Artificial Intelligence • Technology on Instagram: "Follow @Techs to learn more about the technology world everyday! What’s inside the battery powering your phone or car? It looks like a complex mess of plastic wrap, foil, and paste, but that mess is a tightly wound, highly engineered chemical machine. The core of a Lithium-ion battery is a layered sandwich of materials: the anode (typically graphite), the cathode (a metal oxide like lithium cobalt oxide), a porous plastic separator, and a liqui