Low-cost additive turns concrete slabs into super-fast energy storage
• https://newatlas.com, By Loz BlainMIT researchers have discovered that when you mix cement and carbon black with water, the resulting concrete self-assembles into an energy-storing supercapacitor that can put out enough juice to power a home or fast-charge electric cars.
Maybe this is what Elon needs in his Teslas! Lol.