Analysis of power battery: Who will be the star of new energy vehicles tomorrow?

In recent years, new energy vehicles seem to have been crouching for many years, waiting for an opportunity to move, waiting for a chance, once it appears, it will burst red overnight, but many people think that new energy vehicles and fuel vehicles are small meat grade, I do not know In fact, it is also considered to be the "old bacon" of the same year as the fuel car. The world's first electric car was born earlier than the internal combustion engine. In 1873, the British Robert Davis made the world's first practical electric car, but for various reasons, the fuel car replaced the electric car. The mainstream, but the wind and water turn, and immediately turned back.

At present, the world's new energy vehicles are divided into a variety of, mainly: pure electricity, hybrid, new fuel vehicles.

Although the current stage of mixing is a popular new energy vehicle, if you want to completely get rid of fuel, then in the ultimate form of future development of new energy vehicles, hybrid models will be phased out, pure electric vehicles and new fuels. The car will be in the upper position.

However, individuals believe that the most promising future is still new fuels, because the new fuels are relatively rare.

At present, pure electric vehicles can be divided into several factions, such as pure electric vehicles equipped with battery motors. Enterprises such as BYD are quite successful in lithium batteries. They are not subject to technical restrictions on new energy vehicles such as batteries, motors, and electronic controls. The development prospects are better than other technology-restricted car companies. Even Tesla, which was once favored by the industry, has a serious shortage of production capacity because it does not have the ability to independently produce batteries. Therefore, it is very dangerous. . The main use of the car is a lithium-ion battery, which can be recharged. This recyclable battery was born in 1996. Safety, capacity, and price/performance ratio have all risen to the next level.

There are also car companies specializing in hydrogen fuel, such as Toyota, Honda, and Hyundai. Toyota's Mirai, Honda's ClarityFuelCell, Hyundai's Nexo, hydrogen fuel has a shorter filling time than pure electric vehicles, so it also has a longer endurance, its energy conversion efficiency can reach 60%, and will not produce Any pollutant can achieve true zero emissions, but hydrogen fuel also has a lot of flaws. For example, to store hydrogen fuel is a very technical test. I believe that when you look at the chemical element table in junior high school, you know, Hydrogen is in the first place. It has only one electron inside. Therefore, the volume of hydrogen atoms is very small. Even in dense containers, hydrogen atoms are easily escaped, and the stability of hydrogen atoms is poor. It is very easy to be dangerous.

At present, the technology of hydrogen atoms is relatively immature, resulting in an increase in its cost. In addition, the basic supporting facilities are not perfect, so it is still a long way to go to study the hydrogen fuel road. Similar to methanol fuel, but methanol fuel is relatively better, because it is cheaper and does not produce pollutants, but its energy density is small, compared with the same volume of gasoline, methanol vehicles The cruising range is shorter and corrosive to metals. Cars that use methanol fuel require a specially modified engine. However, methanol has been listed as an alternative fuel for future car development, and the infrastructure such as filling stations is not seen. The prospects are still very impressive. At present, Geely Automobile is quite successful in researching methanol vehicles and has launched a methanol-powered car.

Of course, the most amazing thing in the industry is the graphene battery. Here I have to mention the Zhengdao Group, they are very persistent for graphene batteries. At this year's Beijing Auto Show, Zhengdao Group, with its extended-program electric vehicles H500, K350, HKGT debut, they are more willing to use the vehicle's own fuel to charge the battery through the generator range extender, so that the endurance of these vehicles will reach or More than 1000 kilometers. The graphene battery, which has been working tirelessly for the right way, can also achieve a comprehensive life of 1,000 kilometers. And has the core components long life, 100% increase program and so on.

Graphene batteries can compress the charging time to the extreme due to the rapid and large amount of lithium ions moving between the surface of the graphene and the electrodes. However, it has to be said that the graphene cost is really high, and if it can be mass-produced in the future, It is naturally good to reduce costs, but it takes a lot of time to solve.

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