超声技术在锂离子电池表征中的应用

Applications of ultrasound technique in characterization of lithium-ion batteries

锂离子电池由于其在能量密度、循环寿命、能量效率、安全性等方面的综合优势,成为了应用最广泛的电化学储能器件,然而其性能仍有进一步提升的必要。大量的先进表征技术应用在锂电池研究中,有力推动了锂离子电池基础理论的进步。超声作为一种无损表征手段,具有灵敏度高、成本低、使用方便、速度快等优点,在电池特性表征领域具有巨大的应用潜力。本文总结概述了现有超声检测技术在电池表征领域的应用,包括内部气体检测、电解液浸润测试、电池析锂检测、电池荷电状态测量、电池寿命预测等,对其发展前景进行了展望。

Lithium-ion batteries(LIBs)present increasing applications in electrochemical energy storage component due to their comprehensive advantages in energy density,cycle life,energy efficiency and safety,there is still a need for further improvement.A large number of advanced characterization technologies has done great contributions to the development of the basic theory in LIBs.Ultrasound technique,as an advanced means for nondestructive testing(NDT),is widely used with the merits of ultrahigh sensitivity,low cost,easy operation and real-time measurement,which has great application potentiality in the field of LIBs characterization.The current research and application situation of the ultrasound technique are summarized and then the prospect is also discussed.