HIGHSTAR SODIUM 65.9kWh Air-Cooled Sodium-Ion Storage UPS: 160Ah Large-Capacity Safe Energy Backup
As the global demand for secure and sustainable energy storage accelerates, HIGHSTAR SODIUM stands at the forefront of technological innovation. As a high-tech enterprise dedicated to the R&D and industrialization of sodium-ion battery energy storage technology, we are committed to providing global customers with high-safety, low-cost, and sustainable energy storage solutions. We are proud to introduce the HIGHSTAR SODIUM 65.9kWh Air-Cooled Sodium-Ion Storage UPS, a groundbreaking system engineered to redefine reliability in critical power applications. This product leverages advanced sodium-ion chemistry to deliver uncompromising safety, exceptional cycle life, and superior performance for modern energy infrastructure.
Key Product Highlights
The HIGHSTAR SODIUM 65.9kWh Air-Cooled Sodium-Ion Storage UPS is designed to meet the rigorous demands of B2B energy storage. Key highlights include:
- Flagship 160Ah Large-Capacity Sodium-Ion Cells: Powered by HIGHSTAR SODIUM’s self-developed NFPP-2.86V-160Ah large-capacity sodium-ion cells, delivering 160Ah per cell — a leading capacity in the sodium-ion battery market. The 160Ah high-capacity design means fewer cells in series for the same system capacity, reducing BOM costs, simplifying consistency management, and laying a solid foundation for both safety and cost-effectiveness at the cell level.
- High System Capacity: Delivers a total usable capacity of 65.9kWh, ideal for medium to large-scale backup and peak-shaving applications.
- Superior Energy Efficiency: Achieves an energy conversion efficiency of ≥92%, minimizing energy loss and operational costs.
- Extended Cycle Life: Engineered for longevity with ≥3000 cycles, providing an exceptional return on investment over its lifespan.
- Wide Operating Temperature Range: Air-cooled design operates reliably from -20°C to +55°C (with derating above 45°C), perfect for diverse climates.
- Intelligent Communication: Features Ethernet/RS485 interfaces with Modbus TCP/RTU protocols for seamless integration into existing EMS/BMS platforms.
- User-Friendly Interface: Equipped with a 4.3-inch LED display for real-time monitoring and easy diagnostics.
- Compact Footprint: Dimensions of 984 x 1260 x 1570mm with a weight of approximately 850kg, optimizing space utilization in technical rooms.
The cell is the “heart” of any energy storage system, and its capacity and quality directly determine overall system performance. HIGHSTAR SODIUM’s 65.9kWh Air-Cooled Sodium-Ion Storage UPS is built around its self-developed NFPP-2.86V-160Ah large-capacity sodium-ion cells, achieving breakthrough advancements in energy density, cycle life, and safety — three core performance metrics. The 160Ah large-capacity design enables each pack (1P18S) to deliver a nominal capacity of 160Ah and 8.24kWh of energy, with eight packs in parallel yielding a total system capacity of 65.9kWh — a significant magnitude advantage among comparable sodium-ion storage products.
From a system architecture perspective, the 160Ah large-format cell means fewer parallel cells are needed to achieve target capacity, which reduces the complexity of cell-to-cell consistency management and improves overall system reliability and maintainability. Moreover, the intrinsic safety of sodium-ion chemistry — no cobalt or nickel content, significantly higher thermal runaway temperature compared to lithium-ion, and no oxygen release during thermal events — when combined with the 160Ah large capacity, enables HIGHSTAR SODIUM to deliver large-scale energy storage while fundamentally eliminating the large-scale thermal runaway risks associated with conventional lithium-ion batteries.
Furthermore, HIGHSTAR SODIUM’s 160Ah cells have undergone rigorous cycle testing validation, demonstrating excellent capacity retention after full charge-discharge cycles, with the system achieving ≥3,000 cycles. Paired with the intelligent air-cooling thermal management system that ensures uniform operation across all cells within the -20°C to +55°C wide temperature range, the full performance potential of the large-capacity cells is fully realized, delivering longer-lasting value for customers.
Core Technical Specifications
| Specification | Details |
| Cell Type | NFPP-2.86V-160Ah Sodium-Ion |
| System Capacity | 65.9kWh |
| Nominal Voltage | 411.84Vdc |
| Voltage Range | 288V ~ 496.8V |
| Configuration | 1P144S (8 packs in parallel, 1P18S per pack) |
| Energy Conversion Efficiency | ≥92% |
| Cycle Life | ≥3000 cycles |
| Cooling Method | Air Cooling |
| Operating Temperature | -20°C ~ +55°C (derate above 45°C) |
| Protection Level | IP20 |
| High-Voltage Box | DC1000V / 600A, dual power supply |
| Communication | Ethernet/RS485, Modbus TCP/RTU |
| Fire Suppression | PACK-level aerosol (GB/T 42288 compliant) |
| Display | 4.3-inch LED |
| Dimensions (WxDxH) | 984 x 1260 x 1570mm |
| Weight | ~850kg |
| Certifications | GB/T 44265, IEC62619, UN38.3, CE-EMC |
HIGHSTAR SODIUM Technology Advantages
- Next-Generation Sodium-Ion Chemistry: By utilizing NFPP-2.86V-160Ah cells, HIGHSTAR SODIUM maximizes the inherent safety and cost-effectiveness of sodium-ion technology, offering a superior alternative to traditional lithium-ion systems for stationary storage.
- Optimized Thermal Management: The precision air-cooling system ensures uniform temperature distribution across all 160Ah cells, maintaining peak performance and extending battery life even in extreme environmental conditions.
- Seamless System Integration: With a nominal voltage of 411.84Vdc and standard Modbus communication, the HIGHSTAR SODIUM UPS integrates effortlessly with a wide array of inverters, BMS, and energy management systems.
- Robust High-Voltage Architecture: The dedicated high-voltage box (DC1000V/600A) with dual power supply ensures stable power delivery and reliable operation under heavy loads.
- Sustainable and Cost-Efficient: Sodium-ion technology reduces reliance on scarce critical minerals, offering a more sustainable supply chain and lower total cost of ownership (TCO) for enterprise clients.
Ultimate Safety: Multi-dimensional Protection System
Safety is the cornerstone of the HIGHSTAR SODIUM 65.9kWh Air-Cooled Sodium-Ion Storage UPS. We have engineered a comprehensive, multi-layered safety architecture to ensure absolute protection for personnel, assets, and data.
Intrinsic Safety of Sodium-Ion Batteries
The fundamental safety of the HIGHSTAR SODIUM system begins with the chemistry of our 160Ah sodium-ion cells. Unlike lithium-ion batteries, sodium-ion cells exhibit a significantly higher thermal runaway initiation temperature. Crucially, they do not release oxygen during thermal events. This intrinsic characteristic virtually eliminates the risk of fire and explosion, providing a foundational level of safety that passive or active systems cannot achieve alone.
PACK-Level Aerosol Fire Suppression
As a secondary defense layer, each individual battery pack within the HIGHSTAR SODIUM system is equipped with an integrated aerosol fire suppression system. Fully compliant with the GB/T 42288 standard, this system is self-powered and requires no external electrical connection. It features automatic detection, startup, and extinguishing capabilities, ensuring that any localized thermal anomaly is suppressed instantly at the source before it can propagate to adjacent packs.
BMS Multi-level Intelligent Protection
The Battery Management System (BMS) in the HIGHSTAR SODIUM UPS provides continuous, multi-level monitoring and protection. It actively guards against overcharge, over-discharge, over-temperature, short circuits, and over-current conditions. Furthermore, the BMS employs active balancing technology to maintain cell-to-cell uniformity across the 1P144S configuration, maximizing capacity utilization. In the event of a fault, the system can isolate the affected module, ensuring the remainder of the 65.9kWh system continues to operate safely.
High-Voltage Box Safety Design
The high-voltage distribution box is engineered with a three-level protection scheme: a DC circuit breaker, a fast-acting fuse, and a high-voltage contactor. This redundant protection ensures rapid isolation during electrical faults. Additionally, the box features continuous insulation monitoring and explosion-proof pressure relief mechanisms, providing an extra layer of security for high-voltage components.
Authoritative Safety Certifications
HIGHSTAR SODIUM places product quality and safety at the forefront of everything we do. The 65.9kWh Air-Cooled Sodium-Ion Storage UPS has undergone rigorous testing and earned multiple internationally recognized certifications and standard compliances covering battery safety, system performance, electromagnetic compatibility, and environmental adaptability — ensuring global market deployment compliance.
In terms of battery and system safety, the product complies with GB/T 44265-2024 (Sodium-Ion Battery Technical Specification for Power Energy Storage Stations), IEC 62619-2022 (Safety requirements for industrial secondary cells and batteries), IEC 63056-2020 (Safety requirements for sodium cells and batteries), and GB/T 34131-2023 (Battery Management System for Power Energy Storage). For system-level certification, the product meets GB/T 36547-2018 (Technical Specifications for Grid Connection of Electrochemical Energy Storage Systems) grid integration requirements and has passed UN38.3 dangerous goods transport certification, supporting global sea and land transport compliance.
Additionally, the product has obtained CE-EMC electromagnetic compatibility certification, GB 4208-2008 enclosure protection rating (IP20) certification, GB/T 17626 electromagnetic compatibility test series certification, GB/T 14048.1 low-voltage switchgear certification, and IEC 60068-2-6 vibration testing certification. This forms a comprehensive compliance assurance system spanning from cell to system, from manufacturing to transportation.
HIGHSTAR SODIUM continues to expand its international certification portfolio, including additional regional certifications such as UL and TÜV, to provide even more comprehensive compliance support for global customers. We welcome partners to request complete certification documents and technical dossiers at any time.
Sodium-ion vs Lithium-ion Safety Comparison
| Safety Feature | HIGHSTAR SODIUM (Sodium-Ion) | Traditional Lithium-Ion |
| Thermal Runaway Temp | Significantly Higher | Lower |
| Oxygen Release | None | Yes (Exothermic Reaction) |
| Fire/Explosion Risk | Extremely Low / None | Moderate to High |
| Intrinsic Safety | High | Requires Extensive Management |
Typical Application Scenarios
The HIGHSTAR SODIUM 65.9kWh Air-Cooled Sodium-Ion Storage UPS is ideally suited for a variety of critical B2B applications:
- Data Centers: Providing reliable UPS backup power and enabling peak shaving to reduce energy costs and grid dependency.
- Communication Base Stations: Delivering uninterrupted power with exceptional adaptability to wide temperature ranges, from freezing winters to scorching summers.
- Industrial Backup Power: Ensuring continuous operation for precision manufacturing, semiconductor fabrication, and healthcare facilities where power quality is paramount.
- Microgrid and Solar-Storage Integration: Serving as the stable energy buffer in renewable energy systems, enhancing grid resilience and maximizing self-consumption.
Contact Us
For more information about the HIGHSTAR SODIUM 65.9kWh Air-Cooled Sodium-Ion Storage UPS or to discuss your specific energy storage requirements, please contact our team. HIGHSTAR SODIUM is ready to partner with you to build a safer, more sustainable energy future.
