Dendrite‐Free Zn Metal Anodes with Boosted Stability Achieved by Four‐in‐One Functional Additive in Aqueous Rechargeable Zinc Batteries DOI
Panpan Wang, Huiqin Zhou, Yi Zhong

et al.

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

Published: June 8, 2024

Abstract Zn interfacial issues involved dendrite evolution and undesired parasitic reactions are tough challenges to impede the progress of ion battery. Herein, dendrite‐free anode with boosted stability is achieved by four‐in‐one functional additive triethyl phosphate (TEP). Experiments theoretical calculation reveal that TEP participates in generation compact inorganic interface prevent from corrosion. Meanwhile, electrical double layer (EDL) reconstructed adsorbed molecules inner weakened 2+ solvation structure diffusion layer, which efficiently shields active H 2 O moderate electrochemical kinetics, thereby preventing water‐related secondary reaction electroplating on tip region. Additionally, manipulates zinc growth direction adsorbing (002) facet, thus enabling long‐lasting deposition. Accordingly, Zn||Zn symmetric cell demonstrates an ultralong lifespan over 5000 h (almost 7 months) at 1 mA cm −2 , mAh remarkable coulombic efficiency (CE) ≈97.6% for 1500 cycles. For practical demonstration, Zn||LiFePO 4 full improved rate capability elevated capacity 116.0 g −1 . These findings highlight chemistry manipulated multifunctional additives as efficient approach stabilize anode, holding promise top‐notch Zn‐based batteries longevity.

Language: Английский

Guiding Zn Uniform Deposition with Polymer Additives for Long‐lasting and Highly Utilized Zn Metal Anodes DOI

Doudou Feng,

Yucong Jiao, Peiyi Wu

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(51)

Published: Nov. 6, 2023

The parasitic side reaction on Zn anode is the key issue which hinders development of aqueous Zn-based energy storage systems power-grid applications. Here, a polymer additive (PMCNA) engineered by copolymerizing 2-methacryloyloxyethyl phosphorylcholine (MPC) and N-acryloyl glycinamide (NAGA) was employed to regulate deposition environment for satisfying inhibition performance during long-term cycling with high utilization. PMCNA can preferentially adsorb metal surface form uniform protective layer effective water molecule repelling resistance. In addition, guide nucleation along 002 plane further dendrite suppression. Consequently, enable Zn//Zn battery an ultrahigh depth discharge (DOD) 90.0 % over 420 h, Zn//active carbon (AC) capacitor long lifespan, Zn//PANI utilization 51.3 at low N/P ratio 2.6.

Language: Английский

Citations

99
Design Strategies for Aqueous Zinc Metal Batteries with High Zinc Utilization: From Metal Anodes to Anode-Free Structures DOI Creative Commons
Xian‐Fu Zhang, Long Zhang,

Xinyuan Jia

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Jan. 4, 2024

Aqueous zinc metal batteries (AZMBs) are promising candidates for next-generation energy storage due to the excellent safety, environmental friendliness, natural abundance, high theoretical specific capacity, and low redox potential of (Zn) metal. However, several issues such as dendrite formation, hydrogen evolution, corrosion, passivation Zn anodes cause irreversible loss active materials. To solve these issues, researchers often use large amounts excess ensure a continuous supply materials anodes. This leads ultralow utilization squanders density AZMBs. Herein, design strategies AZMBs with discussed in depth, from utilizing thinner foils constructing anode-free structures 100%, which provides comprehensive guidelines further research. Representative methods calculating depth discharge different first summarized. The reasonable modification foil anodes, current collectors pre-deposited Zn, aqueous (AF-AZMBs) improve then detailed. In particular, working mechanism AF-AZMBs is systematically introduced. Finally, challenges perspectives high-utilization presented.

Language: Английский

Citations

79
Engineering Fluorine‐rich Double Protective Layer on Zn Anode for Highly Reversible Aqueous Zinc‐ion Batteries DOI

Titi Li,

Sanlue Hu, Chenggang Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(51)

Published: Nov. 4, 2023

Abstract The high thermodynamic instability and side reactions of Zn‐metal anode (ZMA), especially at current densities, greatly impede the commercialization aqueous zinc‐ion batteries (AZIBs). Herein, a fluorine‐rich double protective layer strategy is proposed to obtain reversibility AZIBs through introduction versatile tetradecafluorononane‐1,9‐diol (TDFND) additive in electrolyte. TDFND molecule with large adsorption energy (−1.51 eV) preferentially absorbs on Zn surface form Zn(OR) 2 − (R=−CH −(CF ) 7 −CH −) cross‐linking complex network, which balances space electric field controls 2+ ion flux, thus enabling uniform compact deposition (002) crystal planes. Meanwhile, low Lowest unoccupied molecular orbital (LUMO, 0.10 level priorly decomposed regulate interfacial chemistry ZMA by building ZnF ‐rich solid electrode/electrolyte interface (SEI) layer. It found that 14 nm‐thick SEI delivers excellent structural integrity suppress parasitic blocking direct contact active water ZMA. Consequently, electrode exhibits superior cycling life over 430 h 10 mA cm −2 average Coulombic efficiency 99.8 % 5 . Furthermore, 68 mAh pouch cell 80.3 capacity retention for 1000 cycles.

Language: Английский

Citations

76
Orientational Electrodeposition of Highly (002)-Textured Zinc Metal Anodes Enabled by Iodide Ions for Stable Aqueous Zinc Batteries DOI
Wentao Yuan,

Xueyu Nie,

Yuanyuan Wang

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(23), P. 23861 - 23871

Published: Nov. 15, 2023

Regulating the crystallographic texture of zinc (Zn) metal anode is promising to promote Zn reversibility in aqueous electrolytes, but direct fabrication specific textured still remains challenging. Herein, we report a facile iodide ion (I-)-assisted electrodeposition strategy that can scalably fabricate highly (002) crystal plane-textured (H-(002)-Zn). Theoretical and experimental characterizations demonstrate presence I- additives significantly elevate growth rate (100) plane, homogenize nucleation, plating kinetics, thus enabling uniform H-(002)-Zn electrodeposition. Taking electrolytic cell with conventional ZnSO4-based electrolyte commercial Cu substrate as model system, gradually transforms from (101) increase NaI additive concentration. In optimized 1 M ZnSO4 + 0.8 electrolyte, as-prepared features compact structure an ultrahigh intensity ratio signal without containing signal. The free-standing electrode manifests stronger resistance interfacial side reactions than (101)-textured electrode, delivering high efficiency 99.88% over 400 cycles ultralong cycling lifespan 6700 h (>9 months at mA cm-2) assuring stable operation full batteries. This work will enlighten efficient electrosynthesis high-performance anodes for practical

Language: Английский

Citations

74
Steric‐hindrance Effect Tuned Ion Solvation Enabling High Performance Aqueous Zinc Ion Batteries DOI
Haozhen Dou, Xinru Wu,

Mi Xu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(21)

Published: March 12, 2024

Despite many additives have been reported for aqueous zinc ion batteries, steric-hindrance effect of and its correlation with Zn

Language: Английский

Citations

65
Cation‐Conduction Dominated Hydrogels for Durable Zinc–Iodine Batteries DOI
Jin‐Lin Yang, Tuo Xiao, Tao Xiao

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)

Published: Feb. 13, 2024

Abstract Zinc–iodine batteries have the potential to offer high energy‐density aqueous energy storage, but their lifetime is limited by rampant dendrite growth and concurrent parasite side reactions on Zn anode, as well shuttling of polyiodides. Herein, a cation‐conduction dominated hydrogel electrolyte designed holistically enhance stability both zinc anode iodine cathode. In this electrolyte, anions are covalently anchored chains, major mobile ions in restricted be 2+ . Specifically, such cation‐conductive results ion transference number (0.81) within guides epitaxial nucleation. Furthermore, optimized solvation structure reconstructed hydrogen bond networks chains contribute reduced desolvation barrier suppressed corrosion reactions. On cathode side, electrostatic repulsion between negative sulfonate groups polyiodides hinders loss active material. This all‐round design renders zinc–iodine with reversibility, low self‐discharge, long lifespan.

Language: Английский

Citations

61
Unlocking Dynamic Solvation Chemistry and Hydrogen Evolution Mechanism in Aqueous Zinc Batteries DOI

Xiaoyu Yu,

Ming Chen, Zhengang Li

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(25), P. 17103 - 17113

Published: June 13, 2024

Understanding the interfacial hydrogen evolution reaction (HER) is crucial to regulate electrochemical behavior in aqueous zinc batteries. However, mechanism of HER related solvation chemistry remains elusive, especially time-dependent dynamic bond (H-bond) under an electric field. Herein, we combine situ spectroscopy with molecular dynamics simulation unravel structure. We find two critical change processes involving Zn-electroplating/stripping, including initial double layer establishment form H

Language: Английский

Citations

43
Spontaneous Molecule Aggregation for Nearly Single‐Ion Conducting Sol Electrolyte to Advance Aqueous Zinc Metal Batteries: The Case of Tetraphenylporphyrin DOI

Jingjing Dong,

Long Su,

Huili Peng

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(21)

Published: March 27, 2024

Zn metal as a promising anode of aqueous batteries faces severe challenges from dendrite growth and side reactions. Here, tetraphenylporphyrin tetrasulfonic acid (TPPS) is explored an electrolyte additive for advanced anodes. It interesting to note that TPPS spontaneously assembles into unique aggregates. As they adsorb on the anode, aggregates enhance resistance percolation compared single molecules. Meanwhile, facilitates anion association in solvation sheath

Language: Английский

Citations

40
Recent advances in zinc-ion dehydration strategies for optimized Zn–metal batteries DOI
Haoyu Li, Sijie Li,

Ruilin Hou

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(15), P. 7742 - 7783

Published: Jan. 1, 2024

Aqueous Zn-metal batteries have attracted increasing interest for large-scale energy storage owing to their outstanding merits in terms of safety, cost and production. However, they constantly suffer from inadequate density poor cycling stability due the presence zinc ions fully hydrated solvation state. Thus, designing dehydrated structure can effectively address current drawbacks aqueous batteries. In this case, considering lack studies focused on strategies dehydration ions, herein, we present a systematic comprehensive review deepen understanding zinc-ion regulation. Two fundamental design principles component regulation pre-desolvation are summarized environment formation interfacial desolvation behavior. Subsequently, specific strategy based distinct carefully discussed, including preparation methods, working mechanisms, analysis approaches performance improvements. Finally, general summary issues addressed using strategies, four critical aspects promote presented as an outlook, involving updating (de)solvation theories, revealing evolution, enhancing techniques developing functional materials. We believe that will not only stimulate more creativity optimizing electrolytes but also provide valuable insights into other battery systems.

Language: Английский

Citations

39
Stable zinc anode solid electrolyte interphase via inner Helmholtz plane engineering DOI Creative Commons

Jinrong Luo,

Liang Xu,

Yinan Yang

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: July 31, 2024

The inner Helmholtz plane and thus derived solid-electrolyte interphase (SEI) are crucial interfacial structure to determine the electrochemical stability of Zn-ion battery (ZIB). In this work, we demonstrate that introducing β-cyclodextrins (CD) as anion-receptors into Zn(OTf)2 aqueous electrolyte could significantly optimize Zn anode SEI for achieving stable ZIB. Specifically, β-CD with macrocyclic holds appropriate cavity size charge distribution encase OTf- anions at metal surface form β-CD@OTf- dominated structure. Meanwhile, electrochemically triggered decomposition in situ convert organic-inorganic hybrid (ZnF2/ZnCO3/ZnS‒(C-O-C/*CF/*CF3)), which efficiently hinder dendrite growth maintain proper mechanical strength guarantee long-term stability. thus-derived | |Zn pouch cell (21 cm2 size) β-CD-containing exhibits a cumulative capacity 6450 mAh−2 cm−2 conditions 10 mAh high areal capacity. This work gives insights reaching ZIB via additive regulation. Here, authors report βcyclodextrins

Language: Английский

Citations

37