Metal–Organic Frameworks Functionalized Separators for Robust Aqueous Zinc-Ion Batteries

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 14(1)

Published: Nov. 9, 2022

Aqueous zinc-ion batteries (AZIBs) are one of the promising energy storage systems, which consist electrode materials, electrolyte, and separator. The first two have been significantly received ample development, while prominent role separators in manipulating stability has not attracted sufficient attention. In this work, a separator (UiO-66-GF) modified by Zr-based metal organic framework for robust AZIBs is proposed. UiO-66-GF effectively enhances transport ability charge carriers demonstrates preferential orientation (002) crystal plane, favorable corrosion resistance dendrite-free zinc deposition. Consequently, Zn|UiO-66-GF-2.2|Zn cells exhibit highly reversible plating/stripping behavior with long cycle life over 1650 h at 2.0 mA cm-2, Zn|UiO-66-GF-2.2|MnO2 show excellent long-term capacity retention 85% after 1000 cycles. reasonable design application multifunctional frameworks provide useful guidance constructing durable AZIBs.

Language: Английский

---

Developing Cathode Materials for Aqueous Zinc Ion Batteries: Challenges and Practical Prospects

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(5)

Published: April 18, 2023

Abstract Growth in intermittent renewable sources including solar and wind has sparked increasing interest electrical energy storage. Grid‐scale storage integrated with significant advantages regulation grid security. Aqueous zinc‐ion batteries (AZIBs) have emerged as a practically attractive option for because of environmentally benign aqueous‐based electrolytes, high theoretical capacity Zn anode, global reserves Zn. However, application AZIBs at the grid‐scale is restricted by drawbacks cathode material(s). Herein, comprehensive summary features mechanisms latest materials provided. The fundamental problems corresponding in‐depth causes critically reviewed. It also assess practical challenges, appraise their translation to commerce industry, systematically summarize discuss potential solutions reported recent works. established necessary design strategies anodes electrolytes that are matched commercializing AZIBs. Finally, it concluded perspective on prospects advancing development future Findings will be benefit range researchers manufacturers

Language: Английский

---

In Situ Construction of Anode–Molecule Interface via Lone‐Pair Electrons in Trace Organic Molecules Additives to Achieve Stable Zinc Metal Anodes

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(22)

Published: April 25, 2023

Abstract The practical application of aqueous zinc batteries (AZBs) is significantly limited by the poor reversibility anodes, including rampant dendrite growth and severe interfacial side‐reactions. Herein, trace hexamethylenetetramine (HMTA) additive with a lone‐pair‐electron containing heterocycle introduced for Zn metal anode protection. Specifically, added HMTA can change solvated structure strong interaction ions, preferentially absorb on surface to in situ establish an unique anode–molecule interface. Such interface not only shows affinity promote dynamic transmission deposition 2+ ions but also displays role suppressing parasitic reactions. Consequently, electrolyte achieves high Coulombic efficiency 99.75%, delivers remarkable lifespan over 4000 h at 5 mA cm −2 1 mAh Zn//Zn symmetric cell. Even under deep plating/stripping condition (5 ), it still run almost 600 h. Additionally, Zn//V 2 O full cell retains capacity retention 61.7% after cycles A g −1 . innovative strategy expected be immediate benefit design low‐cost AZBs ultra‐long lifespan.

Language: Английский

---

Nonepitaxial Electrodeposition of (002)‐Textured Zn Anode on Textureless Substrates for Dendrite‐Free and Hydrogen Evolution‐Suppressed Zn Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(21)

Published: March 2, 2023

Nontoxic and safe aqueous Zn batteries are largely restricted by the detrimental dendrite growth hydrogen evolution of metal anode. The (002)-textured electrodeposition, demonstrated as an effective approach for solving these issues, is nevertheless achieved mainly epitaxial or hetero-epitaxial deposition on pre-textured substrates. Herein, electrodeposition compact textureless substrates (commercial Zn, Cu, Ti foils) at a medium-high galvanostatic current density reported. According to systematic investigations nucleation behaviors, this ascribed two reasons: i) promoted nonepitaxial fine horizontal (002) nuclei increased overpotential ii) competitive advantages (002)-orientated nuclei. resulting freestanding film exhibits significantly suppressed prolonged plating-stripping cycling life, achieving over 2100 mAh cm-2 cumulative capacity under 10 mA high depth discharge (DOD) 45.5%. Therefore, study provides both fundamental practical insights into long-life batteries.

Language: Английский

---

How About Vanadium‐Based Compounds as Cathode Materials for Aqueous Zinc Ion Batteries?

Advanced Science, Journal Year: 2023, Volume and Issue: 10(12)

Published: Jan. 22, 2023

Aqueous zinc-ion batteries (AZIBs) stand out among many monovalent/multivalent metal-ion as promising new energy storage devices because of their good safety, low cost, and environmental friendliness. Nevertheless, there are still great challenges to exploring new-type cathode materials that suitable for Zn

Language: Английский

---

Regulating the Inner Helmholtz Plane with a High Donor Additive for Efficient Anode Reversibility in Aqueous Zn‐Ion Batteries

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(21)

Published: March 24, 2023

The performance of aqueous Zn ion batteries (AZIBs) is highly dependent on inner Helmholtz plane (IHP) chemistry. Notorious parasitic reactions containing hydrogen evolution (HER) and dendrites both originate from abundant free H2 O random deposition inside active IHP. Here, we report a universal high donor number (DN) additive pyridine (Py) with only 1 vol. % addition (Py-to-H2 volume ratio), for regulating molecule distribution Density functional theory (DFT) calculations molecular dynamics (MD) simulation verify that incorporated Py could tailor Zn2+ solvation sheath exclude molecules IHP effectively, which in favor preventing decomposition. Consequently, even at extreme conditions such as depth discharge (DOD) 80 %, the symmetric cell based can sustain approximately 500 h long-term stability. This efficient strategy DN additives furnishes promising direction designing novel electrolytes promoting practical application AZIBs, despite inevitably introducing trace organic additives.

Language: Английский

---

Recent Advances on Challenges and Strategies of Manganese Dioxide Cathodes for Aqueous Zinc‐Ion Batteries

Energy & environment materials, Journal Year: 2022, Volume and Issue: 6(6)

Published: Dec. 24, 2022

Aqueous zinc‐ion batteries (AZIBs) are regarded as promising electrochemical energy storage devices owing to its low cost, intrinsic safety, abundant zinc reserves, and ideal specific capacity. Compared with other cathode materials, manganese dioxide high voltage, environmental protection, theoretical capacity receives considerable attention. However, the problems of structural instability, dissolution, poor electrical conductivity make exploration high‐performance still a great challenge impede practical applications. Besides, mechanisms involved complex somewhat controversial. To address these issues, tremendous efforts, such surface engineering, heteroatoms doping, defect electrolyte modification, some advanced characterization technologies, have been devoted improving performance illustrating mechanism. In this review, we particularly focus on classification based crystal structures, ions mechanisms, existing challenges, corresponding optimization strategies well structure–performance relationship. final section, application perspectives oxide materials in AZIBs prospected.

Language: Английский

---

Enabling Highly Reversible Zn Anode by Multifunctional Synergistic Effects of Hybrid Solute Additives

ACS Energy Letters, Journal Year: 2023, Volume and Issue: 8(2), P. 1192 - 1200

Published: Jan. 27, 2023

Aqueous zinc ion batteries are promising secondary for next-generation electrochemical energy storage. In this work, we report a hybrid electrolyte system with 3 M Zn(OTf)2 as salt and 1 urea + 0.3 LiOAc solute additives highly reversible aqueous batteries. system, partial coordinated water molecules of Zn2+ replaced, the original hydrogen bond network bulk also suffers from interruption. Moreover, introduction lithium acetate solves aggravated self-corrosion caused by on one hand inhibits growth dendrites through electrostatic shielding effect other. Benefiting multifunctional synergistic effect, dendrite-free Zn plating/stripping 600 h at 4.8 mA cm–2 (20% depth discharge) ∼99.7% Coulombic efficiency high cumulative plating capacity 1600 mAh is achieved.

Language: Английский

---

Aqueous Zinc‐Iodine Batteries: From Electrochemistry to Energy Storage Mechanism

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(41)

Published: Sept. 1, 2023

Abstract As one of the most appealing energy storage technologies, aqueous zinc‐iodine batteries still suffer severe problems such as low density, slow iodine conversion kinetics, and polyiodide shuttle. This review summarizes recent development Zn─I 2 with a focus on electrochemistry underlying working mechanism. Starting from fundamentals batteries, zinc anode, well scientific existing in are introduced. The concrete strategies dealing cathode, electrolyte, separator challenges confronting elaborated well. To deepen understanding important findings mechanism different summarized detail. Finally, some guidelines directions for also provided. is expected to battery promote their practical applications future.

Language: Английский

---

Alloying Strategy for High-Performance Zinc Metal Anodes

ACS Energy Letters, Journal Year: 2022, Volume and Issue: 8(1), P. 457 - 476

Published: Dec. 9, 2022

Owing to the advantages of low cost, high energy density, and environment friendly, aqueous zinc ion batteries (AZIBs) are considered as promising storage devices. Inevitable dendrites, corrosion, passivation, hydrogen evolution reactions anodes have seriously hampered practical application AZIBs. To address above-mentioned issues, anode alloying is proposed an emerging modification strategy. Therefore, it essential systematically summarize obtained research results on strategies analyze new perspectives. Based presented studies anode, different improvement mechanisms described, such artificial interface alloy protective layer, electrostatic shielding effect, heterogeneous seeds zincophilic sites, vertical plane matching strategy, etc. According synthesis methods action, recent advances been summarized. Finally, potential development prospects for further upgrading presented.

Language: Английский

---