Degradation reactions, their reaction enthalpy (blue = endothermic, red = exothermic) and the temperature range at which they are observed in differential scanning calorimetry, accelerated rate calorimetry or electrochemical measurements. Products that are also reactants are highlighted in bold^a.

Name	Abbr.	Equation	ΔrH̲/kJ mol−1	T Start/°C
Conductive salt decomposition29	CSD	LiPF6 ⇌ LiF + PF5		25*/60–80
PF5 decomposition29	PFD	PF5 + H2O ⇌ 2HF + POF3		25*/60–80
POF3 decomposition29	POFD	POF3 + H2O → HF + HPO2F2		25*/60–80
Organic SEI production30,31	OSP	2LiC6 + 2C3H4O3 (EC) → (CH2OCO2Li)2 + C2H4 + 2C6		25**/80–120
Inorganic SEI production30,31	ISP	2LiC6 + C3H4O3 (EC) → Li2CO3 + C2H4 + 2C6		25**/80–120
LiOH production20	LSP	LiC6 + H2O → LiOH + 0.5H2 + C6		25**/80–120
Organic SEI decomposition5,31	OSD	(CH2OCO2Li)2 → Li2CO3 + C2H4 + CO2 + 0.5O2		60–120
Inorganic SEI decomposition32	ISD	Li2CO3 + 2HF → 2LiF + H2O + CO2		25
LiOH decomposition33	LSD	LiC6 + LiOH → Li2O + 0.5H2 + C6		100–120
Cathode decomposition34	CD			150–220
EMC combustion34	EMCD	3.5O2 + C4H8O3 (EMC) → 4CO2 + 4H2O		180–350
EC combustion34	ECD	2.5O2 + C3H4O3 (EC) → 3CO2 + 2H2O		180–350

^a* slow process during cell formation; ** process considered indirectly.