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 bateryvoltage,internalbaterytemperatureandheatertemperaturetoobservethevoltagebehaviortobatery temperaturewhileheating.Asaresult,whenthetemperatureofthebateryreachedabout80oC,thesafetyfunction ofthebateryoperated,andthecurentwasbrokenautomaticaly.However,abateryfireocured,whichwascaused byinternalshortcircuitwhenthebaterytemperaturereachedabout140oC.Therefore,thisexperimentconfirmedthat onlythesafetyfunctionmountedonLiBswereunabletopreventbateryfire.Moreover,whenelectricenergyremains insideoftheLiBs,weconfirmedtheenergymustbereleasedbecausethereisariskofthebaterycatchingfireto occuragain,evenafterextinguishingi.t
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