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Sensors 2025 – MDPI  03/2025

Non-Contact Laser Ultrasound Detection of Internal Gas Defects in Lithium-Ion Batteries

Authors:

Dongxia Tang, Chenguang Xu, Guidong Xu, Sen Cui and Sai Zhang

Contents:
  • Gas defects in Lithium-Ion Batteries reduce their capacity and increase their internal resistance by loss of active material.
  • This paper demonstrates the contact-free ultrasonic inspection of gas defects in pouch cells using XARION's Optical Microphone.
  • Results show that C-Scans generated by XARION match the resolution of contact-based scanning acoustic microscopy.
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