التفاصيل البيبلوغرافية
| العنوان: |
Real-time measurement of lithium-ion batteries’ state-of-charge based on air-coupled ultrasound |
| المؤلفون: |
Jun-Jie Chang, Xue-Feng Zeng, Tao-Lei Wan |
| المصدر: |
AIP Advances, Vol 9, Iss 8, Pp 085116-085116-6 (2019) |
| بيانات النشر: |
AIP Publishing LLC, 2019. |
| سنة النشر: |
2019 |
| المجموعة: |
LCC:Physics |
| مصطلحات موضوعية: |
Physics, QC1-999 |
| الوصف: |
In order to overcome the drawbacks of the traditional method of measuring a lithium-ion battery’s state-of-charge by charging and discharging its voltage curve, a method based on air-coupled ultrasound is proposed, which slows aging of the battery. Analysis is conducted on the propagation characteristics of ultrasound in the battery using Biot’s fluid-saturated porous media model; the signal is monitored in real time by monitoring ultrasonic waves during charging, and fast-wave and slow-wave signals are obtained. Firstly, the fast-amplitude value of the time domain signal is analyzed, and the near linear relation between the amplitude and lithium-ion battery’s state-of-charge is established. Frequency domain analysis is then carried out to understand the relationship between the phase and phase velocity for different state-of-charge consumptions and spectra. The results from using an air-coupled ultrasonic detection method to obtain the fast-amplitude value of the battery’s time domain signal show that fast-amplitude has an approximately linear relationship with state-of-charge. This verifies the feasibility and accuracy of this method and provides a new theoretical foundation for the real-time monitoring of lithium-ion batteries’ state-of-charge. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2158-3226 |
| Relation: |
https://doaj.org/toc/2158-3226 |
| DOI: |
10.1063/1.5108873 |
| URL الوصول: |
https://doaj.org/article/6af997ba98c042b89a4b5bd0f725ea04 |
| رقم الانضمام: |
edsdoj.6af997ba98c042b89a4b5bd0f725ea04 |
| قاعدة البيانات: |
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