Aquabattery BV is a Netherlands-based energy storage company developing long-duration electrochemical batteries that use aqueous, salt-based electrolytes. The systems are configured as flow batteries built from non-flammable, abundant materials, reducing reliance on critical metals.
The company focuses on multi-hour to multi-day energy storage to support renewable integration, grid balancing, and industrial and commercial power management. Activities span cell chemistry, stack and system design, and project engineering, with an emphasis on safety, sustainability, and circularity.