Construct Robust Epitaxial Growth of (101) Textured Zinc Metal Anode for Long Life and High Capacity in Mild Aqueous Zinc‐Ion Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(5)

Published: Nov. 23, 2023

Abstract Aqueous zinc‐metal batteries are considered to have the potential for energy storage due their high safety and low cost. However, practical applications of zinc limited by dendrite growth side reactions. Epitaxial is an effective method stabilizing Zn anode, especially manipulating (002) plane deposited zinc. texture difficult achieve stable cycle at capacity its large lattice distortion uneven electric field distribution. Here, a novel anode with highly (101) (denoted as (101)‐Zn) constructed. Due unique directional guidance strong bonding effect, (101)‐Zn can dense vertical electroepitaxy in near‐neutral electrolytes. In addition, grain boundary area inhibits occurrence The resultant symmetric cells exhibit excellent stability over 5300 h (4 mA cm −2 2 mAh ) 330 (15 10 ). Meanwhile, life Zn//MnO full cell meaningfully improved 1000 cycles.

Language: Английский

---

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

ACS Nano, Journal Year: 2023, Volume and Issue: 17(15), P. 15113 - 15124

Published: July 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.

Language: Английский

---

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

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

---

A Bio‐Inspired Trehalose Additive for Reversible Zinc Anodes with Improved Stability and Kinetics

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(41)

Published: Aug. 14, 2023

The moderate reversibility of Zn anodes, as a long-standing challenge in aqueous zinc-ion batteries, promotes the exploration suitable electrolyte additives continuously. It is crucial to establish absolute predominance smooth deposition within multiple interfacial reactions for stable zinc including suppressing side parasitic and facilitating plating process. Trehalose catches our attention due reported mechanisms sustaining biological stabilization. In this work, inter-disciplinary application trehalose modification first time. pivotal roles suppressed hydrogen evolution accelerated have been investigated based on principles thermodynamics well reaction kinetics. electrodeposit changes from random accumulation flakes dense bulk with (002)-plane exposure unlocked crystal-face oriented addition. As result, highly reversible anode obtained, exhibiting high average CE 99.8 % Zn/Cu cell cycling over 1500 h under 9.0 depth discharge symmetric cell. designing mechanism analysis study could serve source inspiration exploring novel advanced anodes.

Language: Английский

---

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

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

---

Single [0001]-oriented zinc metal anode enables sustainable zinc batteries

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

Published: March 28, 2024

The optimization of crystalline orientation a Zn metal substrate to expose more Zn(0002) planes has been recognized as an effective strategy in pursuit highly reversible anodes. However, the lattice mismatch between and overgrowth crystals hampered epitaxial sustainability metal. Herein, we discover that presence crystal grains deviating from [0001] within anode leads failure mechanism. electrodeposited [0001]-uniaxial oriented anodes with single (0002) texture fundamentally eliminate achieve ultra-sustainable homoepitaxial growth. Using high-angle angular dark-filed scanning transmission electron microscopy, elucidate growth deposited following "~ABABAB~" arrangement on atomic-level perspective. Such consistently behavior retards dendrite formation enables improved cycling, even Zn||NH

Language: Английский

---

Synergistic Modulation of In‐Situ Hybrid Interface Construction and pH Buffering Enabled Ultra‐Stable Zinc Anode at High Current Density and Areal Capacity

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(45)

Published: Sept. 25, 2023

In aqueous electrolytes, the uncontrollable interfacial evolution caused by a series of factors such as pH variation and unregulated Zn2+ diffusion would usually result in rapid failure metallic Zn anode. Considering high correlation among various triggers that induce anode deterioration, synergistic modulation strategy based on electrolyte modification is developed. Benefitting from unique buffer mechanism additive its capability to situ construct zincophilic solid interface, this effect can comprehensively manage thermodynamic kinetic properties inhibiting parasitic side reactions, accelerating de-solvation hydrated , regulating behavior realize uniform deposition. Thus, modified achieve an impressive lifespan at ultra-high current density areal capacity, operating stably for 609 209 hours 20 mA cm-2 mAh 40 respectively. Based exceptional performance, loading Zn||NH4 V4 O10 batteries excellent cycle stability rate performance. Compared with those previously reported single strategies, concept expected provide new approach highly stable zinc-ion batteries.

Language: Английский

---

An Electrochemical Perspective of Aqueous Zinc Metal Anode

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 16(1)

Published: Nov. 17, 2023

Based on the attributes of nonflammability, environmental benignity, and cost-effectiveness aqueous electrolytes, as well favorable compatibility zinc metal with them, ions batteries (AZIBs) become leading energy storage candidate to meet requirements safety low cost. Yet, acting a double-edged sword, also play negative role by directly or indirectly causing various parasitic reactions at anode side. These include hydrogen evolution reaction, passivation, dendrites, resulting in poor Coulombic efficiency short lifespan AZIBs. A comprehensive review electrolytes chemistry, mechanism chemistry reactions, their relationship is lacking. Moreover, understanding strategies for suppressing from an electrochemical perspective not profound enough. In this review, firstly, anodes, AZIBs are deeply disclosed. Subsequently, enhancing inherent thermodynamic stability lowering dynamics Zn/electrolyte interfaces reviewed. Lastly, perspectives future development direction presented.

Language: Английский

---

Interfacial Regulation via Anionic Surfactant Electrolyte Additive Promotes Stable (002)‐Textured Zinc Anodes at High Depth of Discharge

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(38)

Published: Aug. 22, 2023

Abstract Aqueous zinc‐ion batteries have been identified as a viable option for grid energy storage. However, their practical application is limited by the poor performances at high use rate of zinc. A suitable strategy to improve cycling stability depth discharge (DOD) realizing (002)‐textured Zn plating suppress dendrite growth and side reactions. Herein, novel electrolyte additive sodium 3‐mercapto‐1‐propanesulfonate (MPS) introduced regulate zinc/electrolyte interfacial structure. The MPS anions can form an adsorption layer on anode surface, which induces deposition in (002) direction indicated first‐principles calculations. Additionally, facilitate reduction barrier associated with zinc deposition. This modified interface effectively inhibits reactions, resulting remarkable lifespan Zn||Zn symmetric cells, exceeding 800 h DOD 50%, over 4500 1.0 mA cm −2 /1.0 mAh . Moreover, capacity full cells V 2 O 5 ·H or polyaniline cathodes substantially improved. pouch‐type Zn||V cell reveals 42 good retention 86.6% after 250 cycles, highlighting significant potential applications.

Language: Английский

---

Lightweight Zn‐Philic 3D‐Cu Scaffold for Customizable Zinc Ion Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(24)

Published: Feb. 7, 2024

Abstract Porous metal current collectors (CCs) serve as key component for aqueous Zn‐ion batteries (AZIBs). Herein, a lightweight 3D‐Cu architecture with customizable geometries is developed to enable reversible Zn‐metal cycling. The prepared by 3D‐printing crosslink‐able polymer scaffold followed Cu‐metallization. printed optimized endow electric conductivity that on‐par commercial Cu foam, but can reduce ≈80% of the weight and consumption Cu. A Zn‐philic graphene (Gr) coating adopted promote uniform (002)‐preferred Zn growth onto surface, creating 3DP‐Cu@Gr induces conformal Zn‐deposition greatly suppressed H 2 ‐evolution reaction. 3DP‐Cu@Gr||Zn shows stable 700 cycles at 4 mA cm −2 mAh , coulombic efficiency >99.6%. Zn‐loaded 3D‐electrodes symmetrical cells 300 h cycling 10 delivering specific accumulated capacity 86.7 Ah g −1 . This represents an unprecedented combination cycle stability, high charge rate, electrode lightweight. all‐printed pantacle‐shape full pouch (3.6 mAh) exhibit 91.4% retention after 200 1 C. Possessing unusual design freedom, this strategy demonstrates pathway developing CCs high‐energy AZIBs.

Language: Английский

---