Rept Battero 320 Ah sodium-ion cell debuted at SNEC 2026 in Shanghai. The launch puts the company’s latest storage product in focus for utility-scale projects. It also targets long-duration energy storage and harsh climate deployments. As a result, the new cell could appeal to developers that need stable performance across wide temperature ranges.
Rept Battero 320 Ah sodium-ion cell targets long-duration storage
Rept Battero introduced the new sodium-ion cell alongside an 85 Ah high-power LFP cell for AI data center energy storage. However, the 320 Ah sodium-ion product serves a different role. It targets power-generation sites, grid-scale storage systems, and large commercial and industrial projects. In particular, it fits applications that need four hours or more of discharge duration.
The company designed the cell for long service life and broad operating conditions. Therefore, it aligns well with utility-scale storage assets that stay in service for decades. Rept Battero said the product offers a rated capacity of 320 Ah. In addition, it delivers more than 20,000 cycles and at least 97% round-trip efficiency. The company also said the cell can operate from -50 C to 60 C.
Rept Battero 320 Ah sodium-ion cell performance and service life
Performance figures stand out in the launch details. Rept Battero said the cell can discharge at temperatures as low as -50 C. Even then, it retains more than 87% of capacity. This feature supports storage projects in very cold environments. At the same time, the upper operating limit of 60 C supports use in hot regions.
Moreover, Rept Battero said the cell can last 25 to 30 years. That lifespan closely matches the expected operating window of many renewable energy and utility-scale storage projects. Because of that, project owners may see value in matching cell life with asset life. The company also presented the product as a fit for projects in northeastern and northwestern China. It also pointed to desert and coastal installations where temperatures can vary widely.
Rept Battero 320 Ah sodium-ion cell uses Wending architecture
The product uses Rept Battero’s Wending prismatic cell architecture. The company already applies that platform to LFP storage cells, including 314 Ah and 320 Ah formats. Now, it has adapted the same design approach to sodium-ion chemistry. As a result, the new cell keeps a format that works with mainstream energy storage system designs.
Rept Battero said the structure increases internal space utilization. It also shortens current paths and reduces internal resistance. Together, these design choices support efficient operation. Furthermore, they can help simplify integration into existing pack and container layouts. That compatibility matters for developers because it can reduce redesign work at the system level.
Rept Battero 320 Ah sodium-ion cell materials and safety
Rept Battero also described material-level improvements across the cathode, anode, and electrolyte. According to the company, engineers optimized cathode particles and used porous anode structures. They also applied electrolyte interface engineering. These steps aim to improve ion transport, cycle stability, and low-temperature performance. Consequently, the cell is positioned for demanding storage duty.
Safety formed another key part of the launch. Rept Battero said the 320 Ah sodium-ion cell passed overcharge and nail-penetration tests. The company reported no fire, no explosion, and no thermal runaway during those tests. In addition, the terminal design uses double insulation and double sealing. That approach helps reduce electrical safety risks in large-scale deployments.
Rept Battero 320 Ah sodium-ion cell market plan for 2027
Rept Battero said the main target market is large-scale energy storage. More specifically, it focuses on applications that need discharge durations of four hours or longer. The company positioned the sodium-ion cell as a complement to LFP technology. It highlighted low-temperature performance, long cycle life, and lower exposure to raw-material price swings as key advantages.
At present, the 320 Ah sodium-ion cell is in the A-sample validation stage. Meanwhile, reliability testing and customer sampling are under way. Rept Battero plans to start mass production and commercial deliveries in 2027. Initial deployments are expected in renewable energy bases in northwestern China. The company also expects installations in cold-climate projects in northeastern China. After certification, selected international markets could follow.
Overall, the launch shows how battery makers are broadening chemistry options for long-duration storage. Rept Battero has paired high capacity, wide-temperature operation, strong cycle life, and system compatibility in one product. Therefore, the Rept Battero 320 Ah sodium-ion cell could become a notable option for utility-scale and large C&I energy storage in 2027 and beyond.
Disclaimer:
The content presented on this page has not been manually verified by our team.
While we strive to ensure accuracy, we cannot guarantee the validity, completeness,
or timeliness of the information provided. Always consult with appropriate professionals
or sources before making any decisions based on this content.
The image is randomly selected and doesn’t necessarily represent the company or the news above.
