifunctional Catalytic Activity of COF/MXene for High-Performance Lithium–Sulfur Batteries DOI Creative Commons
Yanhui Zhuang, Hao Yang, Yuhang Li

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Covalent organic frameworks (COFs) have shown promise as bifunctional catalysts to simultaneously mitigate shuttle effects and Li dendrite issues of lithium–sulfur (Li–S) batteries. However, the inherent low conductivity COFs has significantly limited their catalytic activity stability. Herein, durability COF/MXene heterostructure are activated by tuning surface curvatures interfaced with MXene. The increased curvature could induce enhanced electron delocalization alter geometry, which in turn strengthens lithium polysulfide adsorption, lowers energy barriers, stabilizes sites promote sulfur redox reactions. Concurrently, hierarchical structure improves electrolyte penetration wettability, facilitates rapid ion transport, homogenizes Li-ion flux distribution, thus achieving uniform deposition. Consequently, 1D-COF/MXene Li–S batteries demonstrate a high-rate capacity 926 mA h g–1 at 4C, stable cycling performance reversible 589 3C after 500 cycles, high 604 cm–2 loading 3.5 mg under electrolyte-to-sulfur ratio 10 μL mg–1. This work offers an efficacious approach regulate stability catalysts.

Language: Английский

Citations

1
Accelerated Polysulfide Conversion by Rationally Designed NiS2‐CoS2 Heterostructure in Lithium–Sulfur Batteries DOI
Xing Ye, Fang Wu, Zhiyu Xue

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

Abstract Lithium–sulfur (Li–S) batteries are considered as potential candidates for future‐oriented energy storage systems. However, their practical deployment is hampered by the shuttle effect and sluggish reaction kinetics of lithium polysulfides (LiPSs). A key strategy to mitigate these challenges develop efficient heterojunction catalysts enhance suppress effect. In this study, a NiS 2 ‐CoS introduced address with density functional theory (DFT) calculations employed determine optimal combination from 5 × crystal plane configurations. The identified (210)‐CoS (200) demonstrates excellent anchoring effects catalytic properties LiPSs, significantly enhancing rate performance (839.9 mAh g −1 at C 730.8 3 C) cycling stability. Furthermore, in situ Raman X‐ray diffraction (XRD) analyses reveal that rapidly catalyzes conversion reducing migration toward anode thereby suppressing design transition metal sulfide heterojunctions offers an approach accelerating polysulfide kinetics, effectively addressing limitations Li–S batteries.

Language: Английский

Citations

4
Electrospray and Assembly of PEDOT:PSS on Silver Nanowires for Multifunctional Stretchable Electronic Membranes DOI
Ming Li, Wei Peng,

Chunfa Ye

et al.

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Language: Английский

Citations

0
Lower reorganization energy raise Marcus electron transfer rate and enable fast reaction kinetics in lithium-organosulfur batteries DOI
Yawen Zheng, Wenwu Liu, Huigang Shen

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 688, P. 443 - 455

Published: Feb. 22, 2025

Language: Английский

Citations

0
Win-win cooperation of boron-doped C3N5 porous nanosheets and CoSe2 nanorods for promoting cathodic sulfur conversion in lithium–sulfur batteries DOI

Yunxiao Zhang,

Mengting Wang, Bing Chen

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161776 - 161776

Published: March 1, 2025

Language: Английский

Citations

0
Synergistic Promotion of Adsorption-Conversion for Lithium Polysulfides through Ion/Electron Coconductive Catalytic Triple-Phase Interface by the Geometric Torsion of Lithium Lanthanum Titanate Electrocatalyst DOI
Huan Wang, Boyu Li,

Yanlei Shen

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Rationally designing and constructing ionic/electronic coconductor electrocatalysts with adjustable active sites to enhance the redox kinetics of lithium–sulfur batteries (LSBs) in lean electrolyte conditions is a challenge. Herein, this study presents promotion for lithium polysulfides (LiPSs) through construction ion/electron coconductive catalytic triple-phase interface using lanthanum titanate/carbon (LLTO/C) nanofibers, which due manipulating geometric torsion BO6 octahedron LLTO. Experiments theoretical calculations demonstrate that changes coordination environment O–Ti–O LLTO causes oxygen vacancy lattice distortion. This enhances local electronic state density, ion migration rate, high activity LLTO, thereby resulting synergistic effect good chemisorption rapid conversion LiPSs. Therefore, when modified separator used, LSBs electrocatalyst realize discharge capacity 1024 mA h·g–1 at current rate 2 C. Upon sulfur loading 9 mg ·cm–2 electrolyte/sulfur ratio 4 μL· mg–1, an acceptable areal 9.1 h· cm–2 achieved. work provides new perspective rational design catalysts LSBs.

Language: Английский

Citations

0