Scientific paper ID 2802 : 2026/4

One of the main elements of electric vehicles is the battery. The high-voltage battery is the main energy source in the electric vehicle. It provides energy for the movement of the EPS and for the auxiliary electrical circuits. The energy performance of the battery is of key importance for the dynamic performance of the vehicle and its mileage. Its function is to provide the necessary electrical energy for the electric motor and other consumers in the electric vehicle. The report examines the types of batteries installed in Tesla electric vehicles, as well as their characteristics. The companies manufacturing battery cells that Tesla orders for its high-voltage batteries are indicated. The general appearance of the battery module, which is part of the high-voltage battery in Tesla electric vehicles, is shown. The individual battery cells used in the various Tesla models are indicated. Detailed information is given about the Cybertruck high-voltage battery, what elements are used in it and the specific connection of the current buses. The method of integrating the battery into the floor of the vehicle is shown. Attention has also been paid to the battery cooling system.

All Tesla models, from the 2006 Roadster to the 2026 Model Y, use lithium-ion batteries. The difference in batteries between Tesla models lies in the chemical composition of lithium, as well as in the physical size and number of cells d in each pack. To make the batteries, Tesla collaborates with various cell manufacturers, including Panasonic, LG Chem, CATL and BYD.

In modern electric vehicles, the most commonly used batteries are:

- LFP (lithium iron phosphate),

- NCA (nickel-cobalt-aluminum),

- NMC (nickel-manganese-cobalt).