If the lithium battery can not take on the future development of new energy vehicles task, who can play a leading role then?
Although there are many domestic enterprises to vigorously promote the lead-acid batteries, but because of high pollution, this feature makes this product not to be optimistic, when the development of more than a helpless feeling. “Lead metal refining, manufacturing batteries, battery recycling process are pollution, cars on the road only when there is no pollution. Can not say that this is clean energy. Lead-acid battery is not a technology should be vigorously promoted. Currently Lead batteries in China has 45% of the production, Europe and the United States will use, but not manufacturing, not recycling, pollution in China. “Sha Yong Kang said.
In contrast, fuel cell is the number of experts look for direction, there are many international giants continue to send forces in this area. Fuel cell is the hydrogen and oxygen in the air into water by combination of electrochemical process and generate electricity plant. Fuel cell work without combustion, no moving parts, with the energy conversion efficiency (actual use efficiency as an ordinary internal combustion engine 2 to 3 times), no noise, long operating life, high reliability and good maintainability; it’s the only a product is water that is really clean, renewable requirement. From 1994 a fuel cell vehicle came to just over a decade now, technology is growing very rapidly.
Action, the current world countries the development of fuel cell, fuel cell vehicle technology to a very high concern. Toyota has announced that the first one fuel cell vehicles will be available in 2015. Last year in September, Toyota, Honda, Hyundai, Ford, General Motors, Daimler, Kia Motors and other well-known joint statement, called upon the Government by 2015 to build more hydrogen fuel infrastructure. If this goal can be achieved, from 2015, worldwide there are hundreds of thousands of hydrogen-powered vehicles will be gradually achieved commercial production. Although the cost of fuel vehicles still very high, but yes Zhenzheng meet clean standard technology, industry believes that with expanded its production scale, reduced costs a matter of when.
At the same time, hydrogen has become the safety of all concerned that the focus of this, Zi-Feng Ma replied that the security issues around the world on hydrogen technology very hard, hydrogen as petrochemical, metallurgical and pharmaceutical industries important raw materials, their storage and transport arrangements have a very good solution. We are 973 project team is involved in the development of national standards board hydrogen storage and international standards, the current laboratory of the hydrogen cylinder had reached 70 MPa, while only about 35 when commercial MPa greatly enhanced the safety factor. In addition, the hydrogen source is diversified. Currently in Shanghai, very different peak and valley power, tight supply in summer, while spring and autumn off the power supply, use of peak and valley power to electrolysis into hydrogen. As for the Shanghai Baosteel, Shanghai Petrochemical and other large enterprises, the hydrogen product is already a large-scale, so that future prospects are bright.
The general direction, new energy vehicles will inevitably introduce new technology to promote the expansion of the battery. Zi-Feng Ma believes that the future will be fuel cells and batteries or fuel cells and capacitors to mix the advantages of combining the two is a good direction. “We know that a good power rating for the design of fuel cells, electrochemical hydrogen reaction by restricting its output power is stable, such as loading 60 kilowatts of fuel cell vehicles, slow down or stop when the fuel cell is always at work, then electrical storage devices give the extra charge, when the vehicle acceleration or hill climbing, the fuel cell power can not become 70 kilowatts from 60 kilowatts, this will be supplemented with the electrical storage device, this combination is conducive to the improvement of dynamic performance . short, we should select some more direction, more cutting-edge place to look. For instance, we present and Michigan University to lithium – air batteries such as the latest technologies, this relatively remote, only after 15 years to have a big development. ”
Sha Yong Kang believes that the technology of new energy vehicles is very diverse, do not have to put all eyes are focused on the battery itself. The concept of new energy sources must be wide, with broad concepts have new ideas. Perhaps in the near future will be able to find a new liquid fuel that can replace the methanol and ethanol. Another example is the wireless power technology used in the car. Although there are some problems of remote applications, but the Massachusetts Institute of Technology in 2007, when the technology can be lit by 2 meters outside the 60-watt bulb, which gives people unlimited reverie. The future of the wireless power technology combined with the car might be a viable option, save the plug so cumbersome steps.
New energy vehicles is undoubtedly the future direction of development, after 50 years is likely to fade out of traditional diesel when the stage of history. But as the sand Yongkang said: “The development of new energy vehicles thought to be widened, staring at an immature technology can not blindly launched production. Can not see the market engaged in the project only to the research funding, subsidies to state action.” Japan Toyota, Honda and other manufacturers, such as the 1st decade of painstaking research of a technology, once mature, strong market, other companies can only be far behind to catch up. In contrast, Chinese companies want to bend to overtake the field of new energy vehicles, still need to calm down.