July 17, 2018 | News Brief | “Today’s batteries use flat metal sheets that are coated with anode and cathode materials. We start with a three-dimensional copper foam, which has a high surface area because it is porous, so you can get more capacity in the same footprint as a standard battery. But you can still have fast charge and discharge because ions move through the porous foam easily.” So Amy Prieto explains her new take on lithium-ion batteries to Chemical & Engineering News. Her company, Prieto Battery, is commercializing her research with investment from Intel and Stanley Black & Decker.