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How does BYD do the same battery life as the blade battery and the ternary lithium battery?
Release time:
2021-08-30 10:40
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On the first anniversary of BYD Han's listing, its sales volume has already exceeded 100,000, and it has sold more than 10,000 monthly for many consecutive months in a year. This is an important result of BYD's high-end strategy. The flagship model Han, with its excellent comprehensive strength, has developed a growth trend in the medium and large luxury car market firmly occupied by BBA. Now BYD is pushing the standard endurance version of the luxury Han EV,NEDC with a range of 506km under comprehensive working conditions. The subsidized price is 209800 yuan, which will be delivered from September. The Han EV standard endurance version is particularly dazzling in the new energy vehicle sector, demonstrating the strength and confidence of China's new energy flagship sedan to continue to lead the market, and boosting the brand value and brand image of BYD from the side. How does the
blade battery make Han EV easily realize the endurance of NEDC under comprehensive working conditions exceeding 600km?
has no modular design, and the battery cells directly form the battery pack
from upstream to downstream (material, battery cell, module, PACK level 4). The volume utilization rate of the process from battery cell to PACK is very low, so it is very important to reduce this part of volume loss.
Traditional battery packs first form a battery module with a certain number of cells, and then put several modules into the battery pack to form a battery. Thanks to the flat design of the blade battery, BYD blade battery adopts a non-modular design, and the battery core directly forms the battery pack. The volume utilization rate of the blade battery pack has increased by more than 50%, and the "blade" battery pack can carry more power under the same volume.
This means that the required battery pack is smaller under the same endurance requirements, achieving a "win-win" of electric vehicle cruising range and interior space ". Improve the human-machine experience of drivers and passengers, and also reduce the wind resistance of the vehicle.
battery is both an energy body and a structural member
professor ouyang minggao once said: "now the whole blade battery is like a blade... One by one, the rigidity and strength of the stack are very good, and it can also be used as structural parts.
blade battery is not only an energy body, but also a structural part, which undertakes multiple functions. As a structural member, the battery core itself is very hard and has great strength when folded, just like a chopstick is easy to break and a chopstick cannot break. 100 blade batteries are 100 beams. The single row of blade cells will be directly laid on the bottom plate, the two ends of the cell are fixed on the end plate, and the supporting force for the cell is provided by the frame at both ends. At the same time, a high-strength plate is installed on the back of the blade battery side, so that the battery side can assume the supporting role and no structural parts need to be arranged.
BYD blade battery has its own strength to realize self-support, and at the same time, it depends on the integrated battery core strength to increase the structural strength of the whole battery pack. The batteries composed of 100 blade batteries are arranged together, and a high-strength honeycomb aluminum plate is added to the upper and lower sides to form a honeycomb aluminum sandwich stable structure. The
blade battery pack has been measured and has no obvious deformation after being crushed by a heavy truck weighing 46 tons. It is smokeless and has no fire. The vehicle can still run normally after reloading.
Han EV with blade battery has a battery capacity of 77kWh, a wind resistance coefficient as low as 0.233Cd, and a maximum endurance of 605km under NEDC comprehensive working conditions. While increasing the cruising range, it can also reduce the energy consumption of the vehicle. At the same time, after passing the "China's most stringent safety evaluation" China Insurance Auto Safety Index (C-IASI) with excellent results, Biadihan also passed the C- NCAP crash test with high scores in late July, reaching the "five-star safety" standard, becoming the first new energy car with "double-excellent safety certification. As a leader in new energy vehicles, BYD has made full use of its deep technology accumulation and precipitation in the battery field. After years of R & D and innovation, as well as continuous improvement of production and manufacturing strength, BYD has become the leading new energy brand in the world. BYD will not forget its first heart and use technological innovation to satisfy people's yearning for a better life.
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