Sodium-ion
Na-ion cell
ESS GRADEPRODUCT COMPARISON
Product comparison
Three product lines, each with its own strengths. Find the best energy storage solution based on your use case, performance needs, and cost structure.
High-energy Li-ion
Lithium-ion high-nickel
EV GRADESupercapacitor
EDLC
INDUSTRIAL01 / KEY SPECS
Key specs comparison
| SPEC | Sodium-ion | High-energy Li-ion | Supercapacitor |
|---|---|---|---|
| Energy density | 160 Wh/kg | 340 Wh/kg | — |
| Power density | — | — | 15,000 W/kg |
| Cycle life | 6,000+ | 2,500+ | 1,000,000+ |
| Operating temp | -40 ~ 80 °C | -20 ~ 60 °C | -40 ~ 70 °C |
| Response time | Seconds | Seconds | < 1 ms |
| Fast charge | 4C (15 min) | 4C (15 min) | Full in sec |
| Calendar life | 15 years | 10 years | 15+ years |
| Cost index (lower=better) | 0.30 | 1.00 | 0.80 |
■ = Best in category
02 / PERFORMANCE
Performance comparison
Energy density (Wh/kg)
Cycle life (×1,000)
Temp range (°C span)
Cost index (lower=better)
Sodium-ionHigh-energy Li-ionSupercapacitor★★ = Best in category
03 / USE CASE FIT
Use case recommendations
| SCENARIO | Sodium-ion | High-energy Li-ion | Supercapacitor |
|---|---|---|---|
| Grid-scale storage | ★ Best | Suitable | Hybrid |
| EV powertrains | SuitableUrban short-range | ★ Best | N/A |
| Commercial fleets | ★ Best | Suitable | N/A |
| Regenerative braking | N/A | N/A | ★ Best |
| UPS backup | Suitable | Suitable | ★ Best |
| Consumer electronics | N/A | ★ Best | N/A |
| Off-grid solar | ★ Best | Suitable | Hybrid |
| Port cranes | N/A | N/A | ★ Best |
04 / NEXT STEP
Found your solution?
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