Cement-based batteries could turn concrete buildings into giant energy stores

2021-05-21T08:58:00-04:00

Researchers at Chalmers University of Technology in Sweden have published unique research into the idea of rechargeable batteries made from cement. The team, led by Doctor Emma Zhang and Professor Luping Tang at the institution’s Department of Architecture and Civil Engineering, believes the development of this technology may yield a future where twenty-story concrete buildings can store energy as one giant battery.

The concept for Chalmers’ battery system begins with a cement-based mixture, to which small amounts of short carbon fibers are added to increase the material’s conductivity. A metal-coated carbon fiber mesh is then embedded within the mixture, with iron for the anode and nickel for the cathode, forming a high-strength battery system on an architectural or urban scale.

Schematic illustration of a design for the metal-coating battery. Image: Emma Zhang and Luping Tang

The research, published in the scientific journal Buildings, estimates that the new battery’s capacity ...

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Cement-based batteries could turn concrete buildings into giant energy stores