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Related Experiment Video

Updated: Mar 21, 2026

Protocol of Electrochemical Test and Characterization of Aprotic Li-O2 Battery

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Published on: July 12, 2016

A SnO2-Based Cathode Catalyst for Lithium-Air Batteries.

Delong Mei¹, Xianxia Yuan¹, Zhong Ma^1,2

¹Department of Chemical Engineering, Shanghai Jiao Tong University , Shanghai 200240, China.

ACS Applied Materials & Interfaces

|May 7, 2016

Summary

Tin dioxide (SnO2) and carbon-coated SnO2 (SnO2@C) were synthesized for lithium-air batteries. SnO2@C demonstrated superior cathode catalyst performance, enhancing battery efficiency through improved conductivity and surface area.

Keywords:

Li-air batteries carbon coated tin dioxide cathode catalyst microstructure tin dioxide

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Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Lithium-air batteries offer high energy density but require efficient cathode catalysts.
Developing stable and active catalysts is crucial for advancing Li-air battery technology.

Purpose of the Study:

To synthesize and evaluate tin dioxide (SnO2) and carbon-coated SnO2 (SnO2@C) as cathode catalysts for Li-air batteries.
To compare the catalytic performance of SnO2 and SnO2@C in oxygen reduction and evolution reactions.

Main Methods:

Hydrothermal synthesis followed by heat treatment for SnO2 and SnO2@C preparation.
Comparative electrochemical evaluation of synthesized catalysts in Li-air battery systems.

Main Results:

Both SnO2 and SnO2@C effectively catalyze oxygen reduction reactions (ORR) and oxygen evolution reactions (OER).
SnO2@C exhibited enhanced catalytic activity and superior Li-air battery performance compared to pure SnO2.
Improved conductivity, larger surface area, complex pore structure, and increased internal space of SnO2@C contribute to its better performance.

Conclusions:

SnO2@C is a promising cathode catalyst for Li-air batteries.
The carbon coating significantly enhances the electrochemical properties of SnO2 for Li-air battery applications.