Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 683, P. 655 - 666
Published: Dec. 30, 2024
Language: Английский
Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 1, 2024
Language: Английский
Citations
4
Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 687, P. 353 - 364
Published: Feb. 11, 2025
Language: Английский
Citations
0
International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 305, P. 141279 - 141279
Published: Feb. 18, 2025
Language: Английский
Citations
0
Advanced Science, Journal Year: 2025, Volume and Issue: unknown
Published: March 31, 2025
Abstract Enhancing Li 2 S deposition and oxidation kinetics in lithium‐sulfur batteries, especially the potential‐limiting step under lean electrolyte, can be effectively achieved by developing conductive catalysts. In this study, using ZnMoO 4 as precursors, Zn‐doped molybdenum carbide microflowers (Zn‐Mo C) composed of speared porous sheets are fabricated with a hierarchically ordered structure. Density functional theory calculations indicate that Zn doping shifts d‐band center on Mo atoms C upward, promotes elevation certain antibonding orbitals Mo─S bonds above Fermi level, enhances d‐p interaction between lithium polysulfides (LiPSs) catalysts, weakens both S─S Li─S LiPSs. Incorporating significantly reduces Gibbs free energy barrier for rate‐limiting → conversion, from 0.52 eV to just 0.05 C. Thus, synthesized Zn‐Mo demonstrates impressive bifunctional electrocatalytic performance, advancing sulfur reduction decomposition. Moreover, modification charge transfer within C/LiPSs system, synergistically accelerating oxidation. The C/S cathode electrochemical achieves remarkable cycling stability minimal capacity decay 0.021% per cycle over 1000 cycles at 5 C, underscoring its potential high‐energy applications.
Language: Английский
Citations
0
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 15, 2025
Abstract Metal‐sulfur batteries (MSBs) are emerging energy storage candidates due to their high density, cost‐effective nature, and environmental compatibility. However, polysulfide shuttling, slow kinetics, dendritic issues severely plague nexus stage from academic commercial applications. Inspired by the low cost higher capacity of metal sulfur batteries, numerous strategies, electrode design separator modification, developed eliminate these challenges on practical grounds. Among them, functionalizing separators hold great promise stabilize battery operation mechanistically in terms safety, stability, electrochemical benchmarks, as existing polyolefin designs cannot fully satisfy complex chemistry polysulfides. This review first discusses critical with associated mechanistic approaches better describe requirement for material manipulation design. Furthermore, role modulated functional materials is critically highlighted screened synergistically achieve an advanced recent four‐year plethora separators. Finally, future directions outlined research. will offer a comprehensive reference new paths designing modulating advancing high‐energy‐density systems.
Language: Английский
Citations
0
Journal of Electroanalytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 119143 - 119143
Published: April 1, 2025
Language: Английский
Citations
0
Journal of Energy Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: April 1, 2025
Language: Английский
Citations
0
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: April 23, 2025
Lithium-sulfur (Li-S) batteries under low-temperature and lean electrolyte conditions for practical application are hindered by a sluggish conversion reaction, low sulfur utilization, cycling stability. Herein, we designed high-entropy (HE) mixing three Li salts. The HE simultaneously improves lithium sulfide (Li2S) reaction kinetics, cyclability due to the anticlustering effect on polysulfides, three-dimensional Li2S growth, robust anion-derived solid interphase layer formation, respectively. Consequently, exhibits high initial reversible capacity (1159.9 mAh g-1) stability 40 cycles electrolyte-to-sulfur ratio (3.5 μL mg-1) at pouch cell level. In addition, Li-S with decay of 0.01% per cycle during 200 -15 °C.
Language: Английский
Citations
0
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: April 26, 2025
Currently, most catalysts for lithium-sulfur batteries suffer from some shortcomings, including restricted active sites and poor catalytic kinetics. Herein, we developed an advanced catalyst of V-MXene@octahedral porous carbon (MX@OPC), which features a "built-in interfacial electric field" (BIEF) "dual-functional sites" (DCASs), to target the accelerated rate-determining step in polysulfide redox kinetics dendrite-free lithium behaviors. The well-designed heterointerface forms BIEF due differences work function charge distribution, contributing enhanced electron transfer low lithium-ion diffusion barriers. DCASs with superior Li2S4 desorption efficiently catalyze conversion Li2S2 by distribution relaxation times (DRT) analysis density functional theory (DFT) calculations. V-MXene exhibits strong lithophilicity, facilitates uniform nucleation growth lithium. As result, battery MX@OPC delivers capacity fade rate per cycle as 0.017% over 1200 cycles at 2 C. Furthermore, renders Li||Li symmetric cell maintain stable overpotential 16 mV 2500 h. This provides inspiring insights into directed catalysis generation toward accelerating rate-determining-step sulfur deposition Li-S batteries.
Language: Английский
Citations
0
Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 682, P. 1164 - 1174
Published: Dec. 6, 2024
Language: Английский
Citations
1