Online High-Resolution EIS of Lithium-Ion Batteries by Means of Compact and Low Power ASIC
A compact electronic circuit capable of performing Electrochemical Impedance Spectroscopy (EIS) on either single Lithium-ion cells or modules formed by the series of two cells is presented. The proposed device, named Double Cell Management Unit (DCMU), constitutes an important improvement to a recen...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Batteries |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2313-0105/9/5/239 |
| _version_ | 1797601119287902208 |
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| author | Andrea Ria Giuseppe Manfredini Francesco Gagliardi Michele Vitelli Paolo Bruschi Massimo Piotto |
| author_facet | Andrea Ria Giuseppe Manfredini Francesco Gagliardi Michele Vitelli Paolo Bruschi Massimo Piotto |
| author_sort | Andrea Ria |
| collection | DOAJ |
| description | A compact electronic circuit capable of performing Electrochemical Impedance Spectroscopy (EIS) on either single Lithium-ion cells or modules formed by the series of two cells is presented. The proposed device, named Double Cell Management Unit (DCMU), constitutes an important improvement to a recently proposed cell management unit, which combined EIS acquisition functions with a multichannel sensor interface compatible with thermistors, strain-gauges and moisture detectors. The proposed circuit maintains the versatility of the previous version and significantly extends the EIS frequency range, allowing vector impedance measurements from 0.1 Hz to about 15 kHz. The capability of handling both single Lithium-ion cells or series of two cells is obtained by adding a few external components to the previous version. This also allowed increasing the stimulation current to a maximum amplitude of 200 mA, resulting in improved resolution. Experiments consisting in EIS acquisition performed on batteries of different capacity at different temperatures and states of charge are described. Estimated impedance resolution (standard deviation) is 20 μΩ obtained at 1 kHz with a stimulation current of 100 mA amplitude. |
| first_indexed | 2024-03-11T03:56:56Z |
| format | Article |
| id | doaj.art-a5dbf2c7686d4897b68ad58585ca1d9b |
| institution | Directory Open Access Journal |
| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-03-11T03:56:56Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Batteries |
| spelling | doaj.art-a5dbf2c7686d4897b68ad58585ca1d9b2023-11-18T00:28:15ZengMDPI AGBatteries2313-01052023-04-019523910.3390/batteries9050239Online High-Resolution EIS of Lithium-Ion Batteries by Means of Compact and Low Power ASICAndrea Ria0Giuseppe Manfredini1Francesco Gagliardi2Michele Vitelli3Paolo Bruschi4Massimo Piotto5Department of Information Engineering, University of Pisa, 56122 Pisa, ItalyDepartment of Information Engineering, University of Pisa, 56122 Pisa, ItalyDepartment of Information Engineering, University of Pisa, 56122 Pisa, ItalySensichips srl, 04011 Aprilia, ItalyDepartment of Information Engineering, University of Pisa, 56122 Pisa, ItalyDepartment of Information Engineering, University of Pisa, 56122 Pisa, ItalyA compact electronic circuit capable of performing Electrochemical Impedance Spectroscopy (EIS) on either single Lithium-ion cells or modules formed by the series of two cells is presented. The proposed device, named Double Cell Management Unit (DCMU), constitutes an important improvement to a recently proposed cell management unit, which combined EIS acquisition functions with a multichannel sensor interface compatible with thermistors, strain-gauges and moisture detectors. The proposed circuit maintains the versatility of the previous version and significantly extends the EIS frequency range, allowing vector impedance measurements from 0.1 Hz to about 15 kHz. The capability of handling both single Lithium-ion cells or series of two cells is obtained by adding a few external components to the previous version. This also allowed increasing the stimulation current to a maximum amplitude of 200 mA, resulting in improved resolution. Experiments consisting in EIS acquisition performed on batteries of different capacity at different temperatures and states of charge are described. Estimated impedance resolution (standard deviation) is 20 μΩ obtained at 1 kHz with a stimulation current of 100 mA amplitude.https://www.mdpi.com/2313-0105/9/5/239lithium-ion batteriessystem on a chipcell management unitelectrochemical impedance spectroscopymulti-measurand acquisition system |
| spellingShingle | Andrea Ria Giuseppe Manfredini Francesco Gagliardi Michele Vitelli Paolo Bruschi Massimo Piotto Online High-Resolution EIS of Lithium-Ion Batteries by Means of Compact and Low Power ASIC Batteries lithium-ion batteries system on a chip cell management unit electrochemical impedance spectroscopy multi-measurand acquisition system |
| title | Online High-Resolution EIS of Lithium-Ion Batteries by Means of Compact and Low Power ASIC |
| title_full | Online High-Resolution EIS of Lithium-Ion Batteries by Means of Compact and Low Power ASIC |
| title_fullStr | Online High-Resolution EIS of Lithium-Ion Batteries by Means of Compact and Low Power ASIC |
| title_full_unstemmed | Online High-Resolution EIS of Lithium-Ion Batteries by Means of Compact and Low Power ASIC |
| title_short | Online High-Resolution EIS of Lithium-Ion Batteries by Means of Compact and Low Power ASIC |
| title_sort | online high resolution eis of lithium ion batteries by means of compact and low power asic |
| topic | lithium-ion batteries system on a chip cell management unit electrochemical impedance spectroscopy multi-measurand acquisition system |
| url | https://www.mdpi.com/2313-0105/9/5/239 |
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