Electronic enthusiast website news: The main content of this article is the importance of rare earth resources for the new energy automobile industry; rare earth resources may become a bottleneck in the development of new energy industries.
When I first saw this article, I was very depressed! What exactly is "rare earth"? How does "rare earth" relate to "new energy vehicles" ?! Maybe many people have not heard of it like the editor. Rare earth, I ca n’t think of any connection between these things and our daily lives.
So what is rare earth?
Rare earth refers to the lanthanides in the periodic table of chemical elements. Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), and the two elements closely related to the 15 elements of the lanthanide, scandium (Sc) and yttrium (Y), a total of 17 These kinds of elements are collectively called Rare Earth, or RE (R or R) for short.
What does "rare earth" have to do with "new energy vehicles"?
In fact, with the continuous development of science and technology and the continuous expansion of the new energy industry, the rare minerals such as neodymium, terbium, dysprosium, and europium are more and more closely related to our lives. For example, neodymium is an indispensable substance for the manufacture of hybrid vehicles and new batteries. On Toyota Prius, you can find at least 25 different rare minerals. In addition, these substances are also widely used in electronic products such as ipod and blackberry. The rare earth called "industrial gold" has an irreplaceable role in military, metallurgy, petrochemical, and new materials. For example, permanent magnetic materials made of rare earth have a magnetic performance 4 to 10 times higher than ordinary permanent magnetic materials. In particular, neodymium iron boron permanent magnets are currently found to have the highest magnetic performance, and are called "super magnets" and "contemporary permanent magnets." The King of Magnetics. " Because of the unique advantages of rare earths in permanent magnet materials, rare earths have become a key raw material for motors and batteries used in hybrid and electric vehicles, and have irreplaceable necessity and uniqueness in the manufacturing process of new energy vehicles.
After the BYD electric taxi was hit by a fire and exploded, the safety design of electric vehicles was questioned by the industry and consumers. Today, a wave of waves has not yet subsided and the waves have invaded again-new energy vehicles are once again subject to rare earth bottlenecks and rare earth metals The supply has reached a "critical" level and the market development prospects are even worse ...
Gas-electric hybrid vehicles have made a leap. They are no longer just small displacement cars used by environmentalists, but are a viable alternative to sports cars powered by fossil fuels. However, the development of environmentally friendly vehicles may have some unexpected consequences. Although hybrid cars may reduce oil consumption, they are putting pressure on increasingly scarce natural resources. A variety of rare earth metals are used in the production of batteries for electric vehicles. Rare earth metals are used in lasers, X-ray tubes, and gadgets like smartphones. A rare earth metal called neodymium allows Apple ’s iPhone to vibrate.
Among the 17 rare earth elements, many are important components of high-strength magnets used in environmentally friendly electric vehicles. The magnetic field generated by the magnet makes the motor shaft rotate. One kilogram of magnet made of neodymium can produce 80 horsepower, which is enough to start the Toyota Prius hybrid car. According to statistics from the British Automobile Manufacturers and Sellers Association, from January to the end of May this year, sales of electric vehicles increased by 36% year-on-year. If we continue to maintain this growth momentum, then the availability of rare earth materials becomes crucial. Although the name is rare earth, these 17 elements are actually very common in the earth's crust. However, mining rare earths is not cost-effective because their density is usually very low.
The US Department of Energy takes this issue very seriously. It said in the "Key Material Strategy 2011" that the supply of five rare earth metals will reach a "critical" level in the near future. These include neodymium and dysprosium, which is also used to make magnets and batteries used in electric vehicles. Another factor that may hinder the development of electric vehicles is China's strict control of rare earth metals. China's rare earth exports account for 90% of the world's total, while consumption is about 70%. China strictly controls the export of rare earths. In 2010, after territorial disputes with Japan, China stopped selling rare earths to Japan. This stalemate caused the price of neodymium to soar from less than $ 50 per kilogram to $ 500. Ultimately, high prices forced Toyota to design a hybrid car that does not rely on rare earth magnets. Other car manufacturers have followed suit. The British government joined the operation this month. The British Technology Strategy Committee and the Ministry of Commerce, Innovation and Skills invested £ 750,000 to develop electric car engines that do not require rare earth magnets. The three-year project was led by Cobham Technical Services, with Jaguar Land Rover and Ricardo also participating.
The editor of the electronic enthusiast website said: Putting aside commercial factors, from the perspective of green environmental protection, getting rid of the dependence on rare earth metals can make these electric vehicles more in line with the title of green cars. This is because although hybrid vehicles can reduce exhaust emissions and reduce oil consumption, the process of producing hybrid vehicles is not environmentally friendly. Throughout the entire new energy vehicle industry, it has to be said that rare earth resources may become a bottleneck in the development of the new energy industry!
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