A platform
proven end-to-end.
From lab chemistry to pilot line to industrial reference cell.
Prussian White, productised.
Altris is built on a decade of sodium-ion research originating in Sweden. The platform spans a proprietary Prussian White cathode, a bio-based hard-carbon anode, and our patented, inherently fire-resistant NaBOB electrolyte – produced on a functioning cell pilot line and proven through an active industrial validation programme with manufacturing partners across Europe.
Prussian White is a stable, open-framework material made from salt, wood, iron, and air. Its large pores capture and store sodium ions, and it is free of cobalt, nickel, and conflict minerals – the chemistry that makes independent European sodium-ion a reality.
An open framework for sodium.
Large pores let sodium ions intercalate in and out during charge and discharge – built from salt, wood, iron, and air.
The bridge from lab to factory floor.
The Uppsala facility is not a demonstration lab. It is a functioning production line that produces industrial reference cells to the same specification that our manufacturing partners will run at scale. This is the physical proof that Altris chemistry is not a laboratory concept – it is a production reality.
Uppsala – pilot line
15 MWh/yr
Pilot line
100 MWh/yr
Electrode
Kolin, Czechia – CAM
175 MWh/yr
In production
3,000 MWh/yr
Expansion
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01 Synthesis
CAM from European materials
Cathode active material synthesised from European raw materials at Kolin.
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02 Assembly
Pilot production line
Cell assembly on the Uppsala pilot line – production-equivalent equipment.
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03 Reference cells
To industrial partners
Reference cells delivered to qualified partners for integration testing.
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04 Scale-up
Validated parameters
Partner manufacturing scale-up using parameters proven at Uppsala.
Proven, not just produced.
The reference cells from our Uppsala pilot line do not just leave the factory – they are put through a rigorous validation programme across the conditions that matter most: cold-start at -40C, long-term cycle life on production-equivalent cells, and abuse testing for safety.
Test 01
Starts at -40C. Every time.
Full power delivery in extreme cold. Tested in environmental chambers against lead-acid and LFP.
Test 02
>8,000 cycles. 10 years.
Continuous cycling on production-equivalent cells. Capacity retention at OEM-relevant DOD.
Test 03
Zero thermal runaway.
Nail penetration, overcharge, crush. No venting, no fire propagation. Best-in-class safety.
Production-equivalent parameters, transferable to partner lines.
Every parameter in our performance data is derived from cells built on production-equivalent equipment. The manufacturing process uses water-based electrode coating – eliminating NMP, PFAS and toxic solvents – and is directly transferable to partner facilities running existing lithium-ion production lines.
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CAM synthesis
Prussian White cathode
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Water-based slurry
No NMP solvents
Water-based
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Electrode coating
Onto current collector
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Calendering
Densify and dry
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Cell assembly
Stacked and sealed
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Formation and test
Industrial reference cell
Lower carbon, cradle-to-gate.
We assess every Altris cell from raw-material extraction through manufacturing – a cradle-to-gate boundary, measured per kilowatt-hour. The result is a sodium-ion cell with a materially lower carbon footprint than today’s lithium-ion, with a clear roadmap to reduce it further.
~60%
Lower CO₂ vs Li-ion (LFP) Today
25 kg
CO₂ / kWh per cell, today
7.2 kg
CO₂ / kWh at cathode (CAM), today
| Cradle-to-gate, Europe * | Altris TODAY | ALtris 2030 | Li-ion NMC | Li-ion LFP |
|---|---|---|---|---|
| CO₂ footprint, kg / kWh | 25 | 4 | 33 | ~60 |
| Cobalt and nickel | None | None | Required | None |
| Lithium | None | None | Required | Required |
| Conflict-mineral exposure | None | None | Higher | Lower |
Why it is lower
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Lower cathode emissions. Prussian White synthesis avoids the calcination step that is the largest single driver in lithium-ion cathode production.
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Less process energy. Sodium-ion cell assembly needs far less dry-room intensity than lithium-ion.
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Water-based electrodes. Coating uses water instead of NMP or PFAS – eliminating the toxic-solvent recovery step.
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Bio-based hard carbon. The anode uses hard carbon from wood-industry feedstock rather than mined graphite.
* Cradle-to-gate (raw material to manufacturing), per kWh, based on LCA methodology.