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优化和应用电磁超声波转换器用于电池非破坏性测试

Xuhang Zhan¹, Zhangwan Li¹, Hongchao Chen¹

¹Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

Sensors (Basel, Switzerland)

|October 16, 2025

概括

电磁声传感器 (EMAT) 技术提供了一种非接触式方法来评估离子电池 (LIB) 的健康状况. 优化的EMAT可以检测退役LIB的性能下降,有助于电池分类.

科学领域:

材料科学与工程材料科学与工程
电气工程电气工程
非破坏性测试不破坏性测试

背景情况:

监测离子电池 (LIB) 的安全和健康至关重要,但具有挑战性.
传统的超声波测试方法需要合器,这限制了它们在电池评估中的应用.
非破坏性评估 (NDE) 技术对于LIBs可靠的内部状况评估是必要的.

研究的目的:

应用电磁声传感器 (EMAT) 技术进行LIBs的非破坏性测试.
为增强超声波生成和接收设计和优化一个EMAT.
通过使用开发的EMAT系统来评估退休LIB的业绩.

主要方法:

使用哈尔巴赫磁铁阵列和蝶线圈的EMAT的独立设计.
优化EMAT设计以最大限度地提高接收信号的幅度.
优化EMAT的应用用于退役的270 Ah LIBs的非接触超声波评估.

主要成果:

优化EMAT设计的结果是,接收的信号幅度增加了四倍.
容量低于240Ah的退役LIB显示信号幅度比容量更高的电池低40%以上.
通过EMAT系统,可以进行无接触,无拆卸的性能评估.

结论:

优化的EMAT技术为评估LIB内部条件提供了灵敏和可靠的方法.
这种非接触式方法对于快速绩效评估和退役LIB单位的分类是有效的.
EMAT为LIB安全监测和终生管理提供了一个有前途的解决方案.

关键词:

哈尔巴赫阵列是一组.设计和优化设计和优化电磁声学传感器 (EMAT) 是一个电磁声学传感器.这是离子电池 (LIB).非破坏性的非破坏性.

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