255 kWh Liquid-Cooled Sodium-Ion C&I Battery Energy Storage System
  • 255 kWh Liquid-Cooled Sodium-Ion C&I Battery Energy Storage System
  • 255 kWh Liquid-Cooled Sodium-Ion C&I Battery Energy Storage System

225 kWh Liquid-Cooled Sodium-Ion C&I Battery Energy Storage System

The 225 kWh Liquid-Cooled Sodium-Ion Battery Energy Storage System (BESS) is an all-in-one outdoor cabinet developed for modern C&I energy storage projects. It combines sodium-ion battery modules, liquid cooling, an intelligent BMS, fire protection and communication systems into one compact enclosure.

Designed for long-term operation in demanding environments, the system supports renewable energy integration, peak shaving, demand charge reduction, backup power, and microgrid applications.

Unlike conventional lithium battery systems, sodium-ion technology reduces dependence on lithium, nickel, and cobalt while providing excellent safety, strong low-temperature performance, and stable long-term operation.

Whether you are building a factory energy storage project, a solar + storage system, or an EV charging station, Bonnen Battery provides complete engineering support from battery design to system integration.

Free Custom Design


24/7 Engineer Support Services


Certification: Compliance with MSDS, UN38.3, CE, CB, IEC 62619, UL


Features of Bonnen Sodium-ion BESS 

  • Full Project Customization & Tailored Engineering: We don’t force rigid off-the-shelf specs on your project site. Bonnen provides fully customized battery modules, voltage ranges (500V–above 1,300 V), PCS matching, custom cabinet branding, and protocol integration (CANbus, Modbus TCP/RTU) to match your exact project requirements.

  • Advanced Liquid-Cooling Thermal Control: Keeps cell temperature variation under 3°C across the cabinet. Liquid cooling lowers internal auxiliary power draw by 30% compared to HVAC air-cooling while extending system life by over 20%.

  • Multi-Level Safety Protection: Combines cell monitoring, electrical protection, gas and smoke detection, coolant-leak detection, emergency shutdown, and automatic fire suppression. The layered safety architecture helps identify abnormal conditions early and isolate faults before they spread through the system.

  • Wide-Temperature Sodium Chemistry: Maintains over 85% usable capacity at sub-zero temperatures (-30°C) and operates safely up to 55°C without energy-draining heating units.

  • Higher Thermal Stability & Safety: Sodium-ion chemistry offers far higher thermal stability than LFP or NMC.

  • Outdoor Industrial Cabinet Design: Uses a weather-resistant enclosure with anti-corrosion coating, controlled internal temperature, front-access maintenance, and separated battery and electrical compartments. The compact cabinet is designed for factories, commercial buildings, charging stations, and other outdoor C&I locations.

  • Multi-Tier Smart BMS & EMS Integration: Features three-tier BMS architecture (Cell, Rack, System) with real-time SOC/SOH estimation, automated cell balancing, and cloud monitoring for predictive maintenance.

  • Modular and Scalable Architecture: Multiple 225 kWh cabinets can operate in parallel to create 450 kWh, 675 kWh, 900kWh, or larger energy storage systems. The modular design allows project capacity to expand without replacing the original cabinets or redesigning the entire system.

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