What type of battery cells does Tesla use?
2 Answers
Tesla uses 18650 battery cells, whose function is to provide strong current to the starter when starting the engine. Taking the 2021 Tesla model as an example, it belongs to the mid-to-large SUV category with the following dimensions: length 5037mm, width 2070mm, height 1684mm, wheelbase 2965mm, minimum ground clearance 137mm, and curb weight 2473kg. The 2021 Tesla model is equipped with a front permanent magnet dual-motor system, delivering a total power of 395kW and total torque of 755Nm, paired with a 1-speed fixed gear ratio transmission.
I've always been fascinated by Tesla's battery choices, which I think are quite smart. Tesla primarily uses cylindrical lithium-ion cells, starting with the early 18650 specification, such as in the Model S and Model X. Later, they upgraded to the 2170 type in the Model 3 and Model Y, which has higher energy density and improved range performance. Now, newer models like the Cybertruck have switched to Tesla's self-developed 4680 cells, which are larger, more space-efficient, and can optimize thermal management systems to reduce overheating risks. These cells enable faster and more stable charging, though manufacturing costs remain somewhat high, requiring continuous improvements in production processes. I understand they aim to balance performance and cost through these designs, driving the entire electric vehicle industry forward. This innovation not only extends the range of the cars but also reduces maintenance hassles, making it a significant advantage for Tesla.
