Experimental study demonstrates exothermic decomposition coupled to solid electrolyte interface breakdown in lithiated graphite anodes, highlighting critical thermal failure pathways.
A full series of variously lithiated graphite anodes material Li x C 6 (0 2 O strongly coupled to the degradation of the solid electrolyte interface (SEI). Complementary calorimetric measurements showed the strongly exothermic chemical reactions during the decomposition matching well to the collected diffraction data. Post mortem analysis applying scanning electron microscopy revealed various morphological features supplementing the treatment of battery anodes and highlighted the importance of the SEI layer during the cycling of the cell and its thermal degradation.
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Hölderle et al. (2024) studied this question.
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