Only one year after BYD Han went public, its sales volume has exceeded 100,000, and monthly sales exceeded 10,000 for more than one month in a year. This is an important achievement of BYD's high-end strategy. With its excellent comprehensive strength, the flagship model Han has expanded its territory in the medium and large luxury sedan market firmly occupied by the BBA. BYD has now launched a standard endurance version of the luxury Han EV, NEDC has a range of 506km under comprehensive working conditions, and the subsidy price is 209,800 yuan. Delivery will start in September. The Han EV standard battery life 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 it also promotes the BYD brand value and brand image from the side.

How to make Han EV easily realize the NEDC comprehensive working condition endurance of over 600km? The blade battery is indispensable. The volume utilization rate of the power battery is lost in each process from upstream to downstream (materials, cells, modules, and PACK four levels). Among them, the volume utilization rate of the process from cells to PACK is very low, reducing this part of the volume loss very much. important.

In traditional battery packs, a certain number of cells are first formed into a battery module, and then several modules are put into the battery pack to form a battery. Thanks to the flat design of the blade battery, the BYD blade battery uses a modular design, and the cells directly form the battery pack, so the volume utilization rate has increased by more than 50%, and it can carry more power in the same volume. This means that the battery pack required for the same endurance needs is smaller, and the "win-win" of the range of electric vehicles and the space in the car is realized.

Professor Ouyang Minggao once said: "Now the entire blade battery is like a blade...stacked one by one, the rigidity and strength of the stack are very good, and it can also be used as a structural part." The blade battery is both an energy body and a Structural parts undertake multiple functions. As a structural part, the battery cell itself is very hard and strong when folded, just like a chopstick is easy to break, a chopstick does not break, 100 blade batteries are 100 beams. The single row of blade batteries will be directly laid on the bottom plate, and the two ends of the battery core are fixed on the end plate, and the supporting force of the battery core is provided by the frame at both ends. At the same time, a high-strength honeycomb aluminum plate is installed on the side spine of the blade battery to form a honeycomb-like aluminum sandwich stable structure. The blade battery pack has been tested, and it is ignorant after being crushed by a heavy truck weighing 46 tons.