Thermal Modelling Characteristics of Sodium-Nickel Chloride Battery for Transient Energy Storage Systems

  • Hu, Y. (Speaker)
  • Schofield, N. (Contributor to Paper or Presentation)
  • Nan Zhao (Contributor to Paper or Presentation)
  • Roger Bull (Contributor to Paper or Presentation)
  • Roger Tilley (Contributor to Paper or Presentation)

Activity: Talk or presentation typesPoster presentation


Renewable energy resources, for example, wind and solar, are highly dynamic and intermittent compared to more traditional generation sources, which imposes increasing challenges to the electrical network operator in terms of effectively managing the resource to maximize energy transfer and maintaining system stability. Therefore, transient energy storage systems (TESSs), like batteries with fast charging/discharging capabilities, are suitable candidates to improve the availability and reliability of connected renewable systems. The Sodium-nickel Chloride (NaNiCl2) battery has good power and energy densities, and is a potential candidate for TESSs. The internal operating temperature of the NaNiCl2 battery is from 270℃ to 350℃ which is way above any external ambient temperature, thus the battery is not suspectable to local ambient temperature variations as is the case for other electrochemical storage technologies, for example, Lithium-ion (Li-ion). The molten liquid sodium (Na) requires thermal management systems, such as electric heaters and insulation to manage internal temperatures within the battery pack. This paper, a new model for the thermal analysis of a NaNiCl2 battery is proposed and validated via tests. The model includes cell thermoneutral potential considerations, an interesting feature that results in battery cooling during charging. The model is used to simulated the thermal performance of a NaNiCl2 based TESS system providing fast frequency support.
Period18 Oct 2019
Event title18th Wind Integration Workshop: International workshop on Large-Scale Integration of wind Power into Power Systems as well as on Transmission Networks for Offshore wind Power Plants
Event typeWorkshop
Conference number18
LocationDublin, IrelandShow on map
Degree of RecognitionInternational