The million kilometer battery, a reality in China thanks to BYD

Autonomy is the key to the success of electric cars. The manufacturers know it, but the big problem is its high price. The new Mercedes EQS has already been confirmed with 770 kilometers on a single charge. Figures a far cry from what is already available in China, BYD’s million-kilometer Blade battery.

German and European manufacturers are launching into the electric car race. There are more and more, and in just a few years we will see a real barrage of novelties in parallel to the combustion range. Maximum range on a single charge is also on the rise, up to 770 kilometers in the new Mercedes EQS about to be released. However, China is the one that truly dominates in this field of batteries.

Little by little, Chinese electric car brands are being introduced in Europe. They arrive loaded with technology on the inside, with colorful and futuristic designs on the outside and with very sophisticated innards, especially batteries. Great efforts to win over European customers, but to no avail. And it is that the bells of those crash tests to which some Chinese cars were subjected that literally split into two halves still ring.

On the left, a conventional battery of modules. On the right, BYD’s Blade battery without modules

Lithium iron phosphate is the future of electric car batteries, with up to a million kilometers

European brands have been determined to manufacture their own batteries in the Old Continent with simpler chemicals, compared to the Chinese who already have advanced lithium iron phosphate batteries, the million kilometer battery. With this chemical combination, it is true that the energy density is lower and, therefore, the size is larger to achieve high autonomy, but in return it maintains 90% charging capacity with more than 2,500 charge cycles.

This is pointed out by the expert Peter Fintl, Director of Technology and Innovation at the Altran consultancy, pointing out that BYD can offer this autonomy thanks to a new technology called “Blade Battery”. Flint points out that those of the Chinese brand have changed the cell packaging format without the need for individual modules, so tighter packages are placed.

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The expert assures that this chemistry is also safer, not producing reactions and there are no “thermal leaks”, no fires. A plus of security, and money that affects the sale price, which also allows to reduce the weight of electric cars, since currently brands are forced to use more materials to properly protect the battery and achieve a completely hermetic housing. The expert assures that these batteries they will lose 10%approximately of its capacity when the vehicle accumulates 250,000 kilometers or a service life of between 10 and 15 years of use, so it can even exceed the life of many cars.

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