Product Design
RoseStack own-brand sodium-ion battery system — Year 5 target (2030)
Na-ion Suppliers
6
4 in mass production
Best Cell
CATL
175 Wh/kg, 10k cycles
Compatible Inverters
4
of 6 evaluated
Target Savings
73%
vs Sigenergy £295/kWh
Cert Budget
£148k
9 milestones
Target Launch
2030
Year 5
Select Cells to Compare
| Specification | CATL Naxtra EV | BYD Sodium-Ion Gen1 | HiNa Battery Haixing K Series | Various (Alibaba/MiC) Generic Na-ion 3.0V |
|---|---|---|---|---|
| Origin | China | China (Xining) | China | China |
| Energy Density | 175 Wh/kg | 160 Wh/kg | 165 Wh/kg | 140 Wh/kg |
| Nominal Voltage | 3 V | 3.1 V | 3 V | 3 V |
| Capacity | 100 Ah | 80 Ah | 72 Ah | 50 Ah |
| Cycle Life | 10000 | 10000 | 8000 | 4000 |
| Temp Range | -40C to 70C | -40C to 60C | -40C to 45C | -20C to 55C |
| Cell Price | 40 $/kWh | 50 $/kWh | 55 $/kWh | 45 $/kWh |
| Pack Price | 65 $/kWh | 75 $/kWh | 80 $/kWh | 70 $/kWh |
| Production Capacity | 50 GWh | 30 GWh | 5 GWh | 10 GWh |
| Export to UK | Yes | Yes | Yes | Yes |
| MOQ | 500 kWh | 1000 kWh | 200 kWh | 50 kWh |
| Certifications | UN38.3, IEC 62619, UL 9540A | UN38.3, IEC 62619 | UN38.3 | None |
| Notes | World-leading Na-ion density. Deliveries to multiple customers from 2026. Cost $10-19/kWh at cell level claimed, pack-level ~$65/kWh realistic. | 30GWh Xining line operational July 2025. 180-200 Wh/kg Gen2 expected 2026. 30% cost reduction vs LFP claimed. | Chinese Na-ion specialist. 5GWh capacity. Already powering JAC Yiwei EV. Can accept global orders. | Various unbranded cells on Alibaba/Made-in-China. Prices $45-70/kWh. Quality variable. Need independent UN38.3 testing. Risk: no warranty backing. |