TY - GEN
T1 - Experimental Analysis of Measurement Time Reduction in Electrochemical Impedance Spectroscopy using the Distribution of Relaxation Times
AU - Jung, Min Jae
AU - Lee, Young Nam
AU - Song, Juhyun
AU - Lee, Sang Gug
AU - Choi, Kyung Sik
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Electrochemical impedance spectroscopy (EIS) is getting attention as a promising diagnostic technique for lithium-ion batteries. In order to meet the demand for the inspection of numerous cells in the industry, it is necessary to shorten the time of EIS while maintaining essential information. Therefore, this paper proposes a novel strategy to reduce the measurement frequency points aiming for a faster EIS. Based on the distribution of relaxation times (DRT), an emerging interpretation method of EIS results, the preservation of information is evaluated. Experimental results confirm the capability of finding the minimum points per decade value for the EIS without causing a significant error in the time constants of peaks in the DRT. To the authors' knowledge, this is the first approach to adopt the DRT for optimizing the experimental design of EIS.
AB - Electrochemical impedance spectroscopy (EIS) is getting attention as a promising diagnostic technique for lithium-ion batteries. In order to meet the demand for the inspection of numerous cells in the industry, it is necessary to shorten the time of EIS while maintaining essential information. Therefore, this paper proposes a novel strategy to reduce the measurement frequency points aiming for a faster EIS. Based on the distribution of relaxation times (DRT), an emerging interpretation method of EIS results, the preservation of information is evaluated. Experimental results confirm the capability of finding the minimum points per decade value for the EIS without causing a significant error in the time constants of peaks in the DRT. To the authors' knowledge, this is the first approach to adopt the DRT for optimizing the experimental design of EIS.
KW - Battery management system
KW - Distribution of relaxation times
KW - Electrochemical impedance spectroscopy
KW - Lithium-ion battery
UR - https://www.scopus.com/pages/publications/85182951542
U2 - 10.1109/ECCE53617.2023.10362663
DO - 10.1109/ECCE53617.2023.10362663
M3 - Conference contribution
AN - SCOPUS:85182951542
T3 - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
SP - 6312
EP - 6316
BT - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
Y2 - 29 October 2023 through 2 November 2023
ER -
