Next-Generation Sodium-Ion Battery Systems
Safe. Lightweight. High-performance. Engineered for modern mobility platforms, telecom infrastructure, UPS systems, and clean energy applications.
Technology
Why Sodium-Ion Batteries Are the Smarter Choice
The global battery landscape is entering a structural transition. Rising lithium costs, increasing safety requirements, and accelerating charging infrastructure are reshaping automotive energy storage. The market increasingly needs a chemistry optimized for frequent cycling, heat, fast charging, and partial-state-of-charge operation.
Abundant raw materials
Sodium is widely available, reducing supply-chain and geopolitical risk
Low-temperature strength
Stable operation down to -40°C with very good power retention
Multiple safety protections
No thermal runaway behavior and zero-volt storage tolerance
Longer cycle life
High cycle durability at full depth of discharge and under frequent intermediate-SOC cycling.
Low self-discharge
Less than 3% per month, unlike lead-acid and lithium-ion, requiring no regular SOC maintenance in storage.
Mission & Vision
We are not competing on peak energy density. We are optimizing for real-world robustness.
The Automotive Shift
Built for the Advancing Needs of Modern Vehicles
Modern electrical systems are fundamentally incompatible with traditional lead-acid behavior. Start-stop operation, regenerative braking, and high hotel loads create frequent micro-cycling and long periods at partial state of charge: exactly the conditions under which lead-acid degrades fastest.
Sodium-ion technology delivers faster charging capability, stable performance across a wide temperature range, simplified storage for easier handling, and reliable operation across demanding environments compared to conventional battery systems.
Performance Comparison
Key benchmarking across battery chemistries
| Parameter | Sodium-Ion (Na-ion) | AGM Lead-Acid | Flooded Lead-Acid | Lithium-Ion (LFP) |
|---|---|---|---|---|
| Nominal Voltage | 12.8-13.2 V | 12.6 V | 12.6 V | 12.8-13.2 V |
| Capacity (Ah) | 40-60 Ah* | 60 Ah | 60 Ah | 50-60 Ah* |
| Usable Capacity | ~90-100% | 50-70% | 60-70% | ~70-85% |
| Cold Cranking (CCA EN) | 600-900 A | 600-850 A | 500-650 A | 400-700 A |
| Internal Resistance (BOL) | ~2-5 mΩ | ~4-8 mΩ | ~6-10 mΩ | ~1-3 mΩ |
| Pulse Current (10s) | 5-10C | 1-3C | 1-2C | 10-20C |
| Cycle Life @ 80% DoD | 3,000-8,000 | 300-600 | 200-400 | 3,000-8,000 |
| Charge Acceptance (Dynamic) | High (full SOC range) | Limited >80% SOC | Moderate | Very High |
| Charge Time (0-80%) | ~0.3-1.5 h | 4-8 h | 3-6 h | ~0.5-2 h |
| Weight | 6-10 kg | 17-20 kg | 16-18 kg | 6-10 kg |
| Operating Temp (discharge) | -30 to +60°C | -18 to +50°C | -18 to +50°C | 0 to +55°C |
| Low-Temp Power Retention | Very Good | Poor | Poor | Poor-Moderate |
| Self-Discharge (monthly) | <3% | 3-5% | 4-6% | <3% |
| Refresh Charge Needed | No | Yes, every 3-6 months | Yes, every 3-6 months | Yes (SOC 30-50%) |
| Zero-Volt Tolerance | Yes | No | No | No |
Note: Comparative performance trends are indicative and based on typical commercial automotive and ESS-grade battery systems; they do not represent best-case laboratory cell marketing data. *Lower Ah due to higher usable capacity and power density.
Temperature Resilience
Power performance holds across temperature extremes
Sodium-ion sustains high power output where lead-acid chemistries fade in cold and heat.
- Sodium-Ion (Na-ion)
- Lithium-Ion (LFP)
- AGM Lead-Acid
- Flooded Lead-Acid
Comparative performance trends are indicative and based on typical commercial automotive and ESS-grade battery systems under moderate-to-high pulse load; they do not represent best-case laboratory cell marketing data.
Lifetime Economics
Longer operational life, radically lower TCO
The economics improve not merely through cycle life, but through operational survivability in harsh conditions. Lifetime figures are projected/early-field estimates depending on supplier maturity.
3x longer SLI life
Typical service life of 6-12 years in starter battery duty, vs. 2-4 years for flooded lead-acid
5x mild-hybrid multiplier
Operational robustness under frequent microcycling multiplies service life in 12V/48V mild-hybrid duty
Radically lower TCO
High cycle life plus partial-SOC tolerance resist the degradation mechanisms that fail batteries in the field
Safety
Engineered for demanding conditions and absolute safety
Built for Indian summers, unstable grids, and demanding mobility environments.
No thermal runaway
Eliminates the fire risk profile associated with lithium chemistries.
Zero-volt tolerance
Can be shipped and stored at 0 V safely, with charge retention for up to 3 months.
High-temperature strength
Strong performance in ambient temperatures up to +60°C.
Robust charging behavior
Reliable under irregular and volatile charging conditions.
Applications
One chemistry. Many applications.
From automotive start-stop systems to telecom racks and material handling: sodium-ion supports the evolving energy requirements of modern platforms.
Automotive Start-Stop
D- and H-series 12V batteries in six European sizes, up to 1025 W and 1000 A cold-cranking, stable down to -40°C.
Telecom Systems
48V 3U/4U rack systems with a 15-year design life, ≥3,500 cycles, intelligent BMS, remote monitoring, and anti-theft protection.
UPS Power Supply
12V modules from 5 to 10 Ah with high energy density, fast charging, and up to 18 months of storage without a refresh charge.
Electric Forklifts
48.8V / 70Ah / 10.24 kWh systems with 6C high-rate continuous discharge and 2C fast charging for demanding material handling.
Golf Carts
48.8V / 70Ah systems with 2C fast charging and stable discharge across a -40 to 60°C operating range.
Residential Inverters
Residential inverter and storage solutions configured to operational requirements, including 12V 160Ah ESS cells.
Cell formats
One chemistry, two cell formats
The same sodium-ion chemistry is built in two cell formats, so the pack can follow the application rather than the other way round.
Cylindrical cells carry our modular systems. The NaCR46145-15PR is the reference format wherever many identical cells are stacked into a pack and thermal paths need to stay short and predictable.
Prismatic cells go where a flat, space-efficient block is the better fit. They sit inside the 12V stationary storage line, for example the NX-ESSNa12160, and inside our telecom systems built on the NaCP50160118-80E3 and NaCP50160153-100E3.
Both formats share the same cell chemistry, the same safety architecture and the same BMS platform, which keeps qualification effort and spare part logistics on one track.
Technical Specifications
D Series: Automotive Start-Stop
| European Standard | D23/Q85 | D26/S95 | D31/T115 |
|---|---|---|---|
| Rated Voltage | 12V | 12V | 12V |
| Power Parameters | 400W | 660W | 820W |
| CCA (-5°C) | 600A | 800A | 850A |
| Weight | ≤5.5±0.5 kg | ≤7.5±0.5 kg | ≤9.0±0.5 kg |
| Dimensions | 231 × 175 × 222 mm | 261 × 175 × 223 mm | 306 × 173 × 222 mm |
Note: High-level specs only; inquire for detailed specifications. Bespoke/tailored packages available; written quotation on request.
Technical Specifications
H Series: Automotive Start-Stop
| European Standard | H4 | H5 | H6 | H7 | H8 | H9 |
|---|---|---|---|---|---|---|
| Rated Voltage | 12V | 12V | 12V | 12V | 12V | 12V |
| Power Parameters | 400W | 418W | 660W | 820W | 880W | 1025W |
| CCA (-5°C) | 600A | 600A | 800A | 850A | 900A | 1000A |
| Weight | ≤5.5±0.5 kg | ≤5.5±0.5 kg | ≤7.5±0.5 kg | ≤9.0±0.5 kg | ≤9.5±0.5 kg | ≤11.0±0.5 kg |
| Dimensions | 207 × 175 × 189 mm | 242 × 175 × 190 mm | 278 × 175 × 190 mm | 315 × 175 × 190 mm | 353 × 175 × 190 mm | 394 × 175 × 190 mm |
Note: High-level specs only; inquire for detailed specifications. Bespoke/tailored packages available; written quotation on request.
Energy Storage Systems
Stationary 12V Storage
Prismatic sodium-ion cells for residential and light-commercial energy storage.
| Parameter | NX-ESSNa12160 |
|---|---|
| Cell Type | Prismatic Sodium-Ion Cell |
| Rated Voltage | 12 V |
| Rated Capacity | 160 Ah |
| Dimensions (D×W×H) | 390 × 200 × 340 mm |
| Weight | 30 ±1 kg |
| Service Life | 10 years |
| Energy Efficiency | ≥98% |
| Cycle Life | ≥8,000 (25°C, 0.5C/0.5C @ 80% DoD) |
| Operating Temperature | -40 to 80°C |
High-level specs only; inquire for detailed specifications. Bespoke/tailored packages available; written quotation on request.
Brochure
Explore the full sodium-ion product range.
