A flow battery is a type of rechargeable battery that stores energy in liquid electrolytes. These electrolytes flow through a cell where chemical reactions occur, generating electricity. Flow batteries are known for their ability to provide large-scale energy storage, making them suitable for applications like renewable energy integration and grid stabilization. Unlike traditional batteries, flow batteries can be easily scaled by increasing the size of the storage tanks. This feature allows for longer discharge times and greater energy capacity. Common types of flow batteries include vanadium redox and zinc-bromine, each with unique advantages for specific energy storage needs.