Mar 7, 2025 12:33 AM
Engineers took apart batteries from Tesla and China’s leading EV manufacturer to see what’s inside
https://www.eurekalert.org/news-releases/1075260
INTRO: Two main manufacturers dominate the EV (electric vehicle) market: Tesla, which is most popular in Europe and North America, and BYD, which leads the Chinese EV market. However, both manufacturers have released limited data about their batteries, so the mechanical structure and characteristics of these battery cells has remained mysterious. To compare the batteries used by each manufacturer and better understand how EV batteries function overall, a team of researchers took one of each apart.
The results [urlhttp://dx.doi.org/10.1016/j.xcrp.2025.102453]publish on March 6 in the Cell Press journal Cell Reports Physical Science[/url] and show that Tesla’s batteries prioritize high-energy density and performance, whereas BYD’s batteries prioritize volume efficiency and lower-cost materials. Overall, the study revealed that BYD’s battery is more efficient because it allows easier thermal management.
“There is very limited in-depth data and analysis available on state-of-the-art batteries for automotive applications,” said Jonas Gorsch, a researcher at Production Engineering of E-Mobility Components at RWTH Aachen University in Germany and lead author of the study... (MORE - details)
https://www.eurekalert.org/news-releases/1075260
INTRO: Two main manufacturers dominate the EV (electric vehicle) market: Tesla, which is most popular in Europe and North America, and BYD, which leads the Chinese EV market. However, both manufacturers have released limited data about their batteries, so the mechanical structure and characteristics of these battery cells has remained mysterious. To compare the batteries used by each manufacturer and better understand how EV batteries function overall, a team of researchers took one of each apart.
The results [urlhttp://dx.doi.org/10.1016/j.xcrp.2025.102453]publish on March 6 in the Cell Press journal Cell Reports Physical Science[/url] and show that Tesla’s batteries prioritize high-energy density and performance, whereas BYD’s batteries prioritize volume efficiency and lower-cost materials. Overall, the study revealed that BYD’s battery is more efficient because it allows easier thermal management.
“There is very limited in-depth data and analysis available on state-of-the-art batteries for automotive applications,” said Jonas Gorsch, a researcher at Production Engineering of E-Mobility Components at RWTH Aachen University in Germany and lead author of the study... (MORE - details)