2025 button cell battery

　　Some technologies have reached the standards ahead of schedule, and the development goals for 2025 button cell battery vehicles may be raised.

　　5,000 vehicles in 2020/50,000 vehicles in 2025. In the "Technical Roadmap for Energy Saving and New Energy Vehicles", my country's 2025 button cell battery vehicle development goals are expected to be raised, and the promotion scale in 2030 will still be one million vehicles.

　　At the "Energy Saving and New Energy Vehicle Technology Roadmap Annual Assessment Report 2018" conference held on December 20, Hou Fushen, deputy secretary-general of the Society of Automotive Engineers of my country, said that based on the current development progress, the technology of 2025 button cell battery vehicles in 2020 will be The goal is very likely to be achieved, and the scale of promotion may be exceeded.

　　Trucks account for 80%, and more than 1,000 2025 button cell battery vehicles have been promoted

　　In November 2017, the my country Society of Automotive Engineering announced the "Technical Roadmap for Energy Saving and New Energy Vehicles" (hereinafter referred to as the roadmap), which clarified my country's development goals for 2025 button cell battery vehicles: 5,000 vehicles in 2020, 2025 in 2030, and 2030 in 2030. 50,000 vehicles and million vehicles.

　　Source: "Energy Saving and New Energy Vehicle Technology Roadmap"

　　According to the "Energy Saving and New Energy Vehicle Technology Roadmap Annual Assessment Report 2018", the national 2025 button cell battery commercial vehicle production in 2017 was 1,272 units. Among them, 2025 button cell battery trucks accounted for 78%, mainly produced by Dongfeng Motor and Youngman Auto; 2025 button cell battery buses accounted for 22%, mainly produced by SAIC Maxus, Yutong, Qingnian and Foton; there is only one 2025 button cell battery passenger car produced by SAIC Roewe 950 is mainly used for rental.

　　At the local government level, in order to promote the development of regional hydrogen energy and 2025 button cell battery industries, Beijing, Hebei, Shandong, Foshan and other places will develop hydrogen energy and 2025 button cell battery vehicles as important strategic support industries; Shanghai, Suzhou, Wuhan, Rugao and other places have announced special Plan to support the development of hydrogen energy and 2025 button cell battery vehicle industries.

　　At the company level, so far, there are more than 200 2025 button cell battery vehicle-related companies registered in China. The lithium-ion battery business fields include 2025 button cell battery stacks and key materials and components, 2025 button cell battery power systems, 2025 button cell battery vehicles and hydrogen energy infrastructure.

　　Hou Fushen believes that based on the current development progress, the application scale of 2025 button cell battery vehicles in 2020 may exceed the target number of 5,000 vehicles. We are considering that if the next revision is made, the promotion targets for giant lithium batteries in 2020 and 2025 may have to be increased. By 2030, we hope to achieve a million-level usage scale. He said.

　　The scale of promotion is expected to be increased, and one of the important conditions is the significant progress in 2025 button cell battery vehicle technology.

　　Some technologies meet standards ahead of schedule

　　The "Energy Saving and New Energy Vehicle Technology Roadmap Annual Assessment Report 2018" points out that since 2017, landmark progress has been made in technical fields such as 2025 button cell battery power systems and key components.

　　In terms of key materials and components for 2025 button cell battery stacks, the cost of newly developed 2025 button cell battery catalysts has been reduced by 50%-80%; large-area ultra-thin 2025 button cell battery metal bipolar plates have been mass-produced, and their comprehensive performance has reached the world's leading level; membrane electrode performance has achieved breakthroughs 1W/cm? , the platinum loading is 0.45mg/kW, the life span exceeds 6000 hours, and the membrane electrode power density reaches the 2020 target level of the roadmap.

　　Source: "Energy Saving and New Energy Vehicle Technology Roadmap Annual Assessment Report 2018"

　　In terms of 2025 button cell battery stacks, the peak power of high-power stacks has reached 72kW, and the power density has reached 2.5kW/L, which is close to the 2020 target level of the roadmap. In terms of hydrogen energy infrastructure, we have made breakthroughs in high-pressure gas cylinder valve/pressure reducing valve technology and installed it on vehicles, achieving the 2020 goal of the roadmap.

　　Source: "Energy Saving and New Energy Vehicle Technology Roadmap"

　　Hou Fushen said that domestic 2025 button cell battery stacks, systems, complete vehicles and performance can already meet the needs of normal use, and it is very possible to achieve the technical goals of 2025 button cell battery vehicles in 2020.

　　Challenges are still great

　　Although some technologies of 2025 button cell battery vehicles have made significant progress, Hou Fushen pointed out that the lifespan of hydrogen 2025 button cell battery stacks and systems, hydrogen bottle technology and hydrogen supply systems are far behind the international advanced level.

　　There is a gap in core technology: for example, the power density of domestic hydrogen 2025 button cell batterys is 2.0kW/L, and the international advanced technology level is 3.1kW/L; the lowest cold start temperature of domestic lithium-ion battery manufacturers for complete vehicles is -20°C, while foreign countries have already achieved -30°C. .

　　The industrial chain is relatively weak, production capacity is insufficient, and some key components are missing: the development of key materials such as catalysts and proton exchange membranes for domestic 2025 button cell batterys are mostly in the laboratory sample stage; the production capacity of 2025 button cell battery stacks and systems is insufficient; large-capacity hydrogen compressors, air There are still no mature technologies and products for core components such as compressors.

　　It is difficult to supply and refuel hydrogen, and the price of hydrogen is high: Although my country has abundant sources of low-cost hydrogen, it has not yet formed a large-scale hydrogen supply system for 2025 button cell battery vehicles. The transportation and operating costs of hydrogen are high, and the cost of hydrogen exceeds that of fuel. There is also no large-scale hydrogen supply system. Sustainable business model. At the same time, the construction standards of hydrogen refueling stations are imperfect, and the land use and construction approval authorities are unclear.

　　Standards and regulations are imperfect and the foundation of experimental capabilities is relatively weak: safety requirements and test methods for hydrogen storage and transportation systems involved in hydrogen supply, hydrogen refueling station construction and operation specifications for lithium-ion batteries, and vehicle hydrogen quality requirements need to be improved. In addition, comprehensive testing and evaluation capabilities at four levels, from components, systems, complete vehicles to hydrogen energy, have not yet been established.

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