Browsing by Author "Dunn, Christopher"
Now showing items 1-3 of 3
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Achieving reliable and repeatable electrochemical impedance spectroscopy of rechargeable batteries at extra-low frequencies
(Institute of Electrical and Electronics Engineers, 2022)There is a need for techniques for efficient and accurate measurement of the impedance of rechargeable batteries at extra-low frequencies (ELFs, of the order of microhertz), as these reflect real usage and cycling patterns, ... -
Distinguishability of battery equivalent-circuit models containing CPEs: Updating the work of Berthier, Diard, & Michel
(Elsevier, 2022)This manuscript revisits the assertion of Berthier et al. that competing fractional-element equivalent-circuit models of battery cells are indistinguishable in the presence of noise. Starting with Westerhoff’s general ... -
A multitone current sink for measuring impedance of in-use batteries
(2019)Measurement of impedance of rechargeable batteries at very low frequencies reveals valuable information relating to battery behaviour and condition. Until now, successful measurements have been made in the laboratory with ...
