902030 lipo battery.What batteries are used in hydrogen fuel cell vehicles as an important technical route for new energy vehicles?

　　Huang Libin said that hydrogen fuel cell vehicles and pure electric vehicles using lithium batteries are important technical routes for new energy vehicles. From the perspective of technical characteristics and development trends, pure electric vehicles are more suitable for urban, short-distance, passenger vehicle and other fields, while hydrogen fuel cell vehicles are more suitable for long-distance, large-scale, commercial vehicle and other fields. From the current point of view, the industrialization process of hydrogen fuel cell vehicles is obviously later than that of pure electric vehicles. Huang Libin believes that there is still a gap between my country's hydrogen fuel cell vehicles and the international advanced level in terms of basic materials, key components, and system integration. The cost of complete vehicles is high, and the construction of hydrogen energy infrastructure is also relatively lagging behind. The development of hydrogen fuel cell vehicles is not only a technical issue, but also relies on the development of the overall hydrogen energy industry chain and the continuous optimization and improvement of related policies, standards, and regulations. To some extent, it may be more difficult than the promotion of electric vehicles. In the next step, the Ministry of Industry and Information Technology will work with relevant departments to carry out demonstration operations to solve the industrialization and commercialization problems of hydrogen fuel cell vehicles and vigorously promote the innovative development of my country's hydrogen energy and fuel cell vehicle industries. At the same time, the Ministry of Industry and Information Technology will further promote the high-quality and sustainable development of new energy vehicles through the following measures. First, adhere to the innovation-driven approach and improve a collaborative innovation system that is enterprise-centered, market-oriented, and combines industry, academia, and research. Give full play to the main role of enterprises, accelerate the pace of product upgrading, and enhance product market competitiveness. The second is to speed up the construction of charging facilities, optimize the layout of public charging piles, and provide more preferential measures for use on the basis of studying special license plates for new energy vehicles to improve user experience. The third is to improve support policies, implement the "Measures for the Parallel Management of Average Fuel Consumption of Passenger Vehicle Enterprises and New Energy Vehicle Points", establish a long-term mechanism for the market-oriented development of new energy vehicles, and guide local financial subsidies from encouraging purchases to supporting the construction of charging facilities. , subsidized charging service fees and other use link transitions. The fourth is to improve the system and mechanism, improve the new energy vehicle supervision information platform, establish and improve the safety inspection system, fire rescue system, safety accident investigation and handling mechanism, etc., to improve the safe operation level of new energy vehicles. It is expected that the production of new energy vehicles may exceed 1.5 million units this year. Huang Libin said that in recent years, my country has achieved remarkable results in the development of new energy vehicles. Its promotion scale leads the world, its technical level has improved significantly, and both complete vehicles and key components have made great progress. The construction of charging infrastructure is progressing smoothly, especially the implementation of the "Measures for the Parallel Management of Passenger Car Enterprise Average Fuel Consumption and New Energy Vehicle Points", marking the continuous improvement of the long-term mechanism for the market-oriented development of new energy vehicles in my country. Overall, my country has established the most complete new energy vehicle development support system in the world. At the same time, the market structure of new energy vehicles in my country is also gradually optimizing, and its proportion in passenger car sales has further increased. The personal consumption market is also rapidly emerging. In Huang Libin’s view, the adjustment to the new energy financial subsidy policy last month was based on the complete withdrawal of the subsidy policy after 2020, and based on factors such as the scale efficiency and cost of new energy vehicles, as well as the regulations on the withdrawal of the subsidy policy. Adjustments made with comprehensive consideration will help give play to the basic and guiding role of subsidy policies, promote the survival of the fittest in the industry, and prevent market ups and downs. Electric energy is a very important energy source in the 21st century. In the future, it will even become the most important energy source in the world. Today, cars and even many large trucks have been replaced by electric power. Although lithium batteries also have many shortcomings, the most commonly used batteries are still lithium batteries. Of course, if you want to use lithium batteries, you need to prepare relevant equipment, because lithium batteries cannot be soldered. Do you know why this is? ? In fact, this reason is relatively simple. The first is because the surface metal of lithium batteries is relatively inert. Its surface is generally nickel-plated. It is difficult to weld on the surface of this metal. In industrial production, welding on nickel is generally avoided as much as possible. If it is unavoidable, people will choose to use some flux to help weld, but even with the help of flux, the welding place is still very unstable. , if the welding is relatively small, the lithium battery can be barely accepted, but if the welding area is larger, it will not be connected at all. And if it has been welded and then taken off, and the welding is repeated several times, the entire battery will basically be scrapped, which is very troublesome. In addition, the relationship between temperature and lithium battery is very close. When the temperature reaches a certain height, it will explode, and the process of soldering is to melt a metal with a low melting point. On top of another metal with a slightly higher melting point, as long as it is a metal, its thermal conductivity is very strong. If the temperature causes the chemical elements in the battery to heat up during the welding process, the battery will easily explode, causing serious harm.

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