Highly reversible Zn anode by ion flow regulation and micro-corrosion zone division DOI Creative Commons
Chunyi Zhi,

Zhuoxi Wu,

Qianqian Wang

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Abstract Aqueous zinc-ion batteries (AZIBs) have been receiving continuous attention as candidates for the next generation of safe batteries, but poor reversibility Zn anode limits their further development. In recent years, researchers obsessed with modifying surface and adjusting solvation structure Zn2+ to address these challenges. Here, we present a novel strategy improve by simultaneously regulating zinc ion flow dividing micro-corrosion zones on anode, thereby manipulating deposition behavior relieving corrosion anode. This approach exploits keto-enol tautomerism α-acetyl-γ-butyrolactone (ABL) develop specifically designed additive: coordinated complex (ZnABL). With this innovative additive, anodes showed excellent reversibility: Zn||Zn symmetric cell achieved long cycle life 7780 h (about 11 months) Coulombic Efficiency averagely reached high value 99.87 %. Furthermore, Zn||Zn0.25V2O5·H2O near-ampere-hour pouch cell, featuring areal capacity 7.9 mAh cm-2, an energy density 106.17 Wh L-1 sustained more than 350 cycles. The success ZnABL in modulating compartmentalizing zone provides option improvement anodes.

Language: Английский

Surface Topography Optimization Engineering: Stabilizing Zinc Metal Anode/Aqueous Electrolyte Interfacial Chemistry DOI Open Access

Zihai Cheng,

Jimin Fu, Peng Kang

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Abstract Unstable metallic Zn anode (MZA)/electrolyte interfacial chemistry has long blocked the practical implementation of aqueous metal batteries (ZMBs). Herein, this study presents an innovative surface topology optimization engineering via efficient laser‐texturing technique to achieve front‐end design MZA for enhanced interface stability. Specifically, laser‐textured features in situ formed ZnO coating with a high‐density, ordered micro‐pits array architecture (LT‐Zn@ZnO). Systematic experimental analyses and theoretical calculations reveal that LT‐Zn@ZnO ensures more uniform electric field distribution stronger corrosion resistance than pristine foil. These enhancements effectively suppress dendrite proliferation hydrogen evolution on surface, achieving stable LT‐Zn@ZnO/electrolyte chemistry. Therefore, acquires exceptional electrochemical reversibility, sustaining over 1840 h at 10 mA cm − 2 /1 mAh . This results assembled large‐sized (24 ) LT‐Zn@ZnO||Ti@MnO₂ pouch cell higher initial capacity 158.6 significantly improved rechargeability, retaining 105 after 400 cycles, compared employing untreated foil, which 144.7 failed fewer 200 cycles. The presented topography strategy offers solution enhancement MZA, leading reversibility toward ZMBs satisfactory rechargeability.

Language: Английский

Citations

0
Zincophilic, Green, Non-Toxic Additives Modulate Lean-Water Inner Helmholtz Layer for Enhanced Stability of Zinc Anodes DOI
Funian Mo, Jing Li, Li Li

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Reconfiguring solvation network and interfacial engineering of Zn metal anode with biomass carbon quantum dot DOI
Yang Yu, Lin Li,

Zhen-Yu Hu

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137251 - 137251

Published: March 1, 2025

Language: Английский

Citations

0
Revisiting Membrane‐Free Zn–Mn Redox Flow Batteries: An Innovative Universal Aspartic Acid Additive for Superior Stability DOI Creative Commons

Hyeokjun Jang,

Mu Geun Son,

Duho Han

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract An all‐aqueous membrane‐free Zn–Mn redox flow battery utilizing deposition chemistry can be an excellent alternative to conventional aqueous batteries for reducing costs and improving stability. In the neutral/mildly acidic electrolyte environment of batteries, anode still suffers from issues such as zinc dendrite growth corrosion, while cathode struggles with poor reversibility. The same arise in that use a combined electrolyte, where both anolyte catholyte are combined. Therefore, it is possible simultaneously address by using single additive electrolyte. Here, aspartic acid introduced universal battery. bonded Zn surface, 2+ ions, Mn resolving almost all side reactions. Impressively, demonstrated remarkable cycling stability 300 cycles at areal capacity 10 mAh cm −2 . A new efficient strategy proposed controlling overall reactions simple addition integrated this report.

Language: Английский

Citations

0
Highly reversible Zn anode by ion flow regulation and micro-corrosion zone division DOI Creative Commons
Chunyi Zhi,

Zhuoxi Wu,

Qianqian Wang

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Abstract Aqueous zinc-ion batteries (AZIBs) have been receiving continuous attention as candidates for the next generation of safe batteries, but poor reversibility Zn anode limits their further development. In recent years, researchers obsessed with modifying surface and adjusting solvation structure Zn2+ to address these challenges. Here, we present a novel strategy improve by simultaneously regulating zinc ion flow dividing micro-corrosion zones on anode, thereby manipulating deposition behavior relieving corrosion anode. This approach exploits keto-enol tautomerism α-acetyl-γ-butyrolactone (ABL) develop specifically designed additive: coordinated complex (ZnABL). With this innovative additive, anodes showed excellent reversibility: Zn||Zn symmetric cell achieved long cycle life 7780 h (about 11 months) Coulombic Efficiency averagely reached high value 99.87 %. Furthermore, Zn||Zn0.25V2O5·H2O near-ampere-hour pouch cell, featuring areal capacity 7.9 mAh cm-2, an energy density 106.17 Wh L-1 sustained more than 350 cycles. The success ZnABL in modulating compartmentalizing zone provides option improvement anodes.

Language: Английский

Citations

0