Trends in the Development of Battery Thermal Management Systems on Electric Vehicles

Recently, there has been an active growth in the number of electrified vehicles. At the end of 2021, the number of electric vehicles was 16.5 million, three times more than in 2018. To increase competitiveness, manufacturers of electric vehicles increase plants’ power and battery capacity. This leads to an increase in the release of heat into the cooling system. This article discusses the main directions for improving the temperature control systems of electrified vehicles. A literature review is carried out, problems that have not been studied before are noted, and possible ways to solve them are presented. The influence of the organization of the airflow in the air path of the cooling system on the aerodynamic resistance is considered. A solution for the operation of electric vehicles under conditions of extreme ambient temperatures for the battery, both positive and negative, is proposed. The use of an immersion thermal control system on vehicles is analyzed.