Researchers at Germany’s RWTH Aachen University compared Tesla and BYD’s electric vehicle batteries. According to the study, BYD’s Blade batteries were more efficient than Tesla’s 4680 batteries. The study revealed that BYD stands out with its design that facilitates heat management.

BYD surpasses Tesla in battery efficiency

While Tesla’s batteries focus on high energy density and performance, BYD’s batteries stand out with their low-cost materials and volume efficiency. Tesla’s 4680 cells have a cylindrical design, while BYD uses a prismatic cell format.

In terms of chemical composition, Tesla uses NMC811, while BYD uses LFP (lithium iron phosphate). Although LFP technology is disadvantageous in terms of energy density, it provides advantages in cost, safety and heat management. Tesla’s cells offer higher energy density (241.01 Wh/kg and 643.3 Wh/l), but BYD’s design was found to be more efficient in terms of thermal management and cost.

It was also found that silicon dioxide was not used in the anodes of both batteries. This was considered surprising despite silicon’s potential to increase energy density. The results of the study revealed that BYD has reached a level where it can compete with Tesla, and even outperform it in some aspects.

BYD’s cost and safety advantages, in the face of Tesla’s superior energy density approach, indicate that the balances in the electric vehicle market are changing. So what do you think about this? Do you think BYD’s new generation cars will receive the expected attention? You can share your views with us in the comments section below.