Cornex 165 Ah sodium-ion prismatic cell marks a new step for stationary energy storage. The Chinese battery maker has expanded its sodium-ion portfolio with new prismatic cell options for grid and commercial storage applications. Most notably, the company introduced a 165 Ah model for larger systems and a 58 Ah model for additional flexibility. As a result, Cornex now offers more sodium-ion choices for developers seeking safe, durable, and efficient battery solutions.
The headline product is the PN173-165A. Cornex designed this sodium-ion prismatic cell for stationary energy storage applications such as frequency regulation. Moreover, the company says the cell delivers strong energy efficiency and long service life. These features make it suitable for projects that value reliability over many years of operation.
Cornex 165 Ah sodium-ion prismatic cell specifications
Cornex equipped the PN173-165A with a sodium iron pyrophosphate cathode material. In addition, it uses polyanion-type NFPP hard carbon for the anode. This chemistry supports stable operation in stationary storage settings. The company also emphasized the cell’s certified status, which adds credibility for integrators and project developers.
The Cornex 165 Ah sodium-ion prismatic cell has received several important certifications. These include the GB Chinese national standard, UN38.3, UL, and IEC 62619. Therefore, the product meets key safety and transport requirements for battery deployment in energy storage projects.
- Cell name: PN173-165A
- Capacity: 165 Ah
- Weight: 4.5 kg
- Dimensions: 71.7 mm x 174.4 mm x 207.2 mm
- Nominal gravimetric energy density: 102 Wh/kg at 0.5P
- Nominal volumetric energy density: 182 Wh/L at 0.5P
- 1P energy efficiency: 94.5%
- Cycle life: more than 20,000 cycles
Cornex 165 Ah sodium-ion prismatic cell for frequency regulation
Cornex positions the new cell as an ideal option for frequency regulation. This use case demands fast response, repeat cycling, and dependable performance. Accordingly, a cycle life of more than 20,000 cycles stands out as a key selling point. The claimed 1P energy efficiency of 94.5% also supports strong system performance in daily operation.
Frequency regulation projects often require batteries to charge and discharge often. Therefore, long cycle life can improve project economics over time. At the same time, solid energy efficiency helps reduce losses during operation. Cornex appears to target these requirements directly with the PN173-165A.
Cornex 165 Ah sodium-ion prismatic cell expands product lineup
Beyond the 165 Ah model, Cornex also announced a 58 Ah sodium-ion cell for stationary energy storage. Together, these additions broaden the company’s sodium-ion offering. Consequently, system designers may gain more flexibility when configuring battery packs for different storage needs.
The launch also shows that Cornex continues to invest in Sodium-ion Battery development. While lithium-based chemistries remain widely used, sodium-ion technology is gaining attention in stationary storage. This interest comes from its suitability for long-life applications and its potential fit for large-scale energy systems. Cornex’s expanded lineup reinforces that trend.
What the Cornex 165 Ah sodium-ion prismatic cell means for stationary energy storage
The new Cornex cell adds another certified option to the growing stationary energy storage market. Its combination of 165 Ah capacity, 94.5% energy efficiency, and more than 20,000 cycles gives project developers clear performance markers. In addition, the compact prismatic format can support practical system integration.
Its physical profile also matters. At 4.5 kg, with dimensions of 71.7 mm by 174.4 mm by 207.2 mm, the cell offers a defined format for rack and cabinet design. Furthermore, the stated gravimetric energy density of 102 Wh/kg and volumetric energy density of 182 Wh/L provide useful benchmarks for engineers evaluating energy storage architectures.
Cornex’s latest release highlights how sodium-ion batteries are moving into more specific stationary applications. In particular, frequency regulation and other high-cycle services can benefit from long operational life. Because of that, the PN173-165A could attract interest from utilities, integrators, and commercial energy storage providers.
Overall, the Cornex 165 Ah sodium-ion prismatic cell strengthens the company’s position in stationary energy storage. The product combines certified safety standards, a clear application focus, and performance figures that suit frequent cycling. As sodium-ion battery adoption grows, launches like this one will likely play an important role in shaping the next wave of storage projects.
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