Machine Learning-Assisted High-Donor-Number Electrolyte Additive Screening toward Construction of Dendrite-Free Aqueous Zinc-Ion Batteries

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

The utilization of electrolyte additives has been regarded as an efficient strategy to construct dendrite-free aqueous zinc-ion batteries (AZIBs). However, the blurry screening criteria and time-consuming experimental tests inevitably restrict application prospect additive strategy. With rise artificial intelligence technology, machine learning (ML) provides avenue promote upgrading energy storage devices. Herein, we proposed intriguing ML-assisted method accelerate development efficiency on AZIBs. Concretely, selected Gutmann donor number (DN value) a screen parameter, which can reflect interaction between solvent molecules ions, integrated ML model that predict DN values organic via molecular fingerprints, thereby achieving additives. Then, combined with theoretical calculations, influence law three different thermodynamic stability Zn anode its corresponding optimization mechanisms were revealed; are in positive correlation electrochemical performance anode. Especially, isopropyl alcohol (IPA) high value (36) various Zn-based cells presented superior performance, including calendar life (1500 h), stable Coulombic (99% within 450 cycles), favorable cycling retention. This work pioneers techniques for predicting additives, offering compelling investigation

Язык: Английский

---

Inorganic-rich solid electrolyte interphase and oriented (002) crystal plane extension for reversible zinc metal anode

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159342 - 159342

Опубликована: Янв. 1, 2025

Язык: Английский

---

Synergistic Solvation and Nucleation Regulation for Enhanced Stability and Longevity in Aqueous Zinc-Ion Batteries with d-Pantothenic Acid Additive

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Янв. 3, 2025

Aqueous zinc-ion batteries (AZIBs) have gained increasing attention for grid energy storage systems. However, ensuring the long-term reversible operation of zinc anode remains a challenge due to dendrite growth and adverse side reactions during charge discharge cycles. This study investigates use d-pantothenic acid (D-PA) as an additive in 2 M ZnSO4 aqueous electrolyte enhance cycling stability AZIBs. Experimental results theoretical calculations demonstrate that D-PA reshapes solvation structure Zn2+ by partially replacing coordinated water molecules, transport. Furthermore, adsorbs on active sites anode, surface overpotential (|ηs|), reducing nucleation barrier, decreasing critical nucleus size (rcrit), thus uniform deposition. dual role modifying shell regulating effectively mitigates suppresses reactions, resulting excellent anode. Consequently, Zn||Zn symmetrical cells with maintain stable over 2000 h at 1.0 mA cm–2 cm–2, nearly 4000 4.0 cm–2. Additionally, Zn||Cu asymmetric exhibit 300 cycles 0.5 average Coulombic efficiency 99.29%. Moreover, Zn||V2O5 full containing performance 1000 current density 1 A g–1, maintaining high capacity retention. Specifically, initial cell is around 161.17 approximately 62.7% retention after

Язык: Английский

---

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

---

Binary Electrolyte Additive‐Reinforced Interfacial Molecule Adsorption Layer for Ultra‐Stable Zinc Metal Anodes

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

Aqueous zinc ion batteries (AZIBs) face challenges due to the limited interface stability of Zn anode, which includes uncontrolled hydrogen evolution reaction (HER) and excessive dendrite growth. In this study, a natural binary additive composed saponin anisaldehyde is introduced create stable interfacial adsorption layer for protection via reshaping electric double (EDL) structure. Saponin with rich hydroxyl carboxyl groups serves as "anchor points", promoting through intermolecular bonding. Meanwhile, anisaldehyde, unique aldehyde group, enhances HER suppression by preferentially facilitating electrocatalytic coupling H* in EDL, leading formation robust inorganic solid electrolyte interphase that prevents formation, structural during deposition process verified. As result, Zn||Zn symmetric cells present an ultra-long cycling lifespan 3 400 h at 1 mA cm-2 700 10 cm-2. Even current density 20 cm-2, demonstrate reversible operations 450 h. Furthermore, Zn-ion hybrid capacitors exhibit remarkable 100 000 cycles. This work presents simple synergetic strategy enhance anode/electrolyte stability, highlighting its potential anode high-performance AZIBs.

Язык: Английский

---

Manipulating oriented crystal growth of Zn via lattice-matched and zincophilic MXene nanoarrays towards dendrite-free Zn batteries

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 691, С. 137433 - 137433

Опубликована: Март 24, 2025

Язык: Английский

---

Polyetheramine Nematic Spatial Effects Reshape the Inner/Outer Helmholtz Planes for Energetic Zinc Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract Aqueous zinc (Zn) batteries hold significant promise as large‐scale energy storage solutions aimed at mitigating the intermittency of renewable energy. Nevertheless, Zn anode is plagued by a series adverse reactions, hindering development toward practical applications. Herein, concept polyetheramine nematic spatial effects that reshape inner and outer Helmholtz planes to stabilize introduced. Theoretical calculations characterizations confirm reshaped exhibit water/suflate‐repulsive homogeneous 2+ transport interface, enabling highly stable for energetic batteries. Consequently, anode‐free half‐cells under achieve cycling over 390 h an areal capacity 50 mAh cm −2 1500 10 . The constructed Zn‐V 2 O 5 Zn‐MnO cycle performance 1000 2000 cycles, respectively. Importantly, enlarged pouch cell with 300 demonstrates specific 176 g −1 after cycles. Moreover, displays successful integration photovoltaic panels along notable safety features. This superior electrical double‐layer regulation strategy offers valuable insights into

Язык: Английский

---

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

---

Branch Chain Variations Modulate Pyridine Derivative Adsorption for Long‐Life Zinc‐Ion Battery

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs), candidates for large‐scale energy storage, face limitations due to the poor reversibility of zinc anodes. It reports on pyridine derivatives with high donor characteristics, including 2‐chloro‐1‐methylpyridinium iodide (CMPI) and pyridine‐2‐acetaldoxime methyl (PAMI), as effective additives. At lower concentrations, these additives markedly curtail dendrites formation evolution hydrogen anode, thereby prolonging AZIBs life. Through a combination theory experiments, impact side‐chain groups kinetic process depositioni is elucidated. In contrast PAM + , CMPI demonstrates enhanced adsorption self‐assembles at anode‐electrolyte interface, forming barrier free water protective ZnI layer via I − ion integration. This dual‐layer strategy boosts plating/stripping by 100‐fold achieves coulombic efficiency 99.7% in zinc–copper half‐ batteries. The findings advance understanding electrolyte additive structures deposition, providing molecular framework screening aqueous metal‐ion

Язык: Английский

---

Polymeric Acid Additive Strategy for Long-Lifetime Aqueous Zinc-Ion Batteries

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104154 - 104154

Опубликована: Март 1, 2025

Язык: Английский

---