Cement Batteries

Researchers in Europe recently created the world’s first cement-like material that pulls double duty: it acts as both a structural building material and an electrolyte capable of storing and releasing electrical energy.

In Alberta, we’d call that a 2-for-1 (2fer). 

By embedding electrolytes into concrete, you turn the bones of a building into a battery. The material, which uses short carbon fibers, currently produces 7 watt-hours per square meter (0.8 watt-hours per liter). That’s ten times higher than previous concrete battery attempts, although still not on par with traditional batteries.

https://www.chemistryworld.com/news/cement-like-building-material-doubles-up-as-an-electrolyte-in-rechargeable-battery/4021469.article

Of course, there will be building code implications and other challenges to work through before architects, structural engineers, and electrical engineers start designing with this kind of material.

What I’m curious about is how will developers underwrite projects where battery-powered concrete is fully integrated into the structure?

As the tech improves and battery lifespan increases, the possibilities open wide—powering LEDs, enabling 4G in remote areas, or even self-powered sensors to monitor infrastructure. Paired with solar panels, this could mark a big shift in how we think about sustainability in buildings.