High-Performance Bipolar Small-Molecule Organic Cathode for Wide-Temperature-Range Aqueous Zinc-Ion Batteries DOI
Hua Kang,

Quanwei Ma,

Yangyang Liu

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Organic small-molecules with redox activity are promising cathode candidates for aqueous zinc-ion batteries (AZIBs) due to their low cost, high safety and theoretical capacity. However, severe dissolution leads unsatisfactory electrochemical performance. Here, a dihydro-octaaza-pentacene (DOP) compound is synthesized as AZIBs by extending its N heterocyclic molecular structure. The extended structure provides dual active sites of n-type (C═N) p-type (-NH-) reactions while reducing through enhanced π-conjugation. Hence, the Zn//DOP battery demonstrates improved performance, e.g., an capacity 360 mAh g-1 at 0.05 A g-1. Even under temperature conditions - 50 °C, still maintain capacities 172 312 g-1, respectively. In/ex-situ spectroscopy provide thorough understanding storage mechanisms cations anions (Zn2+/H+ ClO4-) multielectron transfer process occurring electroactive sites. This strategy offers approach designing high-performance zinc-organic sustainable energy storage.

Language: Английский

A new polymer with rich carbonyl delocalized π-conjugated structure for high-performance aqueous zinc ion batteries DOI

Xinyu Gao,

Yongwen Wang,

Yigang Xiao

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 685, P. 604 - 614

Published: Jan. 21, 2025

Language: Английский

Citations

1
Progress of Organic Carbonyl Compounds as Electrode Materials for Sodium−ion Batteries DOI
Fei Wu,

Liangju Zhao,

Lei Wang

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110534 - 110534

Published: Dec. 1, 2024

Language: Английский

Citations

4
Electrodissolution-driven enhancement in Zn electrode reversibility DOI

Zhongxi Zhao,

Jianwen Yu,

Jing‐Fang Huang

et al.

Science Bulletin, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0
Buchwald-Hartwig cross coupling constructs a p-type polymer with extended π-conjugated structure for high-performance Li-based dual-ion full batteries DOI
Yang Gu, Wenjun Li, Yu Zheng

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161040 - 161040

Published: Feb. 1, 2025

Language: Английский

Citations

0
Regulating Interface Engineering by Helmholtz Plane Reconstructed Achieves Highly Reversible Zinc Metal Anodes DOI Open Access
Zengguang Li, Zhongju Wang,

Wenxuan Sun

et al.

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

Published: Feb. 28, 2025

The rampant dendrite growth and notorious parasitic reactions significantly compromise the stability of zinc anodes in aqueous metal batteries, presenting substantial for their practical applications. Herein, this work proposes a synergistic strategy that reconstructs Helmholtz plane to precisely regulate interface chemistry between anode electrolyte. Experimental investigations theoretical calculations demonstrate even small amount pyridine oxide (PNO) additive effectively alters coordination environment reorganizes solvation sheath Outer Plane (OHP). Simultaneously, PNO molecules preferentially adsorbed on surface, displacing active water from Inner (IHP). Through regulation both OHP IHP, ions achieve compact dense deposition along Zn (002) crystal plane, while catalyzed by are suppressed. Consequently, symmetric cell incorporating demonstrates stable cycling performance, maintaining more than 2300 h at 1 mA cm-2 sustaining over 400 high depth discharge 85%. Furthermore, Zn||AQ retains 80% its capacity after 3000 cycles exhibits outstanding under material mass loading (22 mg cm-2) using modified

Language: Английский

Citations

0
Boosting High Energy Density for Aqueous Ni–Zn Batteries by Synergetic Engineering of Bimetal Doping and Se Vacancy in Ni3Se2 DOI

X. R. Fu,

Shuangxing Cui,

Minghui Xu

et al.

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Language: Английский

Citations

0
High-Performance Bipolar Small-Molecule Organic Cathode for Wide-Temperature-Range Aqueous Zinc-Ion Batteries DOI
Hua Kang,

Quanwei Ma,

Yangyang Liu

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Organic small-molecules with redox activity are promising cathode candidates for aqueous zinc-ion batteries (AZIBs) due to their low cost, high safety and theoretical capacity. However, severe dissolution leads unsatisfactory electrochemical performance. Here, a dihydro-octaaza-pentacene (DOP) compound is synthesized as AZIBs by extending its N heterocyclic molecular structure. The extended structure provides dual active sites of n-type (C═N) p-type (-NH-) reactions while reducing through enhanced π-conjugation. Hence, the Zn//DOP battery demonstrates improved performance, e.g., an capacity 360 mAh g-1 at 0.05 A g-1. Even under temperature conditions - 50 °C, still maintain capacities 172 312 g-1, respectively. In/ex-situ spectroscopy provide thorough understanding storage mechanisms cations anions (Zn2+/H+ ClO4-) multielectron transfer process occurring electroactive sites. This strategy offers approach designing high-performance zinc-organic sustainable energy storage.

Language: Английский

Citations

0