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Batteries and Fuel Cells

Batteries and Fuel Cells

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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Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Published on: October 20, 2023

Toward next-generation fuel cell materials.

M A K Yousaf Shah¹, Peter D Lund^1,2, Bin Zhu¹

¹Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology/ Energy Storage Joint Research Center, Southeast University, Nanjing, Jiangsu, China.

|June 5, 2023

Summary

This summary is machine-generated.

Researchers developed a novel fuel cell using advanced ceramic nanocomposites. This design enhances ionic conductivity for potentially cheaper and more accessible clean energy solutions.

Keywords:

Electrochemical materials science Energy engineering Materials property

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Area of Science:

Materials Science
Electrochemistry
Energy Conversion

Background:

Fuel cells convert chemical energy to electricity via anode/electrolyte/cathode layers.
Electrolyte membranes define fuel cell types, with solid oxide fuel cells (SOFC/PCFC) and polymer electrolyte membrane fuel cells (PEMFC) being prominent.
Current research focuses on improving efficiency and accessibility of fuel cell technologies.

Purpose of the Study:

To introduce a new fuel cell concept utilizing next-generation ceramic nanocomposites.
To explore semiconductor-ionic material combinations for enhanced ionic conductivity.
To highlight ceria-based and multifunctional electrolytes for improved fuel cell performance and cost-effectiveness.

Main Methods:

Development of novel ceramic nanocomposites with semiconductor-ionic properties.
Incorporation of a built-in electric field driving mechanism to boost ionic conductivity.
Review and analysis of promising functional nanocomposites for high power density.

Main Results:

The proposed fuel cell concept utilizes advanced ceramic nanocomposites.
A built-in electric field mechanism effectively enhances ionic (O2- or H+ or both) conductivity.
Non-doped ceria or its heterostructures show potential for achieving power densities of 1 Wcm-2.

Conclusions:

Next-generation ceramic nanocomposites offer a promising pathway for advanced fuel cell development.
Semiconductor-ionic electrolytes, particularly ceria-based materials, can lead to cheaper and more accessible fuel cells.
The integration of a built-in electric field driving mechanism is key to boosting ionic conductivity and power output.