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Rechargeable cement-based batteries

 
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Dr. N. Subramanian
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PostPosted: Thu Jun 03, 2021 6:42 pm    Post subject: Rechargeable cement-based batteries Reply with quote



Rechargeable cement-based batteries


Imagine an entire twenty storey concrete building which can store energy like a giant battery. Thanks to unique research from Chalmers University of Technology, Sweden, such a vision could someday be a reality.

Dr. Emma Zhang, formerly of Chalmers University of Technology, Sweden, joined Professor Luping Tang's research group several years ago to search for the building materials of the future. Together they have now succeeded in developing a world-first concept for a rechargeable cement-based battery.

The concept involves first a cement-based mixture, with small amounts of short carbon fibres added to increase the conductivity and flexural toughness. Then, embedded within the mixture is a metal-coated carbon fibre mesh - iron for the anode, and nickel for the cathode. After much experimentation, this is the prototype which the researchers now present.

Luping Tang and Emma Zhang's research has produced a rechargeable cement-based battery with an average energy density of 7 Watthours per square meter. Energy density is used to express the capacity of the battery, and a modest estimate is that the performance of the new Chalmers battery could be more than ten times that of earlier attempts at concrete batteries. The energy density is still low in comparison to commercial batteries, but this limitation could be overcome thanks to the huge volume at which the battery could be constructed when used in buildings. The fact that the battery is rechargeable is its most important quality, and the possibilities for utilization if the concept is further developed and commercialized are almost staggering.

The researchers see applications that could range from powering LEDs, providing 4G connections in remote areas, or cathodic protection against corrosion in concrete infrastructure. "It could also be coupled with solar cell panels for example, to provide electricity and become the energy source for monitoring systems in highways or bridges, where sensors operated by a concrete battery could detect cracking or corrosion," suggests Emma Zhang.

The concept of using structures and buildings in this way could be revolutionary, because it would offer an alternative solution to the energy crisis, by providing a large volume of energy storage. Concrete, which is formed by mixing cement with other ingredients, is the world's most commonly used building material. From a sustainability perspective, it is far from ideal, but the potential to add functionality to it could offer a new dimension.

The idea is still at a very early stage.
Source https://www.sciencedaily.com/releases/2021/05/210518114247.htm
Computer Engineering and Information Technology
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vikram.jeet
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PostPosted: Fri Jun 04, 2021 3:56 am    Post subject: Reply with quote

Rechargeable cement based batteries

Sir, this research is interesting. Hope it will take it's application status soon.
The batteries cement base , seems dry batteries
Moisture / humidity , how the mixture is protected against as cement if finds these , tend to set.

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vikramjeet
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