Oxygen Vacancies‐Rich CeO_2–X Nanocrystalline Embedded in N‐Doped Carbon Matrix toward High‐Performance Lithium–Sulfur Batteries

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Abstract The sluggish redox kinetics of lithium polysulfides (LiPSs) and their shuttle behavior are regarded as the key issues to commercial application lithium–sulfur (Li–S) batteries. Here, a novel LiPSs immobilizer catalytic promoter is proposed by introducing oxygen‐vacancy‐rich cerium dioxide (CeO 2– X ) nanocrystalline embedded in N‐doped carbon skeleton @NC) investigated modified separator Li–S Density functional theory calculations, UV– vis diffusion reflection spectra, X‐ray photoelectron spectroscopy indicate that oxygen vacancies can tailor intrinsic electron band structure CeO nanocrystalline, which able improve ion conductivity. This leads enhanced adsorption realize targeted acceleration conversion for LiPSs. In return, sulfur cathodes based on @NC demonstrate both stable long‐lifespan cyclability (over 1000 cycles at 4 C) superior rate performance (up C). Additionally, high areal capacity 5.61 mAh cm −2 loading 7.09 mg also achieved. work underscores imperative incorporating defect heterostructure engineering enhance fast charge–discharge capability stability batteries, offering new approach potential applications.

Язык: Английский

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Machine-learning-assisted Design of Cathode Catalysts for Metal-Sulfur/Oxygen/Carbon Dioxide Batteries

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104261 - 104261

Опубликована: Апрель 1, 2025

Язык: Английский

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Modifying Separators with a Multistrategy-Constructed (ZnCo)₃S₄–MoS₂ Heterostructure for High-Performance Lithium–Sulfur Batteries

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 16, 2025

Язык: Английский

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Electronegativity-induced modulation of polysulfide adsorption in halogen-doped Ni2P to accelerate conversion kinetics for lithium-sulfur batteries

Journal of Energy Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

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Synergistic improvement of the sulfur redox reaction by MOF-driven dual-defect polyhedral Mn-doped Co1-xS embedded in an N-doped carbon composite host for practical lithium-sulfur batteries

Electrochimica Acta, Год журнала: 2024, Номер 506, С. 145070 - 145070

Опубликована: Сен. 16, 2024

Язык: Английский

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