Ever since the first introduction of Evs, we have been finding ways to improve upon them to make them more efficient, faster. One of the ways they have done this is by improving upon the batteries that are used in the cars. Companies such as 24M and Phinergy are discovering new ways to make the batteries lighter, last longer, and deliver more power. Most Evs nowadays use Lithium Ion batteries which are very efficient, but not as effecient as the new metal-air batteries, more specifically, the Aluminum-air battery. A conventional battery consists of an anode and a cathode, where the cathode takes up to 70% of the battery’s weight. The cathode is used as a container for a reactant (e.g. Oxygen), usually up to 5% of its weight, that is required for releasing the energy in a metal anode. The result is that most of a conventional battery’s weight is poorly utilized. The Aluminum-air battery features an air-electrode that breathes oxygen from ambient air, instead of the conventional cathode. That is, the battery consumes the required oxygen from the air, rather than having heavy materials that bound oxygen inside it. So the battery delivers high capicatance with very low weight compared to the traditional batteries.