|Multi-perspective synergistic construction of dual-functional heterostructures for high-temperature Li-S batteries|
|Li, Yiding; Zhang, Qiang; Shen, Simin; Wang, Siqi; Shi, Liangliang; Liu, Dequan; Fu, Yujun; He, Deyan|
|Online publication date||2023-05
|Source Publication||CHEMICAL ENGINEERING JOURNAL
Impact Factor & Quartile|
|Abstract||Effectively limiting the shuttle effect is the key to improving the electrochemical performance of Li-S batteries. Here, the synthesis of WO3-WS2 heterostructures is reported by electrospinning and in situ sulfurization strategies, combining the initial WO3 nanoparticles with the sulfurization product WS2. It was found that the obtained bifunctional heterostructures enhance the electrolyte wettability, optimize intermediate regulation performance, accelerate Li+/e− diffusion, and thus exhibit excellent electrochemical characteristics in Li-S batteries. Through experiments and density functional theory (DFT) calculations, the WO3-WS2 heterostructures were considered as a coupled creative solution with multiple advantages. Different from the batteries using single-component or single-configuration catalyst, the prepared Li-S batteries with the WO3-WS2 heterostructures exhibited synergistic enhanced electrochemical performance and high-temperature crushing resistance. Even under severe conditions, including high sulfur loading (10.3 mg cm−2), lean electrolyte (5.8 μL mg−1), high current density (7.0 A g−1), extended cycling (1600 cycles), and high temperature (90 °C), the representative battery exhibited stable cycling performance. © 2023 Elsevier B.V.|
|Keyword||Density functional theory
Lithium sulfur batteries
|WOS Research Area||Engineering
|WOS Subject||Engineering, Environmental
; Engineering, Chemical
|EI Accession Number||20232114136036
|EI Keywords||Tungsten compounds
|EI Classification Number||702 Electric Batteries and Fuel Cells
; 702.1.2 Secondary Batteries
; 802.2 Chemical Reactions
; 803 Chemical Agents and Basic Industrial Chemicals
; 804 Chemical Products Generally
; 922.1 Probability Theory
; 931.3 Atomic and Molecular Physics
; 931.4 Quantum Theory
; Quantum Mechanics
|Original Document Type||Journal article (JA)
|Corresponding Author||Liu, Dequan; Fu, Yujun; He, Deyan|
|Affiliation||School of Materials and Energy, and LONGi Institute of Future Technology, Lanzhou University, Lanzhou; 730000, China|
|First Author Affilication||Lanzhou University
|Corresponding Author Affilication||Lanzhou University
Li, Yiding,Zhang, Qiang,Shen, Simin,et al. Multi-perspective synergistic construction of dual-functional heterostructures for high-temperature Li-S batteries[J].
CHEMICAL ENGINEERING JOURNAL,2023,468.
Li, Yiding.,Zhang, Qiang.,Shen, Simin.,Wang, Siqi.,Shi, Liangliang.,...&He, Deyan.(2023).Multi-perspective synergistic construction of dual-functional heterostructures for high-temperature Li-S batteries.CHEMICAL ENGINEERING JOURNAL,468.
Li, Yiding,et al."Multi-perspective synergistic construction of dual-functional heterostructures for high-temperature Li-S batteries".CHEMICAL ENGINEERING JOURNAL 468(2023).
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