Recently, EVE Energy’s first large-capacity sodium-ion battery energy storage system was successfully connected to the grid and commissioned at its Jingmen base, marking its official entry into commercial operation. This achievement represents a critical breakthrough for EVE in the field of new energy storage technologies and adds new momentum to the development of the energy storage industry and the global transition to green energy.  

The newly deployed sodium-ion battery energy storage system was independently designed and developed by EVE Energy. At the cell level, it utilizes the NF155L sodium-ion battery. Leveraging the unique advantages of the NFPP-based system, it delivers high safety, wide operating temperature range, high-rate capability, long cycle life, and low carbon emissions.

With a cycle life exceeding 30,000 cycles, support for discharge rates above 1P, and stable operation within a wide temperature range of -40°C to 60°C, the system is well-suited to meet the full range of requirements for modern power energy storage applications. Moreover, thanks to optimizations in the battery chemistry, the NF155L offers enhanced safety performance and supports extended storage at 0% state of charge (SOC), providing sufficient safety assurance for cell and system storage, transportation, and assembly. Additionally, its extended lifespan and environmentally friendly composition result in significantly lower carbon emissions over its full life cycle—reduced by more than 42% compared to lithium-ion batteries.  

At the system level, the key advantages include:  

Intrinsic Safety + Dual Fire Protection  

Under extreme thermal runaway conditions, the production and proportion of flammable gases are significantly reduced, substantially lowering the risk of fire and explosion from the source. The system also incorporates dual-level fire protection at both the pack and cabinet levels, establishing a comprehensive safety protection system.  

End-to-End Manufacturing + Flexible Deployment  

The system benefits from in-house design and manufacturing across the entire chain—from cells to cabinets—with 100% self-developed and self-produced core components. It is compatible with existing mature manufacturing processes for lithium-based energy storage systems, enabling rapid mass production. It also supports flexible cabinet configuration, allowing precise adaptation to diverse application scenarios.  

“The successful grid connection of this 180 kWh sodium-ion battery energy storage system is a major step forward in moving sodium-ion battery technology from the laboratory to real-world application,” said the project manager. “Compared with lithium-ion batteries, sodium-ion batteries have inherent advantages in raw material cost and resource availability. They are expected to see widespread adoption in key applications such as large-scale energy storage and distributed energy storage.”  

The successful deployment of this sodium-ion battery energy storage system underscores EVE’s strategic commitment to diversifying its technology roadmap beyond lithium-ion batteries. It will further enrich the company’s portfolio of energy storage products. To date, EVE’s NF155L sodium-ion battery has gained recognition from multiple energy storage customers, and the company is actively advancing its industrial-scale production.  

Looking ahead, EVE will continue to deepen its R&D and iterative innovation in sodium-ion battery technology, accelerate the scale-up and commercial adoption process, and collaborate with partners across the industry chain to promote the global transition to a cleaner, low-carbon energy structure—contributing to the building of a sustainable energy future.