Development of electric vehicles must first break through battery technology

Zhang Guobao, director of the National Energy Commission’s expert advisory committee and former director of the National Energy Administration, recently stated that at present, there are factors that restrict the development of electric vehicles in China, such as technology and policy environment. However, to develop electric vehicles, battery technology must first achieve breakthroughs.

In terms of technology, Zhang Guobao said that finding an energy source other than gasoline, diesel, and liquid fuel has always been a direction for the automotive industry. But for so many years, there has been no major breakthrough in battery technology. The battery occupies a very large weight in the entire electric vehicle, at least one-third of the entire weight of the car. The weight of the battery is 600 kg, and it is always charged. The distance to run is also a hundred kilometers, and the charging time is still quite long. Although some measures can be taken to shorten the charging time, the charging time is always a few hours. These all affect the use of electric vehicles.

In terms of costs, Zhang Guobao said that although there are subsidies in various places, with the subsidy, customers who buy electric cars still have to measure it. First, whether it is convenient to use, whether it can be charged at any time, and whether it is convenient for all aspects of maintenance. Although various cities are now doing charging piles, consumers still feel that wherever I go, they can do it. In addition, the data shows that the cost of operations is still low, because buying gasoline costs money, gas prices are rising, electricity is needed instead of gasoline, it may be cheaper to operate, but the initial input costs, including its after-sales service, these aspects The problem still exists.

At the same time, Zhang Guobao emphasized that when a new thing emerges, it always has its imperfections and imperfections. But humans are constantly advancing in solving these problems. Therefore, although electric vehicles have encountered some problems, they have also made great progress. On the one hand, the electric vehicle's cruising distance after charging once becomes longer, and sometimes it takes more than 100 kilometers to run on one charge. Now it can run for 260 miles and can run up to 400 kilometers, plus a box of oil to run about the same distance. The maximum speed is 200 kilometers per hour, not too much with a gasoline car. On the other hand, the charging technology is constantly improving and the charging time is shortened.

“These aspects of electric vehicles are gradually developing toward use. Therefore, we should be sure that it attaches importance to it. Who can guarantee that gasoline will not increase prices later?” said Zhang Guobao.