Flux XII Technology
With over 30+ combined years of in-lab research experience designing renewable energy materials and devices, the Flux XII co-founders have developed a safe, sustainable, and affordable flow battery chemistry to keep your renewable energy running!
Organic Redox Materials
What if instead of increasing global warming by burning carbon fuels, we could instead use sustainable and recyclable carbon to store renewable energy? The Flux XII team is powering this dream using organic flow battery chemistries produced from earth's most abundant elements. No more mineral mining or hectic supply chains when you can supply your battery material domestically!
Not only are these carbon-crafted energy solutions safe, sustainable, and low-cost, but they show enhanced energy density, cycling stability, and energy efficiency over any existing flow battery technology.


Ion-Exchange Membranes
Specially designed membranes are needed inside of all flow battery devices to prevent the positive (cathodic) and negative (anodic) chemicals from mixing. Membrane leakage lowers energy efficiency and lifetime, practically flowing your money down the drain!
The Flux XII co-founders are developing novel, early-stage ion-exchange membranes to improve the performance of all flow battery devices. These highly conductive, selective, and robust membranes can eventually be produced at large-scale and low-cost.
Flow Battery Technology
Flow batteries store electrical energy as chemical energy and are rechargeable, just like the batteries in your personal devices and electric vehicles! The difference? These battery chemicals are dissolved in water and flowed through the battery.
Anolyte
The electrolyte circulating on the anode side of the cell, releasing electrons through oxidation reactions during discharging and storing electrons through reduction reactions during charging.
Anode Electrode
Facilitates redox reactions in the anolyte. Releases electrons during discharging and accepts electrons from the external circuit during charging.
Membrane
A selective barrier that allows ions to pass while preventing the mixing of anolyte and catholyte.
Cathode Electrode
Facilitates redox reactions in the catholyte. Accepts electrons during discharging and releases electrons to the external circuit during charging.
Catholyte
The electrolyte circulating on the cathode side of the cell, accepting electrons through reduction reactions during discharging and releasing them through oxidation reactions during charging.
Pumps
Flow Battery Technology
Flow batteries store electrical energy as chemical energy and are rechargeable, just like the batteries in your personal devices and electric vehicles! The difference? These battery chemicals are dissolved in water and flowed through the battery.

Flow Battery Technology
Flow batteries store electrical energy as chemical energy and are rechargeable, just like the batteries in your personal devices and electric vehicles! The difference? These battery chemicals are dissolved in water and flowed through the battery.
Anode Electrode
Facilitates redox reactions in the anolyte. Releases electrons during discharging and accepts electrons from the external circuit during charging.
Anode Electrode
Anolyte
The electrolyte circulating on the anode side of the cell, releasing electrons through oxidation reactions during discharging and storing electrons through reduction reactions during charging.
Anode Electrode
Facilitates redox reactions in the anolyte. Releases electrons during discharging and accepts electrons from the external circuit during charging.
Membrane
A selective barrier that allows ions to pass while preventing the mixing of anolyte and catholyte.
Cathode Electrode
Facilitates redox reactions in the catholyte. Accepts electrons during discharging and releases electrons to the external circuit during charging.
Catholyte
The electrolyte circulating on the cathode side of the cell, accepting electrons through reduction reactions during discharging and releasing them through oxidation reactions during charging.
Pumps
Facilitates redox reactions in the anolyte. Releases electrons during discharging and accepts electrons from the external circuit during charging.
Grid Flow Battery Systems
The Flux XII team is prototyping kW-scale flow battery systems. Check it out below!
Want to get the most out of your renewable assets? Contact us to learn how you can be an early demonstrator of this safe, sustainable, efficient, and affordable long-duration energy storage technology as we scale to MW pilots.

Behind the Scenes

Why Flux XII?
Higher Energy Density
Our flow battery combines high-energy organic redox materials with advanced ion-exchange membranes that prevent leakage losses. This synergy enables an energy density of up to 50 kWh/m², ensuring you store more power with less electrolyte and less space.


Flux's BESS


Vanadium BESS


Other Flow Battery BESS
Lower Cost
Using abundant, cost-effective organic materials and ion-exchange membranes that extend battery lifespan by reducing leakage, our design minimizes both production and operational expenses, offering a more economical solution for long-duration energy storage.
















