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Updated: Feb 7, 2026

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries

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An Extremely Simple Method for Protecting Lithium Anodes in Li-O₂ Batteries.

Xin Zhang¹, Qinming Zhang¹, Xin-Gai Wang¹

¹School of Materials Science and Engineering, Institute of New Energy Material Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300350, China.

Angewandte Chemie (International Ed. in English)

|August 7, 2018

Summary

Researchers developed a simple method to protect lithium anodes in rechargeable lithium-oxygen (Li-O₂) batteries. A protective film formed from 1,4-dioxacyclohexane enhances cycling stability and reduces anode degradation for better battery performance.

Keywords:

1,4-dioxacyclohexane lithium metal anodes lithium-oxygen batteries protective films

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Area of Science:

Electrochemistry
Materials Science
Energy Storage

Background:

Rechargeable lithium-oxygen (Li-O₂) batteries offer high energy density but face performance limitations.
The lithium anode is critical for improving the cycle life of Li-O₂ batteries.
Protecting the lithium anode is essential for stable battery operation.

Purpose of the Study:

To introduce a simple method for creating a protective film on lithium anodes.
To enhance the cycling stability of Li-O₂ batteries.
To mitigate degradation issues associated with lithium anodes.

Main Methods:

Chemical reaction between lithium metal and 1,4-dioxacyclohexane to form a protective film.
Characterization of the protective film composition (ethylene oxide monomers).
Evaluation of the film's effect on Li-O₂ battery cycling stability.

Main Results:

A protective film composed of ethylene oxide monomers was successfully formed on the lithium anode surface.
The protective film significantly enhanced the cycling stability of Li-O₂ batteries.
The film effectively reduced morphological changes and suppressed parasitic reactions of the lithium anode.

Conclusions:

The developed method provides a novel and simple strategy for protecting lithium anodes in Li-O₂ batteries.
The protective film contributes to improved battery performance and longevity.
This approach offers a promising pathway for advancing Li-O₂ battery technology.