Recent Progress on Zn Anodes for Advanced Aqueous Zinc‐Ion Batteries

Advanced Energy Materials, Год журнала: 2023, Номер 13(28)

Опубликована: Июнь 17, 2023

Abstract Aqueous Zn‐ion batteries (AZIBs) have attracted much attention due to their excellent safety, cost‐effectiveness, and eco‐friendliness thereby being considered as one of the most promising candidates for large‐scale energy storage. Zn metal anodes with a high gravimetric/volumetric capacity are indispensable advanced AZIBs. However, pristine encounter severe challenges in achieving adequate cycling stability, including dendrite growth, hydrogen evolution reaction, self‐corrosion, by‐product formation. Because all these reactions closely related electrolyte/Zn interface, subtle interface engineering is important. Many strategies targeted been developed. In this review, timely update on perspectives summarized, especially focusing controllable synthesis Zn, surface engineering, electrolyte formulation, separator design. Furthermore, corresponding internal principles clarified, which helpful help seek new strategies. Finally, future development practical AZIBs discussed, conducting situ testing, unification battery models, some boundary issues, etc. This review expected guide provi beacon light direction aqueous zinc ion batteries.

Язык: Английский

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A biocompatible electrolyte enables highly reversible Zn anode for zinc ion battery

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Окт. 16, 2023

Progress towards the integration of technology into living organisms requires power devices that are biocompatible and mechanically flexible. Aqueous zinc ion batteries use hydrogel biomaterials as electrolytes have emerged a potential solution operates within biological constraints; however, most these feature inferior electrochemical properties. Here, we propose electrolyte by utilising hyaluronic acid, which contains ample hydrophilic functional groups. The gel-based offers excellent anti-corrosion ability for anodes regulates nucleation/growth. Also, gel provides high battery performance, including 99.71% Coulombic efficiency, over 5500 hours long-term stability, improved cycle life 250 under utilization rate 80%, biocompatibility. Importantly, Zn//LiMn2O4 pouch cell exhibits 82% capacity retention after 1000 cycles at 3 C. This work presents promising chemistry controls behaviour, offering great in energy-related applications beyond.

Язык: Английский

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Polycation‐Regulated Electrolyte and Interfacial Electric Fields for Stable Zinc Metal Batteries

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(27)

Опубликована: Май 8, 2023

Zn metal as one of promising anode materials for aqueous batteries but suffers from disreputable dendrite growth, grievous hydrogen evolution and corrosion. Here, a polycation additive, polydiallyl dimethylammonium chloride (PDD), is introduced to achieve long-term highly reversible plating/stripping. Specifically, the PDD can simultaneously regulate electric fields electrolyte Zn/electrolyte interface improve Zn2+ migration behaviors guide dominant (002) deposition, which veritably detected by Zeta potential, Kelvin probe force microscopy scanning electrochemical microscopy. Moreover, also creates positive charge-rich protective outer layer N-rich hybrid inner layer, accelerates desolvation during plating process blocks direct contact between water molecules anode. Thereby, reversibility stability anodes are substantially improved, certified higher average coulombic efficiency 99.7 % Zn||Cu cells 22 times longer life Zn||Zn compared with that PDD-free electrolyte.

Язык: Английский

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Manipulating Zn 002 deposition plane with zirconium ion crosslinked hydrogel electrolyte toward dendrite free Zn metal anodes

Energy & Environmental Science, Год журнала: 2023, Номер 16(10), С. 4561 - 4571

Опубликована: Янв. 1, 2023

A Zr 4+ crosslinked hydrogel electrolyte is demonstrated on side reaction resistance for high-performance aqueous Zn-based devices.

Язык: Английский

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In‐Situ Integration of a Hydrophobic and Fast‐Zn²⁺‐Conductive Inorganic Interphase to Stabilize Zn Metal Anodes

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(27)

Опубликована: Май 2, 2023

The irreversible issues of Zn anode stemming from dendrite growth and water-induced erosion have severely hindered the commercialization rechargeable aqueous batteries. Herein, a hydrophobic fast-Zn2+ -conductive zinc hexacyanoferrate (HB-ZnHCF) interphase layer is in situ integrated on by rapid room-temperature wet-chemistry method to address these dilemmas. Different currently proposed hydrophilic inorganic cases, compact HB-ZnHCF effectively prevents access water molecules surface, thus avoiding H2 evolution corrosion. Moreover, with large internal ion channels, strong zincophilicity, high Zn2+ transference number (0.86) permits fast transport enables smooth deposition. Remarkably, resultant HB-ZnHCF@Zn electrode delivers unprecedented reversibility 99.88 % Coulombic efficiency over 3000 cycles, realizes long-term cycling 5800 h (>8 months, 1 mA cm-2 ) 1000 (10 ), assures stable operation full battery both coin- pouch-type configurations.

Язык: Английский

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A eutectic electrolyte for an ultralong-lived Zn//V₂O₅cell: anin situgenerated gradient solid-electrolyte interphase

Energy & Environmental Science, Год журнала: 2023, Номер 16(8), С. 3587 - 3599

Опубликована: Янв. 1, 2023

This study achieved dendrite-free Zn metal anodes for Zn-ion batteries via an in situ generated gradient organic/inorganic hybrid solid–electrolyte interphase enabled by a eutectic electrolyte.

Язык: Английский

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Synergistic Cooperation of Zn(002) Texture and Amorphous Zinc Phosphate for Dendrite-Free Zn Anodes

ACS Nano, Год журнала: 2023, Номер 17(15), С. 15113 - 15124

Опубликована: Июль 27, 2023

Zn anodes of aqueous metal batteries face challenges from dendrite growth and side reactions. Building Zn(002) texture mitigates the issues but does not eradicate them. still faces severe corrosive electrolytes growth, especially after hundreds cycles. Therefore, it is necessary to have a passivation layer covering Zn(002). Here, surface coating are achieved on foils by an one-step annealing process, as demonstrated ZnS, ZnSe, ZnF2, Zn3(PO4)2 (ZPO), etc. Using ZPO model, coupling between illustrated in terms dendrite-suppressing ability diffusion energy barrier Zn2+. The modified (Zn(002)@ZPO) exhibit excellent electrochemical performance, far superior or alone. In full cells, performance greatly improved even under harsh conditions, i.e., high areal capacity limited resource. This work achieves crystal engineering simultaneously discloses in-depth insights about synergy orientation layers.

Язык: Английский

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Dendrite-Free and Highly Stable Zn Metal Anode with BaTiO₃/P(VDF-TrFE) Coating

ACS Energy Letters, Год журнала: 2023, Номер 8(7), С. 2886 - 2896

Опубликована: Июнь 2, 2023

Aqueous rechargeable Zn metal batteries have garnered increasing attention due to their high theoretical capacity, safety, and low cost. However, commercialization has been impeded by the rapid cycling deterioration caused side reactions dendrite growth on anodes. The present work explores a dielectric organic–inorganic film with hydrophobic surface circumvent these problems suppress zinc anode. Dielectric BaTiO3/P(VDF-TrFE) (BTO/PVT) coating demonstrated promote uniform deposition inhibit growth. also regulates Zn-ion desolvation process at interfaces is crucial in preventing water from harming anode surface, leading dendrite-free little formation of byproducts. resulting BTO/PVT@Zn long lifespan 3000 h an average Coulombic efficiency 99.6% 1 mA cm–2. In addition, BTO/PVT@Zn||NH4V4O10 full cell shows good rate capability lifespan.

Язык: Английский

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

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(51)

Опубликована: Ноя. 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.

Язык: Английский

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Synchronous Dual Electrolyte Additive Sustains Zn Metal Anode with 5600 h Lifespan

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(10)

Опубликована: Янв. 10, 2023

Despite conspicuous merits of Zn metal anodes, the commercialization is still handicapped by rampant dendrite formation and notorious side reaction. Manipulating nucleation mode deposition orientation a key to rendering stabilized anodes. Here, dual electrolyte additive strategy put forward via direct cooperation xylitol (XY) graphene oxide (GO) species into typical zinc sulfate electrolyte. As verified molecular dynamics simulations, incorporated XY molecules could regulate solvation structure Zn2+ , thus inhibiting hydrogen evolution reactions. The self-assembled GO layer in favor facilitating desolvation process accelerate reaction kinetics. Progressive orientational can be realized under synergistic modulation, enabling dense uniform deposition. Consequently, symmetric cell based on additives harvests highly reversible cycling 5600 h at 1.0 mA cm-2 /1.0 mAh .

Язык: Английский

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