PROCEDURE FOR CONDUCT OF EXPERIMENTAL RESEARCH ON THE DETERMINATION OF HEATING OF THE ELECTRIC CAR BATTERY MODULE

Abstract

Every year, manufacturers of electric vehicles try to improve the main indicators of their products, in particular by increasing the total capacity of the battery, providing fast charging, etc. At the same time, the number of cases of such electric vehicles catching fire, in particular electric cars, is gradually increasing, and the consequences of such fires force society to think and look for appropriate solutions to ensure the safety of citizens and storage places for electric vehicles. Just one fire in an electric car can cause significant damage, and the very algorithm of extinguishing such a fire requires the involvement of a significant amount of force and means and may last more than 12 hours until complete elimination. Following the conducted analysis and the latest scientific achievements, the purpose of the work is to develop a methodology for conducting experimental studies to determine the factors for terminating and preventing the occurrence of a thermochemical reaction in lithium-ion battery cells (LIB). To achieve the goal, experimental stands were proposed and theoretically substantiated for determining the parameters of LIB during the action of extraneous factors of influence, which can lead to an irreversible thermochemical reaction in the element. A mathematical apparatus is also defined, which will make it possible to substantiate and verify the results of experimental research. During the experimental studies, the internal temperature of LIB is planned to increase due to two factors, in particular, an external high-temperature source (flame) and excess direct current. When the specified temperature indicators are reached, the LIB will be cooled down using a carbon dioxide fire extinguisher. The obtained experimental values will be the basis for developing a mathematical model of heating a full-size battery cell of an electric vehicle.