The energy density of blade batteries in 2025 is greater than 180Wh/kg

by:CTECHi     2021-08-26
As early as June 4, in a factory exploration activity with the theme of 'Climbing the Peak'For example, in terms of energy density, the current energy density of the blade battery pack is 140Wh/kg. The blade battery will be further improved from the material itself and design at the cell level in the future, and its system energy density will also increase from 140Wh/kg to 170Wh/kg. kg strides forward. In terms of volume, in the blade battery patent, the length of the blade battery can be between 600-2000mm. Sun Huajun said, “In fact, there is a 1.3-meter method inside, which can be replaced seamlessly.” At the 2020 World New Energy Vehicle Conference on September 29, Lu Zhipei, deputy director of BYD Shenzhen Development Center, gave more details. Interpretation of the future plan of the blade battery. Picture: Lu Zhipei, deputy director of BYD Shenzhen Development Center, said that in terms of energy density, according to the plan, the energy density of the first generation of blade batteries this year has reached 140Wh/kg, and the volume energy density has reached 230Wh/L. It is expected to be available in 2025. The energy density can reach more than 180Wh/kg, and the volume energy density can reach 300Wh/L. Lu Zhipei said that the key technological innovations of blade batteries are mainly concentrated in the five aspects of material optimization, structural innovation, battery management, process methods, and vehicle integration. The number of battery system components for blade batteries is reduced by 40%, the volume utilization rate (VCTP) is increased by 50%, and the cost is reduced by 30%. At the same time, the key technological innovations of blade batteries include wide-format technology, high-speed lamination technology, ultra-thin aluminum shell manufacturing technology, high-efficiency battery system integration technology, battery system testing and evaluation technology, involving 367 patent layouts. About blade battery Blade battery is the most important product in the power lithium battery business section of Fudi Battery. In March 2020, BYD officially launched the lithium iron phosphate blade battery, announcing that its cruising range has reached the same level as a ternary lithium-ion battery. At the same time, BYD is also publishing the 'acupuncture test' of blade batteries on the Internet, successfully challenging the 'Mount Everest' of power lithium battery safety testing. The 'needle test' proved the safety of the blade battery, and the structural change is the advantage of the blade battery. Because the blade battery saves the module and most of the supporting structure, the battery is directly packaged, and the space utilization rate is greatly improved. According to the data provided by BYD, the remodeling of the battery pack has reduced the cost of blade batteries by 30% and increased the energy density per unit volume by 50% compared with ordinary lithium iron phosphate batteries, which is equivalent to the original 300,000 electric vehicle, and now the price can be reduced3 60,000 (calculated based on the battery cost accounting for 40% of the vehicle); it used to run 400 kilometers on full charge, but now it can run 600 kilometers. In terms of production, BYD is deciding to continue to expand the production line of Chongqing Fudi's blade battery. Previously, BYD had decided to expand its annual production from 6GWh to more than 13GWh at the end of this year. According to the latest news, Fudi Chongqing Plant will build 8 production lines by the end of this year to achieve an annual output target of more than 20GWh. In addition, according to BYD's previous plan, Fordi Battery's plants in Changsha and Guiyang will be officially put into production in 2021. By then (at the end of 2021), the total output of blade batteries will reach 75GWh, and the output will further climb to 100GWh by the end of 2022. In terms of customers, blade batteries are first supplied to BYD's new energy vehicles. The BYD Han model equipped with blade batteries was launched in July. According to data, 1,205 'Han' EVs were delivered in July, and 4,000 'Han' EVs were delivered in August. Sales far exceeded expectations. Blade batteries are expected to be extended to the new Qin EV, Qin ProEV and Song Plus models in the future. In terms of external supply, in 2020, the external supply of BYD power lithium batteries will start to accelerate. Domestic car companies such as Changan and Xiaokang have already been provided, and they have entered the BAIC New Energy announcement; overseas customers have been designated by Toyota and favored by Daimler, and are expected to supply Ford, Audi and other world-renowned car companies. On September 29, 2020, Wan Gang, vice chairman of the National Committee of the Chinese People's Political Consultative Conference, chairman of the my country Association for Science and Technology, and chairman of the World New Energy Vehicle Conference, awarded the 'Global New Energy Vehicle Innovation Technology' award for 'Highly Integrated Blade Power Lithium Battery Technology'.
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