2019 IEEE 10th International Workshop on Applied Measurements for Power Systems (AMPS) 2019
DOI: 10.1109/amps.2019.8897753
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Approach to Wide-Frequency Battery Impedance Measurements in Commercial Applications

Abstract: Electrochemical Impedance Spectroscopy (EIS) is a well-established diagnostic technique for the characterization and monitoring of electrochemical devices, such as batteries. As different electrochemical processes have very different dynamics, a complete characterization of batteries requires measuring their impedance over a very wide frequency range, from less than 1 mHz to more than 1 kHz. However, significant measurement challenges affect the extreme frequencies and may limit the practically achievable freq… Show more

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Cited by 5 publications
(2 citation statements)
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“…Since the frequency range of the multi-sine signal is limited to 100 Hz, a lower sampling rate could be adopted, still meeting the requirements of the Nyquist-Shannon sampling theorem. Potentially, even a carefully chosen sampling rate below the Nyquist rate could still work, because the signal frequency components are perfectly known (with no errors in the local time frame of the CompactRIO), so their aliased frequencies are known as well, and can be chosen to avoid different components overlapping each other [25]. However, a higher sampling rate will decrease the noise and will therefore lead to more accurate impedance estimates.…”
Section: Sampling Ratementioning
confidence: 99%
“…Since the frequency range of the multi-sine signal is limited to 100 Hz, a lower sampling rate could be adopted, still meeting the requirements of the Nyquist-Shannon sampling theorem. Potentially, even a carefully chosen sampling rate below the Nyquist rate could still work, because the signal frequency components are perfectly known (with no errors in the local time frame of the CompactRIO), so their aliased frequencies are known as well, and can be chosen to avoid different components overlapping each other [25]. However, a higher sampling rate will decrease the noise and will therefore lead to more accurate impedance estimates.…”
Section: Sampling Ratementioning
confidence: 99%
“…Electrochemical techniques have traditionally been used to study the rates of corrosion for different materials [5], the durability of coatings [3, p. 10], and the properties of fuel cells [6], but recent developments have found applications as a method of biosensing for lab-on-chip devices [7].…”
Section: List Of Figuresmentioning
confidence: 99%