Greek energy storage blade battery structure

Why did BYD create a blade battery?

Believing this an impractical path, BYD puts the spotlight back on safety and stability in presenting the Blade Battery. In pushing toward a safer electric vehicle battery design, BYD realized that it needed to package LiFePO4's inherent stability and safety advantages into a battery pack with energy capabilities comparable to lithium-ion.

How much energy does a BYD blade battery produce?

However, BYD's Blade Battery achieves a remarkable 166 Wh kg −1 and 448 Wh L −1. Moreover, the overall volumetric energy density of the battery surpasses 200 Wh L −1, reaching between 237 and 275 Wh L −1. The Blade Battery pack in the BYD Han achieves a GCTP of 0.85 and a VCTP of 0.62.

Do structural batteries outweigh energy storage components?

In a scenario where the structural components outweigh the energy storage components by a ratio of 9:1, despite η s = η d = 1, the rigid structural battery can only achieve a mere 10 % decline in platform weight.

How many miles can a blade battery supply?

The Blade Battery construction increases that number by 50 percent, so that 60 percent of the battery pack is now dedicated to energy storage. In other words, a battery pack of the same size can now supply 373 miles (600 km) of driving range instead of 249 miles (400 km).

How difficult is it to manufacture a blade battery?

For example, the Blade Battery has a challenging manufacturing process. With an electrode roll dimension larger than 500 mm, roll-to-roll alignment and lamination and quality control will be very difficult. Manufacturing inconsistencies in the cells could blunt many of the advantages of this CTP design.

Does a module-free blade battery increase volumetric energy density?

Even worse, this low volumetric energy density often requires car designers to make room for a larger pack. The module-free Blade Battery, however, takes advantage of its blade cells to increase the volumetric energy density by up to 50%, suggesting a potential VCTPR and GCTPR of 62.4% and 84.5%, respectively.