Recently, BYD brand 7009BEV 1 pure electric vehicle produced by BYD was recorded in the latest batch of new energy vehicle promotion catalogue released by the Ministry of Industry and Information Technology. Confirmed by BYD, this car is the first BYD Korean EV pure electric vehicle equipped with BYD "Blade Battery". The arrival of BYD Han has also made more consumers see the hope of domestic new energy car companies "overtaking in corners"!
How much technology does "blade battery" have?
As we all know, battery, motor and electronic control technology are as important as the "three big pieces" of fuel vehicles for new energy vehicles. Among them, the power battery, as the core of the pure tram, is more important. At present, lithium ferrous phosphate and ternary lithium batteries meet the requirements of pure trams.
BYD, which started with batteries, as a representative enterprise of new energy vehicles in China, has always adhered to the lithium ferrous phosphate route in battery technology, and its technology is very mature.
However, compared with ternary lithium batteries, lithium iron phosphate batteries are not dominant in energy density, and their cruising range is correspondingly low. Therefore, with the change of new energy subsidy policy in the past two years, more car companies choose to use ternary lithium batteries. Although BYD also began to develop ternary lithium batteries from 20 17, it never gave up the research and development of lithium iron phosphate batteries.
The upcoming Korean EV is BYD's first model equipped with "blade battery", which is the core weapon of Korean EV.
Although lithium iron phosphate battery has low energy density, it has higher safety, longer cycle life and lower cost. As long as the problem of cruising range is solved, the application prospect is infinite. BYD Han EV's "blade battery" seems to have solved this problem.
Let's take a look at the data of BYD Korean EV published in the catalogue of the Ministry of Industry and Information Technology. One of the models has a cruising range of 605 kilometers and a fuel consumption of 14.2kWh per 100 kilometers. Tesla model? What is the situation? At present, the domestic standard endurance version has a cruising range of 445 kilometers. Even compared with the long battery life version, BYD Korean EV is competitive.
How does BYD's Blade Battery Change the battery life of lithium iron phosphate battery?
The innovation of "blade battery" lies in flattening the battery core based on the square aluminum shell battery, which reduces the use of cross beams and longitudinal beams in the battery shell, so that more single batteries can be arranged in the battery pack. This operation can improve the space utilization rate of the battery pack from 50% to over 60%. BYD's patent shows that the length of the company's blade battery can reach 2500mm, which is more than 10 times that of the traditional ordinary lithium iron phosphate battery, greatly improving the efficiency of battery grouping. The utilization rate of battery pack is increased by about 10%, the specific energy density of volume is greatly increased by 10% to 20%, and the cost of aluminum shell material is reduced by 20% to 30%. It has the characteristics of high safety, long service life and fast heat dissipation.
Simply put, the so-called "blade battery" means that the length of BYD's research and development is greater than? 0.6? m？ Large batteries are arranged in an array and inserted into the battery pack like "blades".
It is said that the cost of BYD's "blade battery" is 20% lower than that of ternary lithium battery, and the energy density can reach 140Wh/kg. Therefore, in terms of battery life and energy density, it is not worse than the ternary lithium battery used by Tesla, so BYD is still very powerful in technology.
BYD Han EV is very avant-garde
In addition to the long battery life, judging from the previously published information, the entire exterior interior design of BYD Han EV is also very interesting, and the sense of science and technology is very in line with the aesthetics of young people.
BYD Korea EV is positioned as a medium-sized and large-sized car, which may be listed around June this year. As a four-door coupe, BYD Han adopted the design concept of "round front and back". The rounder the front section, the faster the airflow will hit the car body, while the more square the rear section, the faster the airflow will leave the car body when it flows through the rear section, thus obtaining a lower drag coefficient.
Pure electric Korean EV model vs Shenlong? The facial design language was slightly adjusted and the closed net was replaced. The headlight group becomes sharp and slender and closely connected with the middle net, and the lines on the front enclosure are also simplified. The whole vehicle design is very avant-garde science fiction.
Bianxiao language
BYD Korea EV can be said to be both practical and well-known. Lithium ferrous phosphate "blade battery" not only solves the problem of energy density, but also has advantages in cost, service life and stability. It is said that after Tesla is made in China, it will bring great pressure to domestic new energy car companies. With the arrival of BYD Korea EV, it can be seen that domestic new energy vehicle companies also have technical strength. How to treat BYD Korean EV?
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.