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Field study on the temperature uniformity of containerized batteries using a two-phase liquid cooling system under mismatched conditions.

Author(s) : LOU X., ZHANG Q., ZOU S., MENG F., YUE C., ZHOU H., WEN L., LONG G.

Type of article: IJR article

Summary

The conventional liquid cooling system carries the risk of dew condensation and air cooling has poor thermal management performance for battery energy storage systems. To address these issues, a novel two-phase liquid cooling system was developed for containerized battery energy storage systems and tested in the field under mismatched conditions. The thermal management performance and safety during the charging and discharging processes were analyzed by investigating the main influencing factors, including battery temperature and cooling system characteristics (battery temperature variation, temperature uniformity, supply liquid temperature, cold plate temperature distribution, and compressor status). The results showed that the novel system can maintain a maximum cell temperature difference of less than 3 °C at the rack level and less than 2 °C at the pack level, resulting in a 60% reduction compared to the traditional air cooling system. Relative to a supply liquid temperature of 15∼25 °C, a relatively high supply temperature of 20∼30 °C for two-phase liquid cooling can not only reduce the running time of the compressor but also enhance its start-stop consistency. Compared to other studies, this novel system is reliable and safe for containerized energy storage batteries, even in capacity mismatch and direct return pipeline conditions.

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Pages: 85-97

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Details

  • Original title: Field study on the temperature uniformity of containerized batteries using a two-phase liquid cooling system under mismatched conditions.
  • Record ID : 30033350
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 170
  • Publication date: 2025/02
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2024.10.023

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