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Welcome to Flux XII

We are an Organic Energy Storage Solutions start-up company.

Go with the Flow

Why choose Flux XII flow battery technology over other grid energy storage solutions? Learn more!

Sustainable Battery

Sustainable

Safe Battery

Safe

Reliable Battery

Reliable

Efficient Battery

Efficient

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Organic Redox Materials
Ion-Exchange Membranes
Grid Flow Battery Systems

Organic Redox Materials
Ion-Exchange Membranes
Grid Flow Battery Systems

Organic Redox Materials
Ion-Exchange Membranes
Grid Flow Battery Systems

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High Areal Energy Density: Compact and Safe

Although lithium-ion batteries have an average energy density of 34 kWh/m², safety regulations require significant spacing between units, increasing their overall footprint. In contrast, flow batteries, with non-flammable electrolytes, can be vertically scaled. For example, with an 8-meter tank, flow batteries can achieve up to 50 kWh/m², offering similar capacity but with a much smaller footprint, making them ideal for space-constrained installations​.

Fire-Safe Energy Storage

Flow batteries use non-flammable aqueous electrolytes, eliminating the fire risks associated with lithium-ion batteries. This makes them ideal for deployment in densely populated urban areas, where safety is a top priority. Unlike lithium-ion systems, which require extensive safety measures and spacing, flow batteries can be installed in buildings or underground, offering safe and reliable energy storage close to consumers​.

Long Duration

Flow batteries excel in long-duration energy storage, offering reliable performance for 8 to 100 hours of continuous discharge. This makes them ideal for stabilizing intermittent renewable energy sources, such as solar and wind, ensuring a consistent power supply even when the sun isn't shining or the wind isn’t blowing. Unlike lithium-ion systems, flow batteries scale efficiently for longer durations without a significant cost increase, making them the perfect solution for long-term, large-scale energy storage​.

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High Areal Energy Density: Compact and Safe

Up to 50 kWh/m² with vertical scaling—ideal for space-constrained installations.

Fire-Safe Energy Storage

Flow batteries use non-flammable aqueous electrolytes, eliminating the fire risks associated with lithium-ion batteries. This makes them ideal for deployment in densely populated urban areas, where safety is a top priority. Unlike lithium-ion systems, which require extensive safety measures and spacing, flow batteries can be installed in buildings or underground, offering safe and reliable energy storage close to consumers​.

Long Duration

Flow batteries excel in long-duration energy storage, offering reliable performance for 8 to 100 hours of continuous discharge. This makes them ideal for stabilizing intermittent renewable energy sources, such as solar and wind, ensuring a consistent power supply even when the sun isn't shining or the wind isn’t blowing. Unlike lithium-ion systems, flow batteries scale efficiently for longer durations without a significant cost increase, making them the perfect solution for long-term, large-scale energy storage​.

Join Our Mission

"People like this make me hopeful that we can still win the fight against climate disaster if we act now and act together!"

- Patrick Sullivan, Flux XII CEO and co-founder

Flux XII Team
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