Tesla, a well-known American electric car manufacturer, officially released Model 3, its popular consumer model, last week. The Model 3 world premiere, fanatic fans smashed the store, perhaps because of the superior performance of the Model 3, so that consumers and scientists are looking forward to it. 0 to 60 miles (about 96.6 kilometers) accelerates in just 6 seconds and has a cruising range of 215 miles (about 346 kilometers), supporting the use of super-charged piles, with the same charging efficiency as the Model S and Model X.
Tesla CEO Elon Musk said that the order volume of Model 3 is expected to exceed 500,000 units, and the company may consider building another plant in Europe to expand production capacity. Moreover, Tesla Model3 accepts deposits for each car that varies from market to market, such as US$1,000 in the US and 1,000 Euros in Europe. If they are all calculated at $1,000, Tesla has already received a total deposit of more than $276 million.
Mark Newman, an analyst at Sanford C. Bernstein in the United States, said in a research report released on the 31st that the battery technology of Model 3 has made significant progress, which will make this model far more powerful than any other one on the market. electric car. In the entire automotive technology field, batteries are a particularly critical place for researchers to frustrate, especially for electric vehicles. Because battery researchers have not invented relatively inexpensive super batteries. For most drivers, the battery performance is not enough. Moreover, the cost of the battery is too high. These are the main reasons why electric vehicles are still a niche product to this day.
Mark Newman said that the Model 3 internal battery is from Panasonic, Japan, and consists of a negative electrode and a 10% silicon anode. This battery technology is an important technological breakthrough for experts.
A large part of the battery research effort is focused on creating a working silicon anode that will significantly improve battery performance. In current rechargeable batteries, the graphite anode is typically introduced (embedded) in a charged state with no more than one lithium atom per 6 carbon atoms, i.e., corresponding to the limit stoichiometric amount of LiC6. Lithium atoms play a key energy role in lithium batteries. Simply put, the more lithium atoms in a unit space, the more energy you can get.
If the anode is made of silicon, the lithium ion volume per unit volume can be about 10 times that of the former. In theory, if the graphite is largely replaced by silicon, the graphite cathode may become thinner, thereby expanding the space for accommodating the active material. Silicon can hold more lithium, and each silicon atom can hold 4 lithium atoms. This can increase the energy density of the battery, that is, the energy storage capacity per unit volume.
The smart car industry has unlimited prospects
Smart cars have become a hot industry, and many giant companies have also gathered their attention here, hoping to push smart cars into a new era through technology updates and concept updates. Since 2015, the company has completed the layout of smart Internet electric vehicle R&D, manufacturing, sales, and car networking. It is understood that companies currently involved in the field of smart cars include not only traditional car companies, such as Mercedes-Benz, BMW, Audi, but also Internet giants such as Google and Baidu. All companies hope to seize the commanding heights of the industry and lay a solid foundation for the long-term future.
Technically speaking, the core technologies such as smart driving and car networking are constantly being upgraded and updated, and the Internet infrastructure is becoming more and more popular. These “hardware guarantees†support the future development of smart cars, which will make smart cars become the emerging growth point of manufacturing. .
However, as more and more car manufacturers begin to develop unmanned smart cars, there is a view that smart cars will bring serious ethical problems. In May 2015, at a forum hosted by the Washington Think Tank Bruce Gold Society, it was suggested how to protect yourself or passengers, how to avoid sudden collisions when the car suddenly brakes, or how to avoid turning bumps when the car suddenly turns away to avoid pedestrians. people? Carl Kuhn, an engineer at Siemens in Germany, who participated in the forum, believes that researchers should develop artificial intelligence that can make the right choice between "two bad ideas." When smart cars are truly mature, they should take into account the requirements of intelligence, safety and social ethics, and benefit mankind.
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