Si nanoparticles enclosed in hierarchically structured dual-component porous carbon as superior anode for lithium-ion batteries: Structure formation and properties investigation

Energy storage materials, Год журнала: 2024, Номер 70, С. 103547 - 103547

Опубликована: Июнь 1, 2024

Язык: Английский

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Promoted de-solvation effect and dendrite-free Zn deposition enabled by in-situ formed interphase layer for high-performance zinc-ion batteries

Energy Materials, Год журнала: 2025, Номер 5(3)

Опубликована: Янв. 11, 2025

The use of aqueous electrolytes and Zn metal anodes in Zn-based energy storage systems provides several benefits, including competitive density, excellent safety, low cost. However, dendrites growth slow ion transfer at the electrode/electrolyte interphase reduce cycle stability rate capability anode. Herein, V2O5-x interface layer was rationally controllably constructed on surface through situ spontaneous redox reaction between V2O5 layer, with an optimized thickness, plays a crucial role screening de-solvation, leading to uniform dispersion Zn2+ ions dendrite-free morphology. Moreover, as transports V element low-valence state allows oxygen anions bind more easily Zn2+. This interaction enables fast diffusion channel interfacial layer. Consequently, symmetric cells V@Zn achieve stable plating/stripping for than 1400 h 1 mA cm-2. In particular, full cell paired cathode exhibits capacity nearly 275.9 g-1 5 A after 2500 cycles without obvious deterioration, further highlighting potential practical applications.

Язык: Английский

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Sucralose with bifunctional groups as a functional additive enhancing the interfacial stability of zinc metal anodes via interfacial molecular chemistry regulation

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(31), С. 20229 - 20237

Опубликована: Янв. 1, 2024

Sucralose is proposed as a functional electrolyte additive to regulate the solvation structure of Zn 2+ near interface electrode/electrolyte for inhibiting dendrite formation and facilitating uniform metal plating.

Язык: Английский

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Recent research progress in the design and modification of zinc metal anodes for aqueous zinc ion batteries

Journal of Energy Storage, Год журнала: 2024, Номер 101, С. 113686 - 113686

Опубликована: Сен. 14, 2024

Язык: Английский

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Comprehensive crystallographic engineering for high-efficiency and durable zinc metal anodes

Progress in Materials Science, Год журнала: 2025, Номер unknown, С. 101453 - 101453

Опубликована: Фев. 1, 2025

Язык: Английский

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MXene functionalized cathodes, anodes, and separators for batteries

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160809 - 160809

Опубликована: Фев. 1, 2025

Язык: Английский

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Engineering low-cost multifunctional carbon interface layer with hydrophobic negative surface and oriented zinc deposition dynamics for dendrite-free zinc ion batteries

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 690, С. 137338 - 137338

Опубликована: Март 15, 2025

Язык: Английский

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Multifunctional Janus Separator Engineering for Modulating Zinc Oriented Aspectant Growth and Iodine Conversion Kinetics toward Advanced Zinc‐Iodine Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 20, 2025

Abstract Zinc‐iodine (Zn‐I 2 ) batteries are deemed as promising next‐generation energy storage devices in view of immanent security and high capacity. Nevertheless, their applications deteriorated by unruly dendritic Zn growth, severe polyiodide diffusion, sluggish iodine redox kinetics. Herein, MXene‐mediated Janus separators with heterogeneous double‐sided interfaces designed to simultaneously manipulate deposition accelerate adsorption‐conversion The anode side is composed zincophilic Cu‐modified hollow MXene spheres, which not only decreases nucleation barrier but also suppresses dendrite growth homogenizing electric field distribution inducing oriented aspectant dendrite‐free between the separator anode. While cathode side, consisting iodophilic Co‐modified N‐doped inhibits shuttling promotes electrocatalytic conversion through Co‐N‐C sites. Such an ingenious engineering achieves a durable circulation over 2900 h for Zn||Zn symmetric cells brings about ultrahigh capacity 274 mAh g −1 Zn‐I well ignorable decay (0.001% per circle) after 20 000 cycles. concept design integrating interfacial chemistry regulation physical structure optimization this work provides inspiration constructing advanced exceptional overall performance.

Язык: Английский

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Constructing Autoregulative Electric Double Layer Through Dielectric Effect Toward Fast Charging Zinc Metal Anode

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 19, 2025

Abstract The inhomogeneous dendrite growth and parasitic side reactions of Zn anodes as well its sluggish solvation/de‐solvation kinetics severely hinder the practicalization fast charging Zn‐ion batteries. Regulating electric double layer (EDL) structure is an effective strategy to address these issues. Herein, a perovskite dielectric ZnTiO 3 (ZTO) designed on anode construct autoregulative EDL for achieving capability. ZTO can spontaneously generate surface charge with external voltage regulate structure, which results in increased/decreased capacitance under plating/stripping potential respectively, leading promoted 2+ rapid reaction kinetics. Meanwhile, H 2 O‐insufficient environment created by self‐regulated uniform field prevent during deposition process. Attributed feature, ZTO@Zn exhibits excellent cycle stability over 2850 h at 1 mA cm −2 symmetrical cells. Even high current density 50 , it still stable 230 h. Additionally, assembled ZTO@Zn//AC supercapacitor demonstrates ultralong lifetime 140 000 cycles 5 A g −1 . This work provides regulation realize capability metal practical application.

Язык: Английский

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Heterojunction and vacancy engineering strategies and dual carbon modification of MoSe2-x@CoSe2-C /GR for high-performance sodium-ion batteries and hybrid capacitors

Journal of Colloid and Interface Science, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Язык: Английский

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