Experimental Analysis of Thermal Modes of Accumulator Batteries

This article reviews variants of energy storage devices, particularly batteries, and proposes an approach for experimental studies of temperature at characteristic points of the battery and electrolyte. The results of the temperature dependence at these points on the duration of both charge and discharge processes are presented. The change in battery temperature at the characteristic points of the housing at different loads of charge and discharge has been analyzed. It is emphasized that an increase in the current and temperature of the environment surrounding the battery leads to an increase in temperature at the measured points of the battery housing, which leads to a corresponding temperature increase inside the battery. The research presents the relationship between the battery operation mode (charge or discharge) and temperature variations. After 2 h of operation with a load current of 18 A, the temperatures of the electrolyte and the battery plates surpass the maximum permissible temperature level (50°C).