Wang Chuanfu: BYD's second-generation blade battery will be released soon
Recently, Wang Chuanfu, chairman of BYD, revealed at the 2023 financial report investor communication meeting:
BYD is currently working on a second-generation blade battery system, which could be released in August 2024 at the earliest. In Wang Chuanfu's view, the new energy industry has entered the knockout round, and 2024-2026 will be a decisive battle in scale, cost and technology.
At present, there is not much information about BYD's second-generation blade battery, and it is known that this is the case
The energy density of the new generation battery system will reach 190Wh/kg, so that the range of pure electric vehicles can exceed 1000km, which is expected to rewrite the fate of lithium iron phosphate batteries again.
BYD's blade battery is not a new type of battery, it is actually based on lithium iron phosphate batteries. The reason why it is named the blade is because it adopts a completely new arrangement, the cells are like blades, reducing the module and reducing the weight, so that the same number of cells occupy a smaller volume and thinner thickness.
BYD's first-generation blade battery was launched in 2020, and the statistics of Tramway Exchange based on new car announcement data show that
At that time, BYD declared a new model equipped with a blade battery, and the energy density of the battery system was 140Wh/kg, which was much higher than that of similar products, and the cruising range had reached a level similar to that of ternary lithium batteries.
According to Wang Chuanfu, "the blade battery reflects BYD's determination to completely end the safety pain points of new energy vehicles, and is more capable of bringing the global power battery technology route back to the right path, and completely erasing the word 'spontaneous combustion' from the dictionary of new energy vehicles." ”
By August 2021, the energy density of the battery system of the new car equipped with blade battery declared by BYD has reached 150Wh/kg. Since then, the energy density of BYD's new car battery system has basically been between 140-150Wh/kg, and has not exceeded 150Wh/kg.
The upcoming second-generation blade battery, with a system energy density of 190Wh/kg, can be said to be a real significant upgrade.
Wang Chuanfu said that the new generation of blade batteries will have a smaller size and lighter weight in the battery pack with the same endurance, and the power consumption will be reduced per 100 kilometers. This means that the second-generation blade battery not only improves the energy density, but also optimizes the size, weight and power consumption of the battery pack, further improving the range and performance of electric vehicles.
Judging from the recently published patent information,
BYD has developed a new battery pack that arranges the blade battery cells longitudinally in the battery system, using a new type of battery cell connector with a higher degree of integration. At the same time, the busbar of the electrode tabs, various monitoring components and cooling system of the blade battery are optimized to improve the energy density of the whole package of the battery pack. At the same time, it also solves the risk of extrusion that may be caused by the single pole of the blade battery set in the convex position, and improves the consistency and safety of the battery.
In addition, there is information that
BYD's second-generation blade battery adopts a new electrolyte formulation, which can effectively reduce the internal resistance of the battery and improve the low-temperature discharge ability of the battery. The discharge capacity of the second-generation blade battery product at -30°C is 80%, which is 10% higher than the first-generation product and higher than that of ternary battery.
In general, BYD's second-generation blade battery is a new battery technology that has been optimized in terms of energy density, volume, weight, power consumption, etc., which is expected to bring greater breakthroughs to the development of BYD's new energy vehicles.
In addition to the second-generation blade battery, which has attracted much attention, Wang Chuanfu also revealed that in May this year, BYD will launch the fifth-generation DMI hybrid technology, which will reduce fuel consumption to 2.9 liters / 100 kilometers, which can allow BYD plug-in hybrid models to achieve a range of 2,000 kilometers when fully fueled and fully charged.