Fig. 1: The structural evolution of lithiated graphite during the heating process.
From: In situ observation of thermal-driven degradation and safety concerns of lithiated graphite anode
a The scheme of the in situ experimental setup. b The waterfall plots of lithiated graphite anode during heating from 25 to 280 °C with 2 °C/min. The 2θ value has been converted into d-spacing following Bragg’s rule for a better comparison to the results using different X-ray sources. c The polyethylene oxide (PEO) oligomer lattice expansion between 25 and 40 °C, with a coefficient of thermal expansion (CTE) of 167 × 10−6 °C, then PEO degradation during 40–60 °C.
