Measuring the Equivalent Series Resistance of Chemical Current Sources by the Current Interruption Method for a Given Time

Abstract

It is proposed to measure the equivalent series resistance of various chemical current sources by the method of periodic interruption of the charge current or of the discharge current for a given time period. The current interruption frequency and duration could be selected from a wide range of values. By changing the current interruption duration, it becomes possible to significantly vary conditions in measuring the equivalent series resistance. Thus, when the current is interrupted for 0.5 ms, the proposed method approaches the resistance measurement by the alternating current method with a frequency of 1000 Hz. With current interruption durations of 0.5 s or more, the method under consideration becomes equivalent to the direct current method. The proposed method allows measuring the resistance both once and periodically with a given repetition period. Based on the results obtained, dependences of the equivalent series resistance on the charge level of the chemical current source, its residual resource, temperature, and other parameters were plotted. The method obtains several advantages, is easy to implement, misses errors inherent in other methods of measuring resistance and makes it possible to measure the equivalent series resistance directly in the process of charging and discharging the chemical current source under testing

Please cite this article in English as:

Menshikov Ya.A. Measuring the equivalent series resistance of chemical current sources by the current interruption method for a given time. Herald of the Bauman Moscow State Technical University, Series Natural Sciences, 2022, no. 5 (104), pp. 105--119 (in Russ.). DOI: https://doi.org/10.18698/1812-3368-2022-5-105-119

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