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Related Concept Videos

Corrosion02:49

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The degradation of metals due to natural electrochemical processes is known as corrosion. Rust formation on iron, tarnishing of silver, and the blue-green patina that develops on copper are examples of corrosion. Corrosion involves the oxidation of metals. Sometimes it is protective, such as the oxidation of copper or aluminum, wherein a protective layer of metal oxide or its derivatives forms on the surface, protecting the underlying metal from further oxidation. In other cases, corrosion is...
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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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Group 17 elements, known as halogens, are nonmetals. At room temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine a solid. Astatine is a highly unstable radioactive element, so currently, most of its properties are unknown due to its short half-life. Tennessine is a synthetic element also predicted to be in this group. 
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The corrosion of steel reinforcement within concrete is a process influenced by the material's inherent properties and external factors. The high pH level of around 13, provided by calcium hydroxide present in concrete, initially protects the steel reinforcement by promoting the formation of a passive iron oxide layer on its surface.
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A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
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Halogenation is the addition of chlorine or bromine across the double bond in an alkene to yield a vicinal dihalide. The reaction occurs in the presence of inert and non-nucleophilic solvents, such as methylene chloride, chloroform, or carbon tetrachloride.
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Updated: Feb 12, 2026

Zinc-Sponge Battery Electrodes that Suppress Dendrites
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Multifunctional Molecular Engineering Enables Simultaneously Dendrite-Free and Corrosion-Resistant Zinc-Halogen

Chang Dong1, Hongbo Wu1, Tao Yang1

  • 1Zhejiang Key Laboratory of Energy Conversion Materials for Advanced Motor, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China.

Angewandte Chemie (International Ed. in English)
|February 11, 2026
PubMed
Summary
This summary is machine-generated.

Researchers developed a new electrolyte additive for aqueous zinc-ion batteries (AZIBs). This additive enhances battery performance and longevity by preventing corrosion and dendrite growth, enabling over 5000 hours of stable zinc anode cycling.

Keywords:
Zn metal anodeelectrolyte additivezinc–bromine batterieszinc–iodine batteries

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Aqueous zinc-ion batteries (AZIBs) performance relies heavily on electrolyte additives.
  • Understanding additive mechanisms is complex due to interfacial and ion-solvent interactions.
  • Current trial-and-error methods are insufficient for precise performance control.

Purpose of the Study:

  • To develop a quantitative model correlating depth of discharge (DOD) and cycle life for AZIBs.
  • To design and validate a multifunctional electrolyte additive for enhanced AZIB performance.
  • To establish a generalizable framework for designing effective additives for zinc-based batteries.

Main Methods:

  • Developed a quantitative model linking DOD and cycle life.
  • Strategically selected a multifunctional additive with amide and sulfonic acid groups.
  • Conducted experimental validation of the additive's mechanisms and performance.

Main Results:

  • The additive suppressed corrosion, hydrogen evolution, and dendrite growth.
  • Achieved over 5000 hours of cycle reversibility for the zinc anode.
  • Demonstrated remarkable stability for Zn||Cu batteries over 3800 cycles with 99.9% Coulombic efficiency.
  • Significantly improved cycling stability in Zn||I2 and Zn||Br2 batteries.

Conclusions:

  • A multifunctional additive design strategy based on quantitative modeling is effective.
  • The developed additive enables long-life and high-performance AZIBs.
  • This approach provides a pathway for practical, long-life zinc-halogen batteries.