The first launch with BYD Han blade batteries has become an upstart in the industry

by:CTECHi     2021-09-05
As the core component of electric vehicles, power lithium-ion batteries are one of the most concerned issues for consumers. In the field of power lithium-ion batteries, there are currently two major technical routes of ternary lithium and lithium iron phosphate, of which ternary lithium-ion batteries are the most widely used. A few days ago, BYD announced the launch of a 'blade battery' based on lithium iron phosphate technology, and will be the first to be equipped with the BYD Han, a new medium and large new energy sedan that is scheduled to be launched in the middle of this year. It is reported that Tesla will also be equipped with cobalt-free lithium iron phosphate batteries in model3 models. At the moment when ternary lithium-ion batteries are popular, lithium iron phosphate batteries are gradually gaining attention. Ternary lithium-ion batteries have become the choice of many car companies due to their high energy density. However, high energy density also brings instability factors, causing consumers' concerns. The technical route of lithium iron phosphate battery is known for its safer and more reliable characteristics, and achieves a relatively balanced state between energy density, charging efficiency and safety factor. What is a 'blade battery'? It is reported that this is a battery design process developed by BYD for large batteries with a length greater than 0.6m, which are arranged in an array and inserted into battery packs like 'bladeAccording to BYD, the safety of blade batteries based on lithium iron phosphate technology has been greatly improved, and its out-of-control temperature is higher than that of ternary lithium-ion batteries. At the same time, the battery pack has higher overall rigidity, resistance to deformation, extrusion and puncture. Stronger, the probability of short circuit inside the battery pack is close to zero. In addition, the blade battery has a service life of more than 1 million kilometers, and its practicability has also been greatly improved. In terms of application, the BYD blade battery will be equipped with BYD Han first. This medium and large pure electric car is scheduled to be launched in mid-2020. Related parameters show that, as the first product equipped with a blade battery, BYD Han NEDC has a mileage of more than 600 kilometers.
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