What short plates exist in the development of electric vehicles

Last year, the author followed deputy prime minister Ma Kai several surveys, power battery production enterprises and battery materials production enterprises to study, and participated in the establishment of the National League of nations automotive power battery research institute, more than some understanding of automotive power batteries. It is found that the relationship between performance and cost is very different between power batteries based on chemical industry and automotive products based on mechanical industry. The law of automobile products is that the cost of poor performance is low, the cost of good performance is high, the product is divided into grades, and the purchasing power is high and low. Some people buy brands in the market and some people buy affordable goods. The power cell is different, but the performance of the product is low.

The reason, it seems, is not economic bulk. Because the initial economic scale of automotive power batteries is not large, it is only 20-4 ,000 kg/year, which is equivalent to the size of 1-2 ,000 pure electric cars installed each year. It is the test level in the automotive industry. The fundamental reason is that power batteries are based on the chemical industry, and materials account for a large proportion of the cost. Looking at various lithium-ion power battery manufacturers, the processes and materials used are similar. The difference lies in the high level of safety, consistency, high energy density, and the opposite of the level difference. The power battery is not about selling, nor is it about selling, but selling according to energy. As a result, a large foreign company has established a factory in China. It expects that the product performance will be better than the current domestic product and the price will be lower.

Last year, due to the attention of the leadership of the State Council, policies to promote the development of electric vehicles were issued together, which effectively promoted the development of electric vehicles in China. The output reached 80,000 vehicles, ranking second in the world, and this year it is expected to reach the world's first. In this excellent situation, the industry generally believes that the main problem that hinders the development of electric vehicles in China is charging facilities. But I think the same important and more far-reaching is the development of power cells. In this regard, four points were suggested:

Power Battery: The development of electric vehicle short board needs to pay attention to four aspects

First, to strengthen the research of new lithium-ion batteries, their energy density and safety must keep pace with the world's advanced levels. Because the chemical industry characteristics of lithium-ion batteries determine that the cost of advanced products will be lower, and if they fall behind, they will fail. Of course, safety is also absolutely important, and products that are not safe can not be used at cheap prices. The production enterprises of lithium-ion batteries in China are relatively dispersed, and the R&D capabilities of production enterprises are relatively weak, not as good as those of Japan and South Korea. It is therefore necessary to join forces to strengthen basic research. In this regard, the car industry and the battery industry last year a number of joint establishment of the League of Nations Automobile Power Battery Research Institute. Countries should also prioritize support for new battery development, including new lithium-ion batteries and next-generation power cells.

Second, we must attach importance to the development of the entire industrial chain. That is, while studying the formula of battery materials, we must take into account energy density and safety; Pay attention to the simultaneous development of battery raw materials, battery monomers, battery packs, and battery management technologies; We must also pay attention to the testing and production of batteries and raw materials. It is not the number of inventions and patents, nor the sample of the laboratory, but the product that is cheap and safe. In the development of the entire industrial chain, special attention should be paid to international cooperation. We should actively support batteries and raw material manufacturers to carry out international cooperation, learn international experience and enter the international cycle.

Third, the power battery is the short plate of the development of electric vehicle in our country. In the face of the surge in electric vehicle production and sales last year, electric vehicle manufacturers, battery manufacturers, and electric vehicle users must pay special attention to the safety and battery performance of these electric vehicles.

Fourth, change the decentralized situation of automobile power battery production as soon as possible. The state should help strengthen fuyou, electric vehicle manufacturers should focus on procurement, and local governments should abandon the practice of supporting local battery production everywhere.

The page contains the contents of the machine translation.