Functional Ultrathin Separators Proactively Stabilizing Zinc Anodes for Zinc‐Based Energy Storage

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(18)

Published: Feb. 14, 2023

Ultrathin separators are indispensable to high-energy-density zinc-ion batteries (ZIBs), but their easy failure caused by zinc dendrites poses a great challenge. Herein, 23 µm-thick functional ultrathin (FUSs), realizing superb electrochemical stability of anodes and outstanding long-term durability separators, reported. In the FUSs, an mechanically strong nanoporous membrane substrate benefits fast flux-homogenized Zn2+ transport, while metal-organic framework (MOF)-derived C/Cu nanocomposite decoration layer provides rich low-barrier nucleation sites, thereby synergistically stabilizing inhibit dendrite-caused separator failure. Investigation affinity MOF-derived nanocomposites unravels high zincophilicity heteroatom-containing interfaces. Zinc coupled with FUSs present superior stability, whose operation lifetime exceeds 2000 h at 1 mA cm-2 600 10 , 40-50 times longer than that using glass-fiber separators. The reliability in ZIBs hybrid supercapacitors is also validated. This work proposes new strategy stabilize theoretical guidance developing for zinc-based energy storage.

Language: Английский

---

Recent advances in interfacial modification of zinc anode for aqueous rechargeable zinc ion batteries

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 83, P. 287 - 303

Published: April 20, 2023

Language: Английский

---

Optimization strategies toward advanced aqueous zinc-ion batteries: From facing key issues to viable solutions

Nano Energy, Journal Year: 2023, Volume and Issue: 116, P. 108858 - 108858

Published: Sept. 2, 2023

Language: Английский

---

Design Strategies for Aqueous Zinc Metal Batteries with High Zinc Utilization: From Metal Anodes to Anode-Free Structures

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

---

Lotus Effect Inspired Hydrophobic Strategy for Stable Zn Metal Anodes

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(11)

Published: Oct. 13, 2023

Abstract Zn‐ion batteries (ZIBs) have long suffered from the unstable Zn metal anode, which faces numerous challenges concerning dendrite growth, corrosion, and hydrogen evolution reaction. The absence of H 2 O adsorption control techniques has become a bottleneck for further development ZIBs. Using stearic acid (SA)‐modified Cu@Zn (SA‐Cu@Zn) anode as an example, this work illustrates how lotus effect controls energy on anode. In situ integrated Cu nanorods arrays hydrophobic long‐chain alkyl groups are constructed, provide zincophilic ordered channels property. Consequently, SA‐Cu@Zn exhibits long‐term cycling stability over 2000 h high average Coulombic efficiency (CE) 99.83% at 1 mA cm −2 mAh , improves electrochemical performance Zn||V 5 full cell. Density functional theory (DFT) calculations combined with water contact angle (CA) measurements demonstrate that larger CA weaker than Zn. Moreover, presence ensures selective well explaining excellent reversibility is achieved. This demonstrates effectiveness controllable deposition mechanism, offering universal strategy achieving stable ZIB anodes.

Language: Английский

---

Understanding of the charge storage mechanism of MnO2-based aqueous zinc-ion batteries: Reaction processes and regulation strategies

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 82, P. 423 - 463

Published: April 20, 2023

Language: Английский

---

Interface Engineering by Hydrophilic and Zincophilic Aluminum Hydroxide Fluoride for Anode‐Free Zinc Metal Batteries at Low Temperature

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(20)

Published: April 7, 2023

Abstract Anode‐free batteriesgreatly promote overall energy density, but they require an extremely high Coulombic efficiency (CE, >99.7%) to function normally. It becomes very challenging in aqueous batteries, because of water‐related parasitic reactions and dendrite growth on Zn anodes. Herein, aluminum hydroxide fluoride coated Cu foils (Cu@AOF) is used realize the anode‐free batteries. AOF exhibits a adsorption affinity H 2 O low diffusion barrier for adatoms, promoting desolvation process surface migration. Meanwhile, strong interaction between 2+ enables it regulate flux benefit lateral growth. Then, full cells Cu@AOF||Zn 0.5 VO exhibit record‐high cycle life 2000 cycles at 1 A g −1 with ultra‐high average CE 99.95%. More impressively, cell shows long 400 99.94% −20 °C. This work provides sheds light rational engineering electrode interfaces obtain excellent performance temperatures.

Language: Английский

---

Sn-doped BiOCl nanosheet with synergistic H+/Zn2+ co-insertion for “rocking chair” zinc-ion battery

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 81, P. 623 - 632

Published: March 18, 2023

Language: Английский

---

Recent progress of dendrite‐free stable zinc anodes for advanced zinc‐based rechargeable batteries: Fundamentals, challenges, and perspectives

SusMat, Journal Year: 2023, Volume and Issue: 3(2), P. 180 - 206

Published: March 2, 2023

Abstract Zinc‐based batteries are a very promising class of next‐generation electrochemical energy storage systems, with high safety, eco‐friendliness, abundant resources, and the absence rigorous manufacturing conditions. However, practical applications zinc‐based rechargeable impeded by low Coulombic efficiency, inferior cyclability, poor rate capability, due to instability zinc anode. Herein, effective strategies for dendrite‐free anode symmetrically reviewed, especially highlighting specific mechanisms, delicate design electrode current collectors, controlled electrode|electrolyte interface, ameliorative electrolytes, advanced separators design. First, particular mechanisms dendrites formation associated fundamentals stable Zn metal anodes presented elaborately. Then, recent key prevention hydrogen evolution reaction suppression categorized, discussed, analyzed in detail view electrodes, separators. Finally, challenging perspectives major directions briefly discussed further industrialization commercialization batteries.

Language: Английский

---

Progress in research on metal-based materials in stabilized Zn anodes

Rare Metals, Journal Year: 2023, Volume and Issue: 43(1), P. 20 - 40

Published: Nov. 13, 2023

Language: Английский

---