The foundation of
European sodium-ion.
Prussian White cathode active material – developed in Sweden, manufactured in Czechia. Made of abundant European raw materials, with no cobalt, nickel, or conflict minerals.
Why Prussian White?
Prussian White is the cathode chemistry enabling sodium-ion batteries at scale. Based on iron and sodium – two of the most abundant elements on earth – it combines strong performance with inherent material availability.
Over the past decade, Altris has developed and refined this chemistry, culminating in an industrial-scale production facility in Kolin, Czechia, already supplying industrial reference material today.
Designed to scale on output and on cost. Prussian White lets customers ramp volume without ramping their bill-of-materials risk.
The leading Na-ion chemistry.
The sodium-ion landscape sits on three cathode families. Altris builds on the only one without scarce or toxic raw materials.
| Battery tech | Chemistry | Example | Description |
|---|---|---|---|
| Na-ion | Altris Prussian WhiteAltris technology | NaxFe[Fe(CN)6] | The key cathode raw material is abundant and ~18× cheaper than Li2CO3. No scarce or toxic minerals. |
| Na layered oxides | P2-NaxMnMO2 | Still source supply-stringent metals similar to Li-ion technologies, e.g. nickel and/or manganese. | |
| Polyanionic materials | Na3V2(PO4)3 | Source vanadium – highly toxic – as one of the key raw materials. | |
| Li-ion | Nickel Manganese Cobalt (NMC / NCA) | LiNixMnyCo1-x-yO2 | First commercialised in 2008 by Tesla. NMC energy density has uplifted ~6× to ~300 Wh/kg. |
| Lithium Iron Phosphate (LFP) | LiFePO4 | First patented in the 1990s. A cheaper alternative to NMC. | |
| Lithium Manganese Iron Phosphate (LMFP) | LiMnFePO4 | Combines LFP and manganese for higher energy density than traditional LFP. Maintains the safety and longevity of LFP. |
Key properties.
Why this chemistry, in six points.
- 01Top-of-class energy density and specific capacity.
>160 Wh/kg cell-level and 160 mAh/g on cathode, approaching LFP territory.
- 02Unmatched power performance.
High-rate capability across the SOC range, suitable for both energy and power cell formats.
- 03Iron and sodium – no critical minerals.
No cobalt, nickel, or conflict-region dependencies.
- 04European raw material origin.
All precursors sourced within the EU. Verified, traceable, sovereign.
- 05Water-based processing.
No NMP or toxic solvents. Lower facility cost and friendlier permitting.
- 06Scalable from pilot to gigafactory.
Process parameters at Kolin transfer directly to partner manufacturing lines.
Available for supply and co-development.
Three commercial models, designed to give manufacturing partners a clear path to sodium-ion production.
01
Direct material supply
Off-take agreements for CAM produced at our Kolin facility, sized to your manufacturing line and ramp schedule.
02
Technology licensing
License the Prussian White production technology to manufacture in-house with process recipes, IP, and engineering support.
03
Joint development
Co-developed material variants tailored to your cell format or application. Shared roadmap, shared IP.
Common questions.
Prussian White is an iron-sodium compound used as the cathode in sodium-ion batteries. It contains no cobalt, nickel, or manganese, and is produced entirely from European raw materials.
Prussian White delivers comparable energy density to LFP while offering simpler raw material sourcing, lower processing complexity, and full European supply chain security – with substantially lower energy use in production.
Yes. Altris offers technology licensing for cell manufacturers wishing to integrate Prussian White into their own production. Contact us to discuss terms.