Technology

New horizons for cost-effective energy storage arise with our focus on durability, recyclability and the use of low-cost abundant non-toxic materials. Even with the current dropping prices of Li-ion batteries we expect to be cheaper.

Below our flooded NiFeS battery prototype is shown. This is the blueprint for our first 1 kWh pack, having a replaceable ‘circular economy’ design. Our novel iron-anode provides a solution to the drawbacks caused by the iron anode in the traditional Nickel-Iron system, originally developed by Thomas Edison. With our patented chemistry, envisioned rethinking electrode- and cell design and recycling possibilities we aim to achieve the lowest cost per stored kWh available.

Nickel-based electrodes have an astonishing lifetime thousands of cycles. We have achieved 2300 full Depth of Discharge cycles on our iron electrodes, cycling 3-4 times a day. Nickel-iron batteries are known for their long lifetime and ability to cycle 10.000 times and our expectation is that with our novel production method we can bring our chemistry to those cycle life levels and maintain the improved charge-discharge kinetics.

  • Ability to charge and discharge in 15 min.
  • 100% Depth of Discharge without failure
  • 75-80% round trip efficiency
  • Lower the costs of production by our novel electrode production technique excluding the need of a substrate, the most expensive part of the electrode.
  • Using a case design that makes it more easy to recycle and replace all components that have degraded separately.
  • < 0.03€ / kWh Levelized Cost of Storage

We are currently scaling our cells and optimize our scaling, cutting, pasting and sizing of the electrodes. We work towards cylindrical sealed nickel-iron batteries. With our current R&D efforts we are on our way to combine our achievements with its long cycle life promise but we still have some challenges ahead. The self-discharge is currently 1-3% a day and should be understood and minimized. The Round Trip Efficiency is around 70% and can be increased. The efficiency loss occurs mainly because we form hydroxen and oxygen gas during charging.