METHODS OF EXPERIMENTAL RESEARCH BEHAVIOR OF LITHIUM-ION BATTERIES UNDER THE INFLUENCE OF OPEN FLAME

Abstract

The article presents the dynamics of the number of electric vehicles in different countries of the world, as well as forecasts of their development in the European Union. the hazards of using electric vehicles are identified, which are caused by the occurrence of an irreversible exothermic reaction, which often causes ignition and leads not only to fires but also to explosions of electric vehicles. The current state of scientific research in the field of topical issues related to fire safety and fire extinguishing of electric vehicles, fire safety of power lithium-ion batteries, hydrogen storage systems, etc. is analysed. the work uses experimental and theoretical research methods, using the following operations: synthesis, analysis, systematisation, generalisation, etc. The essence of the proposed methodology for experimental studies of electric vehicle power battery elements for open flame fire hazard is to determine the thermal parameters (ignition temperature, combustion temperature and heat flux) that describe the combustion processes of electric vehicle power lithium-ion batteries, as well as to study the influence of factors on these parameters. the proposed methodology experimentally substantiates the parameters of a model fire of class c, as well as the placement of prototypes of power batteries and their placement in the open flame. The application of the proposed methodology will allow to systematise and generalise the fire-hazardous parameters of the elements of electric vehicle power batteries for fire hazard, as well as to study the influence of factors on these parameters. this will create the basis for further development of safe conditions for the use of electric vehicles, as well as the development of new and effective means of extinguishing them.