New Redox Chemistries of Halogens in Aqueous Batteries DOI
Ruiyong Chen

ChemSusChem, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 22, 2024

Halogen-based redox-active materials represent an important class of in aqueous electrochemistry. The existence versatile halogen species and their rich bonding coordination create great flexibility designing new redox couples. Novel reaction mechanisms electrochemical reversibility can be unlocked specifically configurated electrolyte environments electrodes. In this review, the halogen-based couples appealing chemistries batteries, including flow batteries traditional static that have been studied recent years, are discussed. New electrochemistry provides hope to outperform state-of-the-art systems facing resources performance limitation, enrich existing battery chemistries.

Language: Английский

Biomimetic and biodegradable separator with high modulus and large ionic conductivity enables dendrite-free zinc-ion batteries DOI Creative Commons
Guohong Ma, Hongli Chen, Minfeng Chen

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 25, 2025

The advancement of aqueous zinc-based batteries is greatly restricted by zinc dendrites. One potential solution to this challenge lies in the employment high-modulus separators. However, achieving both high modulus and large ionic conductivity a single separator remains formidable task. Inspired wood architecture, study breaks trade-off designing an anisotropic biodegradable separator. This design significantly improves along oriented direction while simultaneously facilitating fast Zn2+ ion transport through aligned vertical channels. Additionally, configuration resolves contradiction between low thickness good dendrite-inhibition capability. These benefits are supported finite element simulations comprehensive experimental validation, which also underscore critical role enhancement for By employing separator, prolonged life span realized Zn||Zn cells, with improved cyclability full batteries. work presents strategy modification towards dendrite-free metal plays crucial mitigating dendrites side reactions zinc-ion Here, authors break ability.

Language: Английский

Citations

3
Urea Chelation of I+ for High-Voltage Aqueous Zinc–Iodine Batteries DOI
Cuicui Li, Haocheng Li,

Xiuyun Ren

et al.

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

Published: Jan. 7, 2025

The multielectron conversion electrochemistry of I–/I0/I+ enables high specific capacity and voltage in zinc–iodine batteries. Unfortunately, the I+ ions are thermodynamically unstable highly susceptible to hydrolysis. Current endeavors primarily focus on exploring interhalogen chemistry activate I0/I+ couple. However, practical working is below theoretical level. In this study, redox couple fully activated, efficiently stabilized by a chelation agent cost-effective urea conventional aqueous electrolyte. A record-high plateau 1.8 V vs Zn/Zn2+ has been realized. Theoretical calculations combined with spectroscopy studies electrochemical tests reveal that coordination between electron-deficient electron-rich O N atoms molecules favorable for inhibits self-disproportionation I+, which turn promotes rapid kinetics excellent reversibility I0/I+. Moreover, decreases water activity electrolyte forming hydrogen bonds further suppress hydrolysis I+. Accordingly, 419 mAh g–1 delivered at 1C, 147 retained after 10,000 cycles 5C. This work offers effective insights into formulating halogen-free electrolytes high-performance

Language: Английский

Citations

2
Polyelectrolyte Membrane Enables Highly Reversible Zinc Battery Chemistry via Immobilizing Anion and Stabilizing Water DOI
Yubin He, Rui Zhang, Peichao Zou

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

The integration of water-based electrolytes into zinc-ion batteries encounters challenges due to the limited voltage window water, interfacial side reactions mobile counterions, and growth zinc metal (Zn0) dendrites during charge. In this study, we introduce a nonfluorinated, cation-conducting polyelectrolyte membrane (PEM) designed alleviate these by suppressing reactivities both water counterions. This PEM forms hydrogen bonds with molecules through its proton-accepting chains, thus shifting lowest unoccupied molecular orbital (LUMO) energy from −0.37 −0.14 eV inducing negative shift in onset potential for evolution 110 mV. Additionally, it immobilizes counteranions onto polymer backbones via covalent bonding, hence making Zn2+ transference number nearly unity (0.96). Meanwhile, high modulus establishes solid-state diffusion barrier homogenize flux, leading 3D in-plane compact Zn0 plating within (002) plane. Atomic resolution scanning transmission electron microscopy (STEM) reveals corrosion-free deposition without electrolyte degradation, while operando transition X-ray (TXM) further illustrates real-time dendrite-free process at 5 mA/cm2. Consequently, unique properties water-binding anion-tethering enable enhanced electrochemical performance employing highly fluorinated expensive anions. demonstrates durability 3800 h Zn0–Zn0 symmetric cells lifetime 6000 cycles Zn0–LiV3O8 full cells.

Language: Английский

Citations

2
Collagen‐Mediated Solvent Sheathing and Derived Interfacial Manipulation Toward Ultrahigh‐Rate Zn Anodes DOI
Jinyu Gao,

Bin Qiu,

Jie Huang

et al.

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

Published: Sept. 2, 2024

Abstract The zinc (Zn) anode in zinc‐ion batteries suffers from potential defects such as wild dendrite growth, severe Zn corrosion, and violent hydrogen evolution reaction, inducing erratic interfacial charge transfer kinetics, which eventually leads to electrochemical failure. Here, collagen, a biomacromolecule, is added achieve the reconstruction of electrolyte hydrogen‐bonding network modification derived interface. Benefiting electronegativity advantage amino groups (‐NH 2 ) (002) crystal plane preferentially exposed solid interface (SEI) rich ZnF 3 N promotes rapid anode. Thence, an impressive cumulative capacity 7,500 mAh cm −2 at 30 mA achieved assembled Zn|VO cell exhibited robust cycle reversibility even when subject maximum current 100 A g −1 ultra‐long life 20,000 cycles 50 , with single‐cycle loss low 0.0021%. Such convenient strategy solvent sheathing regulation manipulation opening up promising universal approach toward long‐life high‐rate anodes.

Language: Английский

Citations

11
Water‐Lean Inner Helmholtz Plane Enabled by Tetrahydropyran for Highly Reversible Zinc Metal Anode DOI
Kai Fu,

Tingting Liu,

Meilan Xie

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(46)

Published: Aug. 17, 2024

Abstract The reversibility and stability of zinc (Zn) metal anode are closely related to inner Helmholtz plane (IHP) chemistry. H 2 O‐rich IHP raises severe parasitic reactions irregular Zn deposition, impeding the practical utility in aqueous Zn‐ion batteries (AZIBs). In this study, tetrahydropyran (THP), a five‐carbon heterocyclic ether with permanent dipole moment hydrophobic characteristic, is introduced as self‐adsorptive additive reshape IHP. It squeezes out partial O molecules forms O‐lean IHP, benefitting for alleviating active decomposition improving anode. Moreover, adsorbed THP induces preferential nucleation (002) plane, facilitating dendrite‐free growth Consequently, Zn||Zn symmetric cell enables cycle over 3600 h at 5 mA cm −2 @ 1 mAh . Zn||Cu half‐cell can stably 400 cycles 99.9% coulombic efficiency even under harsh test conditions (10 @5 ) 30 µm foil. Zn||NH 4 V 10 full maintains 92.6% capacity retention after 800 A g −1 Zn||I perform steadily 10000 decay rate merely 0.003% per C.

Language: Английский

Citations

10
Anion-Cation Synergy Enables Reversible Seven-Electron Redox Chemistry for Energetic Aqueous Zinc-Iodine Batteries DOI
Xixian Li,

Wenyu Xu,

Jianze Feng

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110884 - 110884

Published: March 1, 2025

Language: Английский

Citations

1
Liner-chain polysaccharide binders with strong chemisorption capability for iodine species enables shuttle-free zinc-iodine batteries DOI
Jie Zhang, Chao Qiu,

Chuancong Zhou

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110519 - 110519

Published: Nov. 1, 2024

Language: Английский

Citations

5
Relocating Conjugated 2P Valence Electrons in Carbon Host to Stabilize I+ for Novel Zn‐I2 Battery DOI Open Access
Pengfang Zhang,

Meng‐Meng Ma,

Xu Wu

et al.

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

Published: Jan. 6, 2025

Abstract Zn‐I 2 battery with four‐electron reaction path (I − /I + ) in the cathode delivers high energy density, which however is thermodynamically not favored as I metastable. Herein, it demonstrated that conjugated 2P valence electrons graphitic framework can be relocated, offering chances to stabilize species. Combinations of elements (B, N, C, O) various configurations are first screened computationally, identifying O─B─C─N optimal structure. In this B‐centered domain, adjacent O and meta‐positioned owing more higher electronegativity, found withdraw from surrounding C atoms enrich z orbital electron‐deficient B site at Fermi level; weak electronically enriched tends donate reactants, thus also enhance adsorption iodine species on carbon host. Carbon nanosheets abundant domains developed accordingly; relevant shows a large capacity 420.3 mAh g −1 coulombic efficiency 98.9% under 0.8 A ; moreover, stand for 9000 cycles retention 88.8%. This computation‐guided study presents how interplay 2p‐elements manipulated pursue an efficient host novel batteries.

Language: Английский

Citations

0
Glycol–water hybrid electrolyte contributing to excellent Mg ion storage in vanadium oxides heterojunction DOI

Haining You,

Zubang Liu,

Cheng Yang

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162588 - 162588

Published: Jan. 1, 2025

Language: Английский

Citations

0
Fundamentals, Advances and Perspectives in Designing Eutectic Electrolytes for Zinc-Ion Secondary Batteries DOI
Mengya Wang,

Zuojie Xu,

Chaowei He

et al.

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

Published: March 6, 2025

Zinc-ion secondary batteries have been competitive candidates since the "post-lithium-ion" era for grid-scale energy storage, owing to their plausible security, high theoretical capacity, plentiful resources, and environment friendliness. However, many encumbrances like notorious parasitic reactions Zn dendrite growth hinder development of zinc-ion remarkably. Faced with these challenges, eutectic electrolytes aroused notable attention by virtue feasible synthesis tunability. This review discusses definition advanced functionalities in detail divides them into nonaqueous, aqueous, solid-state regard state component electrolytes. In particular, corresponding chemistry concerning solvation structure regulation, electric double layer (EDL) structure, solid-electrolyte interface (SEI) charge/ion transport mechanism is systematically elucidated a deeper understanding Moreover, remaining limitations further are discussed electrolyte design extended applications.

Language: Английский

Citations

0