Browse > Article
http://dx.doi.org/10.18770/KEPCO.2022.08.02.143

DTS-based Temperature Monitoring and Analysis of Battery Cell Deterioration Characteristics by Temperature Condition  

SoonJong, Kwon (KEPCO Research Institute, Korea Electric Power Corporation)
Soo-Yeon, Kim (KEPCO Research Institute, Korea Electric Power Corporation)
Jin, Hwang (KEPCO Research Institute, Korea Electric Power Corporation)
Sang-Kyun, Woo (KEPCO Research Institute, Korea Electric Power Corporation)
Bong-Suck, Kim (KEPCO Research Institute, Korea Electric Power Corporation)
Publication Information
KEPCO Journal on Electric Power and Energy / v.8, no.2, 2022 , pp. 143-149 More about this Journal
Abstract
As ESS safety issues increase recently, there is a need to more precisely monitor the temperature of the ESS. In this paper, DTS technology for temperature monitoring of ESS batteries is introduced and the temperature measurement principle is explained. The temperature of the battery module is measured using the DTS system, and the thermal deviation between battery cells inside the battery module is analyzed. In order to analyze how thermal imbalance affects the charging and discharging performance of the battery, an accelerated degradation test was conducted. Cycle life characteristics analysis, battery surface temperature change, and AC impedance characteristics were conducted to analyze how the performance of battery cells differs according to temperature conditions.
Keywords
Energy Storage System (ESS); Distributed Temperature Sensing(DTS); State of Health(SOH); State of Charge(SOC); Battery Deterioration Characteristics;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Abhisek Ukil, Hubert Braendle, Peter Krippner, "Distributed Temperature Sensing: Review of Technology and Applications", IEEE Sensors Journal, Volume 12, 885-892, May 2012 https://doi.org/10.1109/JSEN.2011.2162060   DOI
2 Byoung-Yong Chang, Su-Moon Park, "Electrochemical Impedance Spectroscopy", Annual Review of Analytical Chemistry 2010.3:207-229, https://doi.org/10.1146/annurev.anchem.012809.102211   DOI