Fluid batteries, also known as flow batteries, are rechargeable batteries that store energy in liquid electrolytes. Unlike traditional batteries, which store energy within the electrode materials, fluid batteries store energy in separate electrolyte tanks. By simply increasing the size of the electrolyte tanks, this system provides for scalable energy storage. Fluid batteries provide immense versatility and long-duration discharge capabilities by decoupling power and energy capacity.
One of the primary advantages of fluid batteries is their large energy capacity. Fluid batteries can store enormous amounts of energy without significantly increasing in size or weight since the energy is stored in liquid electrolytes. This makes them excellent for long-duration energy storage applications such as grid-scale energy storage, renewable energy integration, and backup power systems. Furthermore, fluid batteries have a long cycle life and can withstand a high number of charge-discharge cycles, making them a long-lasting and dependable energy storage solution.
Another advantage of fluid batteries is their built-in safety. Fluid batteries, unlike some other battery chemistries, use non-flammable electrolytes, which reduces the risk of fire or explosion. Separating the energy-storing electrolyte from the power-generating electrodes also aids with heat control and safety considerations. Furthermore, fluid batteries may work in a wide temperature range, making them suited for both indoor and outdoor installations in a variety of climates.