Characterization of the Design and Performance of Commercialized Sodium-Ion Batteries

The escalating demand for energy storage solutions has spurred the commercialization of sodium-ion batteries (NIBs), prompting a paradigm shift from laboratory research to real-world applications. The success of commercial NIBs hinges on their ability to meet stringent performance metrics, ensuring competitiveness in the large-scale energy storage market. Manufacturing new cell chemistries is complex, and if the cells have design flaws and/or manufacturing defects it could hinder their performance and safety. We will present detailed findings of the NIB cell design, construction, and performance of commercialized 18650 format NIBs. The cell design and construction will be analyzed using 3D X-ray computed tomography and cell teardowns with materials analysis. In addition, the electrochemical performance of these cells will be investigated over a range of rates and temperatures. This study will provide insight into the quality and performance of some of the early to market commercialized NIBs and how it could affect their use in large scale energy storage.