The E-Series.
Endurance cell.
A sodium-ion cell optimised for endurance. Long cycle life, broad temperature window, and validated for drop-in integration on existing manufacturing lines.
Available for strategic partnerships
Highlights.
| Electrochemistry | PBA Sodium-ion, energy-optimised Prussian White cathode, Hard Carbon anode |
| Optimised for | Endurance |
| Nominal capacity | 50-300 Ah |
| Energy density | Above 160 Wh/kg |
| Nominal / operating voltage | 3 V / 2-3.8 V |
| Cycle life | >8,000 cycles |
| Calendar life | 20 years |
| Formats | Prismatic and pouch |
| Operating temperature | -40C to +65C |
| Transport class | Non-Dangerous Goods |
| 0V logistics | Yes |
PBA-based Na-ion delivers broad-based performance across all key low-voltage metrics.
Key advantages beyond electrochemical performance.
- PFAS-free cells. Compliant with REACH & RoHS.
- Water-based electrode coatings. Eliminates toxic solvents (e.g. NMP), lowering processing cost and easing environmental compliance.
- Aluminium-only electrodes. Eliminates copper foil, simplifying logistics and cutting material cost.
- 0V storage capability. Long-term storage and logistics without maintenance charging.
- Drop-in compatible with Li-ion manufacturing lines.
Commercial models.
Three routes into integration with the E-Series.
01
Production supply
Direct purchase, scaled to volume. Standard Altris E-Series cells, off-take agreements sized to your ramp.
02
Sample access
Prototype cells for evaluation. Engineering support to integrate into your pack design and BMS.
03
Co-development
Integration partnership. Tailored cell variants for your application, shared roadmap, shared IP.
Common questions.
The E-Series is optimised for long-duration endurance applications with maximum cycle life. The P-Series is optimised for high C-rate applications requiring rapid, repeatable power delivery. Both are built on the same Prussian White cathode active material.
The Gen 1 E-Series has been validated in a 36V 12S1P system with a max discharge current of 225A and a voltage range of 1.8-3.8V per cell. Integration support and BMS guidance are available from our engineering team.
No. Altris sodium-ion cells are classified as Non-Dangerous Goods (Class 9 Exempt) and can be stored and shipped at 0 volts.
Built on Altris’ proprietary CAM
Our Prussian White powers both Power and Energy applications.
The E-Series uses the same Prussian White cathode active material as the P-Series – iron and sodium, manufactured in Czechia from European raw materials. One chemistry, two cell formats, every market segment.
