Transactions of China Electrotechnical Society  2021, Vol. 36 Issue (22): 4666-4676    DOI: 10.19595/j.cnki.1000-6753.tces.210122
Current Issue| Next Issue| Archive| Adv Search |
Characterization of the State of Charge of Lithium-Ion Batteries Based on the Time-Domain Characteristics of Acoustic Waves
Zhang Chuang1, Sun Bo1,2, Jin Liang1,2, Liu Suzhen1,2, Yang Qingxin1,2
1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology Tianjin 300130 China;
2. Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province Hebei University of Technology Tianjin 300130 China

Download: PDF (7377 KB)   HTML (1 KB) 
Export: BibTeX | EndNote (RIS)      
Abstract  Many advanced detection technologies have been proven to be able to obtain the state of charge (SOC) of lithium-ion batteries, but the current detection methods fail to meet both the accuracy and efficiency requirements. The use of ultrasound to characterize SOC has been initially recognized. This method has high detection efficiency and small damage to the battery, but there is a problem that the single acoustic index and the dynamic characteristics of the battery material are not clear. Based on the analysis of the current research status of SOC acoustic characterization of lithium-ion batteries, this paper introduces the ringing count into the battery SOC evaluation, and clarifies the correlation between SOC and ringing count. Based on the Lemaitre equivalent strain principle, the corresponding relationship between the ringing count and the effective Young's modulus is deduced. An on-line detection method for lithium-ion battery SOC based on ultrasonic longitudinal waves is proposed. Combined with conventional acoustic indicators, the effectiveness of lithium-ion batteries in charge and discharge cycles is studied. The evolution law of Young's modulus. By comparing the conventional time-domain acoustic indicators with the ringing count characterization results, the feasibility of the ringing count to characterize the SOC is verified.
Key wordsTime domain characteristics of sound waves      state of charge      characterization      Young's modulus     
Received: 22 January 2021     
PACS: TM911  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Zhang Chuang
Sun Bo
Jin Liang
Liu Suzhen
Yang Qingxin
Cite this article:   
Zhang Chuang,Sun Bo,Jin Liang等. Characterization of the State of Charge of Lithium-Ion Batteries Based on the Time-Domain Characteristics of Acoustic Waves[J]. Transactions of China Electrotechnical Society, 2021, 36(22): 4666-4676.
URL:  
https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.210122     OR     https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I22/4666
Copyright © Transactions of China Electrotechnical Society
Supported by: Beijing Magtech