Analisis Manajemen Thermal Baterai LiFePO4 Dengan Pendingin Bubble Generator Berdasarkan Variasi Kecepatan Motor Listrik

Abstract

Thermal runaway is a phenomenon where when the temperature in a lithium-ion battery reaches a critical value, it increases the temperature which in turn causes a further acceleration of the exothermal reaction rate. To anticipate potentially dangerous failures in the battery, the Battery Management System is a system that is often used to avoid damage that may occur to the battery. Tests were conducted with medium and maximum wheel rotation speeds to determine the maximum temperature after cooling. Testing with cooling water is done twice using an electric motor at medium rotation and maximum rotation by testing using a bubble generator. The results of thermal testing on LiFePO4 batteries with microbubble speed variations get the effect of temperature values at medium speeds the average temperature value on the battery is 13.54º to 23.48º Celsius and the maximum temperature value of the battery is 19.5º Celsius to 30.25º Celsius. While at maximum speed testing the average temperature value on the battery is 16.62º Celsius to 24.94º and the maximum value is 19.5º to 28.25º Celsius. And the calculation of thermal resistance with speed variations get results at medium speed with a value of 1.015º Celsius - 1.07º Celsius and maximum speed with a value of 1.01º Celsius - 1.02º Celsius