Researchers at the Massachusetts Institute of Technology (MIT) have developed a groundbreaking technology that could revolutionize energy storage by turning concrete into a giant battery writes Tom Ough for the BBC. This innovative approach, led by Damian Stefaniuk, involves creating supercapacitors from a mix of water, cement, and carbon black. These materials are abundant and inexpensive, potentially offering a sustainable alternative to lithium-ion batteries, which are currently the standard for energy storage but come with significant environmental and supply chain concerns.
The new technology works by leveraging the highly conductive properties of carbon black. When combined with cement powder and water, it forms a type of concrete that contains networks of conductive material. This structure allows the concrete to function as a supercapacitor, capable of accumulating and rapidly releasing large amounts of charge. Stefaniuk and his team have demonstrated the potential of this material by powering an LED light and a handheld gaming device using their carbon-cement supercapacitors.
One of the most promising applications of this technology is in the construction of energy-storing foundations for houses. By integrating carbon-cement supercapacitors into the structural elements of buildings, homes could store energy generated from renewable sources like solar panels and release it as needed. This would provide a significant boost to efforts aimed at decarbonizing the global economy by reducing reliance on intermittent energy sources and traditional batteries, which are resource-intensive and environmentally damaging.
While the technology is still in its early stages, with current prototypes capable of storing enough energy to power a 10-watt LED lightbulb for 30 hours, the potential is vast. Stefaniuk and his colleagues are optimistic about scaling up their invention. They envision a future where roads can wirelessly recharge electric vehicles and buildings serve as both shelter and energy storage. This innovation could play a crucial role in transitioning to a cleaner, more sustainable energy future.
Read more here: https://www.bbc.com/future/article/20240610-how-the-concrete-in-your-house-could-be-turned-into-a-battery