Photoacoustic Imaging of Lithium Metal Batteries

  title={Photoacoustic Imaging of Lithium Metal Batteries},
  author={Huihui Liu and Yibo Zhao and Jiasheng Zhou and Ping Li and Shou‐Hang Bo and Sung-Liang Chen},
  journal={ACS Applied Energy Materials},
We demonstrate that photoacoustic microscopy (PAM) can be a potential novel imaging tool to investigate the Li metal dendrite growth, a critical issue leading to short circuit and even explosion of Li metal batteries. Our results suggest several advantages of PAM imaging of Li metal batteries: high resolution (micrometers), 3D imaging capability, deep penetration in a separator, and high contrast from bulk Li metal. Further, PAM has potential for in situ real-time imaging of Li metal batteries. 

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