EVE Energy’s first large-scale sodium-ion battery energy storage system (BESS) has officially entered commercial operation following successful grid integration at its Jingmen base. This move marks a key breakthrough in the company’s development of new energy storage technologies and supports global efforts toward green energy transformation.

The newly deployed system, entirely self-developed by EVE, uses NF155L sodium-ion cells based on an NFPP chemistry. These cells offer high safety, wide operating temperatures, high-rate capability, long cycle life, and reduced carbon emissions. With a lifespan exceeding 30,000 cycles, discharge capability above 1P, and operational range from -40°C to 60°C, the NF155L cell is suited for full-scenario power storage applications. Optimized chemistry also enables safe storage at 0% state of charge (SOC), improving safety during transport and assembly. Furthermore, the system cuts lifecycle carbon emissions by over 42% compared to lithium-ion solutions.

Key advantages of the system include:

• Inherent Safety + Dual Fire Protection:
  The cells produce minimal flammable gas under thermal runaway, reducing explosion risks. Package- and cabinet-level fire suppression offers comprehensive protection.

• Full-Chain Manufacturing + Flexible Deployment:
  All core components are designed and produced in-house. The system is compatible with existing lithium BESS manufacturing processes, enabling rapid scaling and adaptable configuration for varied scenarios.

The 180 kWh sodium-ion BESS represents a major step toward real-world application of sodium-ion technology. A project lead stated, “Sodium-ion batteries have inherent advantages in raw material cost and resource availability compared to lithium-ion, making them suitable for large-scale and distributed energy storage.”

This launch reflects EVE’s strategic expansion into diverse energy storage technologies alongside its lithium-ion offerings. The NF155L cell has already gained recognition from multiple energy storage customers, and the company is accelerating its industrial rollout.

Moving forward, EVE will continue to advance sodium-ion R&D and promote large-scale commercial adoption. Through collaboration with industry partners, the company aims to support global transition toward clean, low-carbon energy systems.