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As the world transitions to renewable energy, energy storage becomes a critical piece of the puzzle. While lithium-ion batteries have dominated the market, there's growing interest in flow batteries — a technology uniquely suited for long-duration, grid-scale energy storage.

Let’s explore how flow batteries work, their advantages, and why they’re gaining traction in a clean energy future.

What is a Flow Battery?

A flow battery is an electrochemical energy storage device in which energy is stored in liquid electrolytes that flow through a cell stack. Unlike traditional batteries, the energy capacity and power output of a flow battery can be scaled independently by adjusting the tank size or stack size.

How Does It Work?

• Two tanks hold liquid electrolytes, typically containing metal ions in solution (e.g., vanadium).