Submission + - MIT create battery alternative out of cement, carbon black, and water (theregister.com)
KindMind writes: According to The Register, a combination of cement and carbon black crystals can act as a capacitor. From the story:
"Researchers at MIT claim to have found a novel new way to store energy using nothing but cement, a bit of water, and powdered carbon black – a crystalline form of the element.
The materials can be cleverly combined to create supercapacitors, which could in turn be used to build power-storing foundations of houses, roadways that could wirelessly charge vehicles, and serve as the foundation of wind turbines and other renewable energy systems – all while holding a surprising amount of energy, the team claims.
According to a paper published in the Proceedings of the National Academy of Sciences, 45 cubic meters of the carbon-black-doped cement could have enough capacity to store 10 kilowatt-hours of energy – roughly the amount an average household uses in a day. A block of cement that size would measure about 3.5 meters per side and, depending on the size of the house, the block could theoretically store all the energy an off-grid home using renewables would need."
"Researchers at MIT claim to have found a novel new way to store energy using nothing but cement, a bit of water, and powdered carbon black – a crystalline form of the element.
The materials can be cleverly combined to create supercapacitors, which could in turn be used to build power-storing foundations of houses, roadways that could wirelessly charge vehicles, and serve as the foundation of wind turbines and other renewable energy systems – all while holding a surprising amount of energy, the team claims.
According to a paper published in the Proceedings of the National Academy of Sciences, 45 cubic meters of the carbon-black-doped cement could have enough capacity to store 10 kilowatt-hours of energy – roughly the amount an average household uses in a day. A block of cement that size would measure about 3.5 meters per side and, depending on the size of the house, the block could theoretically store all the energy an off-grid home using renewables would need."
