LI Xinrui①;KOSEKI Hiroshi②
With increasing application, lithium and lithium-ion batteries show hazards during usage, storage, disposal and waste. To evaluate the thermal stability of lithium and lithium-ion batteries, their electrolytes were assessed by Chemical Thermodynamic and Energy Release(CHETAH) and measured by a Differential Scanning Calorimeter (DSC), since they sometimes caused fires and accidents. Moreover, thermal reactivity of lithium, silver oxide and alkaline batteries were analyzed by using a modified closed pressure vessel test (MCPVT). As a result, lithium battery is more hazardous than the other batteries. The sensitiveness to mechanical stimuli, such as a fall hammer, of lithium battery was also much higher than other batteries. The explosive power, which was evaluated by a ballistic mortar, of lithium coin battery was higher than those of other batteries.