Abstract
The dispersion curves of the zero order Lamb-modes of a Lithium-ion battery at different state-of-charge levels were characterized in this work. The results show that the drop-off frequency of the symmetrical mode varies with the state of charge of the battery. In addition, the measurements were compared to
lossless one-dimensional quasi-isotropic layer dispersion curve
simulations with good agreement in the frequency spectrum.
The measurements were conducted after cycling the lithium ion battery to different state of charge levels, while during each measurement the frequency of the exciting transducer is varied in the range from 1 kHz to 20 kHz. The received signal is filtered and the dispersion curve is evaluated using the peak-to-peak difference between the signal envelope and the exciting signal. These experimental results are compared with simulations of the dispersion curves using a one-dimensional quasi-isotropic layer model of the investigated lithium ion battery. In this novel approach, a linear correlation between the drop-off frequency, at which the zero-order symmetric Lamb mode disappears, and
the state of charge of a lithium-ion battery is shown.
lossless one-dimensional quasi-isotropic layer dispersion curve
simulations with good agreement in the frequency spectrum.
The measurements were conducted after cycling the lithium ion battery to different state of charge levels, while during each measurement the frequency of the exciting transducer is varied in the range from 1 kHz to 20 kHz. The received signal is filtered and the dispersion curve is evaluated using the peak-to-peak difference between the signal envelope and the exciting signal. These experimental results are compared with simulations of the dispersion curves using a one-dimensional quasi-isotropic layer model of the investigated lithium ion battery. In this novel approach, a linear correlation between the drop-off frequency, at which the zero-order symmetric Lamb mode disappears, and
the state of charge of a lithium-ion battery is shown.
| Original language | English |
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| Title of host publication | 2022 IEEE International Ultrasonics Symposium (IUS) |
| Number of pages | 4 |
| ISBN (Electronic) | 978-1-6654-6657-8 |
| DOIs | |
| Publication status | Published - Dec 2022 |
| Event | 2022 IEEE International Ultrasonics Symposium: IEEE IUS 2022 - Venice, Italy Duration: 10 Oct 2022 → 13 Oct 2022 |
Conference
| Conference | 2022 IEEE International Ultrasonics Symposium |
|---|---|
| Abbreviated title | IEEE IUS 2022 |
| Country/Territory | Italy |
| City | Venice |
| Period | 10/10/22 → 13/10/22 |
