What are the shortcomings in the development of electric vehicles

Last year, I followed vice premier ma kai for several times to visit and study power battery manufacturers and battery material manufacturers. I also participated in the establishment of guolian automobile power battery research institute, which made me know more about automobile power battery. It is found that the relationship between performance and cost of power batteries based on chemical industry is quite different from that of automobile products based on mechanical industry. The law of automobile product is, the cost with poor performance is low, the cost with good performance is high, the product is graded, buying power has discretion, somebody buys a brand on the market, somebody buys material benefit, each is in place. But the power battery is different, the performance good product actually the cost is low.

The reason, it seems, is not economic battering. Because the initial economic scale of automobile power battery is not large, it is only 200,000 to 400,000 KWH/year, equivalent to the annual loading of 10,000 to 20,000 pure electric cars, which is the pilot level in the automobile industry. The fundamental reason is that power batteries are based on the chemical industry, and materials account for a large proportion of the cost. See each lithium ion power battery production enterprises, the process and materials are almost the same, the difference is high level of safety, good consistency, high energy density, low level is the opposite. But the power battery is not sells by the height, also is not sells by the catty, but sells by the energy, counts the money by the watt hour. Thus, a large foreign company built a factory in China, expecting the product performance to be better than the current domestic products, but offering a lower price.

Last year, leaders of the state council attached great importance to the development of electric vehicles, and introduced supporting policies to promote the development of electric vehicles, which effectively promoted the development of electric vehicles in China. The output of electric vehicles reached 80,000, ranking the second in the world and expected to reach the first in the world this year. In this excellent situation, the industry generally believes that the main problem hindering the development of electric vehicles in China is the charging facilities. But the development of power batteries is equally important and more far-reaching, the authors argue. Here are four Suggestions:

Power battery: the short board of electric vehicle development needs to pay attention to four aspects

First, the research on new lithium-ion batteries should be strengthened, and their energy density and safety should keep pace with the world's advanced level. Because of the chemical industry characteristics of lithium ion batteries, the cost of advanced products will be lower. Once falling behind, it will be a failure. Of course, security is absolutely important too, the product with poor security again cheap also cannot use. However, the lithium ion battery manufacturing enterprises in China are relatively scattered, and the research and development capacity of the manufacturing enterprises is relatively weak, which is inferior to Japan and South Korea. Therefore, it is necessary to combine all forces to strengthen basic research. In this regard, the automotive industry and the battery industry last year a number of joint establishment of the guolian automotive power battery research institute is duty-bound. The country should also give priority to research and development of new batteries, including new lithium-ion batteries and next-generation power batteries.

Second, we should attach importance to the development of the entire industrial chain. In other words, energy density and safety should be taken into account while studying the formula of battery materials. Attention should be paid to the synchronous development of battery raw materials, battery monomer, battery pack and battery management technology. Pay attention to even the test of battery and raw material and the technology of production and equipment. The test of our ability to keep up with the world is not the number of inventions and patents or lab samples, but the quality and safety of our products. In the development of the whole industrial chain, special attention should be paid to international cooperation. We should actively support battery and raw material manufacturers to carry out international cooperation, learn international experience and enter the international cycle.

Thirdly, power battery is the shortcoming of electric vehicle development in China. Electric vehicle manufacturers, battery manufacturers and electric vehicle users should pay special attention to the safety and declining battery performance of electric vehicles after their production and sales soared last year.

Fourth, as soon as possible to change China's automobile power battery production of the decentralized situation. The state should strengthen the economy, electric car manufacturers should centralize procurement, and local governments should abandon local support for battery production.

The page contains the contents of the machine translation.