Vanadium pentoxide is a chemical compound with the formula V2O5. It is a bright yellow solid that is primarily used as a catalyst in various chemical reactions, particularly in the production of sulfuric acid. Additionally, it plays a role in the manufacturing of glass and ceramics, where it helps to improve color and durability. This compound is also significant in the field of energy storage, as it is used in vanadium redox flow batteries. These batteries are known for their ability to store large amounts of energy and provide a stable power supply, making them a promising technology for renewable energy applications.