"Our taxis in Taiyuan have long been replaced by new energy vehicles." A few days ago, a reporter found on the streets of Taiyuan, Shanxi: all taxis running around the city are blue and white BYD pure electric vehicles. A taxi driver who drove for us told reporters, "I am one of the first to drive a new energy vehicle. Currently, among the nearly 10,000 taxis in Taiyuan, there is not a single one that uses fuel. This is the first of its kind in the country."

　　The driver was very talkative: "This 300,000 yuan car enjoyed state subsidies, and I got it for less than 100,000 yuan. It's very easy to drive." The driver proudly told reporters. When a reporter asked how many kilometers the car could run on a single charge, the driver replied, “After this car has run more than 300 kilometers, I don’t dare to run it anymore for fear of being left on the road. However, Taiyuan is not a big city, and charging it overnight is enough to run it for a day.” .”

　　Later, the reporter asked about long-distance running and costs. The taxi driver said that as long as there are charging piles in all highway service areas in Shanxi, there are also charging piles in hotel parking lots in some cities. As he spoke, the driver took out his mobile phone and opened an APP to tell reporters that this was the location of all the charging piles in Taiyuan City. When driving a fuel-powered vehicle, it cost nearly 300 yuan to fill up a tank of gas. Now it only costs 60 to 70 yuan to fully charge it. It is even cheaper to charge at night.

　　According to reports, in recent years, my country's new energy vehicle industry has developed rapidly, especially in the field of pure electric vehicles, becoming the world leader. In 2017, production and sales reached 794,000 vehicles, with 1.8 million vehicles in stock. Industry insiders estimate that production and sales will exceed 2 million vehicles in 2020. With the rapid expansion of the new energy vehicle industry, it has also driven the development of the lithium-ion power battery industry, which is the core component of new energy vehicles. "Currently, lithium-ion power batteries are most suitable for use in new energy vehicles in terms of performance stability and technological maturity." Wang Jingzhong, full-time vice president of the China Battery Association and president of the Waste Battery Recycling Branch, told reporters . In recent years, the state has invested tens of billions of yuan every year to support the development of new energy vehicles. Under the encouragement of policy guidance, the number of vehicles has increased year by year. Their contribution to urban air quality cannot be underestimated, and they conform to the general trend of environmental protection.

　　Wang Jingzhong said that the output of power lithium-ion batteries is increasing and showing a rapid development trend. New technologies, new materials, and new systems are constantly emerging. System performance is constantly improving. The technical content and product quality are in the same development period as Japan and South Korea. my country has become one of the international leaders. One of the three largest manufacturing countries for lithium-ion power batteries. "New energy vehicles are facing important problems. The issue of battery cruising range has always been a bottleneck in the development of the industry." Wang Jingzhong said that the energy density of power lithium-ion batteries is not enough, the cruising range is only 350 kilometers, and the battery life is only four or five years. time. At present, the cost of new energy vehicles is relatively high, and the battery cost accounts for about half of the entire vehicle. When new energy vehicles are sold, the state provides a large amount of subsidies, accounting for about 60%-70% of the vehicle price. In other words, if a consumer spends 100,000 yuan to buy a new energy vehicle now, the battery will be scrapped in four or five years. , it will cost a lot of money to replace it.

　　At present, more than a dozen power lithium-ion battery companies have established national-level enterprise technology centers and engineering centers to increase their efforts in the research and development of basic, critical, and common technologies. It is expected that the cost and battery life of power lithium-ion batteries will be truly solved soon. Mileage issue.

　　Wang Jingzhong believes that "battery technology does not have only one development path. As a hydrogen fuel cell with higher energy density, it may become a new energy technology that can be truly relied on in the future. Adding a bottle of hydrogen fuel can run 1,000 kilometers. At the hydrogen replacement station It can be replaced in 3 minutes. The working principle of this fuel cell is that hydrogen and oxygen react in reverse in the fuel cell to become the power of the car. After the reaction, water is generated, truly achieving zero pollution to the environment."

　　Of course, there is still a huge technical gap that needs to be overcome for the large-scale popularization of hydrogen fuel cells at this stage. For example, the catalyst in the fuel cell requires platinum, which is very expensive. Alternatives to platinum materials are still being researched. So once hydrogen fuel cells can overcome problems such as catalytic costs, the transportation revolution and even the energy revolution it will bring will be disruptive.

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