测控技术2025，Vol.44Issue(7)：1-10,10.DOI:10.19708/j.ckjs.2025.07.303
基于超声的退役锂离子电池SOH快速检测方法
Rapid Detection Method of SOH for Retired Lithium-Ion Batteries Based on Ultrasonic Waves
摘要
Abstract
The echelon utilization of retired lithium-ion batteries has considerable economic benefits,but the long detection time limits its large-scale application.In order to solve the detection problem of the state of health(SOH)for retired batteries,an ultrasonic measurement method is introduced,and a fast estimation meth-od of the SOH for retired batteries based on"voltage-ultrasonic difference"health indicators and Informer-GRU model is proposed.By using ultrasonic waves to penetrate the batteries,the changes of electrochemical sub-stances in the batteries can be detected,and the ultrasonic characteristics strongly related to the SOH of batter-ies are collected in a short voltage window,then the"voltage-ultrasonic difference"health indicators are con-structed.Based on this,the Informer-GRU model is constructed to describe the relationship mapping between health indicators and the SOH of batteries so as to accurately estimate the SOH for retired batteries.The actual test of soft-pack lithium-ion batteries is carried out in the laboratory environment.The results show that the ac-curate estimation of the SOH for batteries with an average absolute error of 0.016％and a root mean square er-ror of 0.021％can be achieved just by ultrasonic testing in the 40 mV voltage window of 3.64～3.68 V,which can improve the efficiency of echelon utilization detection.关键词
退役锂离子电池/健康状态估计/超声测试/数据驱动模型Key words
retired lithium-ion battery/SOH estimation/ultrasonic testing/data driven model分类
信息技术与安全科学引用本文复制引用
倪睿晨,杜宇航,张昊,胡聪,梁军,宋宇晨..基于超声的退役锂离子电池SOH快速检测方法[J].测控技术,2025,44(7):1-10,10.基金项目
广西自动检测技术与仪器重点实验室基金(YQ23206) （YQ23206）
黑龙江省自然科学基金优秀青年项目(YQ2023F006) （YQ2023F006）
