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Example:10.1021/acsami.1c06204 or Chem. Rev., 2007, 107, 2411-2502
EXPRESS: Chemical Characterization Using Laser-Induced Breakdown Spectroscopy of Products Released from Lithium-Ion Battery Cells at Thermal Runaway Conditions
Applied Spectroscopy  (IF2.388),  Pub Date : 2021-10-13, DOI: 10.1177/00037028211055213
Daniel Diaz, David W Hahn

Laser-induced breakdown spectroscopy (LIBS) was used to characterize the materials released by lithium-ion (Li-ion) cells at thermal runaway conditions. Commercial AAA-size, rechargeable, 3.7-V, 350-mAh, Li-ion battery cells were heated in a N2-atmosphere tubular chamber up to about 165 °C to induce thermal decomposition. Through measurements of the chamber internal temperature and LIBS emission intensities over time the onset temperature of thermal runaway (≈143 °C) and the duration of the cells outgassing (> 40 minutes) were determined. Relatively high intensity atomic emissions from C, H, F, Li, Na, and P were detected at different times during the heating experiments. The detection of analytes such as C and H was continuous over time. On the contrary, detection of F, Na, Li, and P was more irregular, indicating the presence of solid-phase analytes or analyte-bearing particles. A calibration scheme for estimation of the total mass/volume concentration of all carbon-based species sampled within the laser-induced plasma was developed.