V2O5, or vanadium pentoxide, is a chemical compound composed of vanadium and oxygen. It appears as a yellow to red-brown solid and is primarily used in the production of vanadium alloys, which enhance the strength and durability of steel. Additionally, V2O5 serves as a catalyst in various chemical reactions, including the production of sulfuric acid. In nature, V2O5 is often found in minerals such as vanadinite and roscoelite. It is also utilized in the manufacturing of batteries, particularly in vanadium redox flow batteries, which are known for their energy storage capabilities.