Development of electric vehicles should not be further show battery technology should first

On November 6, the 25th EV Conference will be held in Shenzhen. This is the third time that China has held an electric car conference after Hong Kong in 1990 and Beijing in 1999. Under the current circumstances of the new energy car hot, the attention of the electric car assembly will surely exceed that of any previous session. At the same time, various new technologies and new theories will also give us some gains. Of course, this is also a show. There will be a variety of shows on the stage. These shows will also create a false prosperity. A few days ago, an executive of a self-owned brand car company stated that we did not need to do a show anymore. We only wanted to create an electric car that the people bought. What he said should be truthful. After all, people's acquisitions before are enough to attract attention. Do we ordinary people need to watch shows, it certainly is not, we need to be able to buy, with a convenient and safe electric car.

The high-level words of the car manufacturer have another meaning: Many car companies’ behaviors about electric cars are for propaganda, making electric cars have become more or less a sport, they are in a dry stage, everyone is making, and all Have a magnificent plan. But is it really easy to make electric cars? Obviously not. If they are, those multinational car companies must outdo us too much in terms of technology, funds, and R&D capabilities, but they are not unsuccessful either. In fact, the development of electric vehicles currently needs to solve three problems: motors, electronic controls, and batteries. These three are indispensable. Compared to motors and electric controls, the low energy storage of batteries is a very big shortcoming. If you solve the battery problem well, using existing technology can make electric cars run first. Just like the electric cars that we now have made by some car companies, instead of replacing the engine with an electric motor, the battery has replaced the fuel tank. The problem of low energy storage of batteries is not one or two days. Although there is no specific statistics on how much manpower and resources are spent on R&D in this area, the result is not very effective. Whether it is a fuel cell, a lithium battery, an iron battery, or a lead-acid battery, the fundamental problem of low energy storage cannot be solved very well. And according to the current various solutions and technological level, there will be no qualitative leap in a short period of time.

Under the premise of no breakthrough in battery technology, many electric vehicles use lead-acid batteries. Recycling lead-acid batteries is a difficult problem. Poor treatment can pollute the environment. In some suburban suburban areas and townships, piles of used batteries are often seen outside the vehicle maintenance points. The recycling and disposal situation is not optimistic. It can be imagined that if there are really some companies or agencies that expect, electric vehicles are A few years later, even if a small percentage of lead-acid batteries were used, the total amount would be very alarming. Now it is a car battery, a battery can be used for about 3 years, and electric cars, how to install a few batteries, and it is always the charge and discharge, life is certainly less than 3 years, how these batteries Deal with the situation may appear the same as the white pollution. Lithium batteries and iron batteries and fuel cells have no pollution, but they have their own deficiencies. Lithium batteries generate high temperatures during charging and discharging, and they may explode. Iron batteries have a low life span and generally only charge and discharge hundreds of times. Fuel cell technology is still immature and there is still a long way to go from large-scale commercial use.

Since there are so many immaturity and need improvement in the battery industry, will it not be possible to develop electric vehicles? It is obviously wrong. As long as we have to study and try to make breakthroughs, we will know that those problems need to be resolved. The key now is who is going to study. The car manufacturers are vehicle manufacturers. They are building cars. They have no problems with various matching experiments. They can develop motors, electronic controls, and batteries. They are not their expertise, but they only develop electric vehicles. Can be completely absorbed, or rely on solutions provided by component suppliers. Whether relying on itself or relying on parts and components is an expedient measure, it is not the best policy for the electric vehicle industry, which will develop in the future. In this regard, coordination at the national level is needed. Focus on the strength of the entire industry to tackle key problems. How can it be faster than the individual car companies' own piecemeal progress? With the results everyone can share, not only is it possible to achieve a curve overtaking, but also our The overall level will also increase, creating a virtuous circle.

The development of new energy vehicles is to cope with the reality that oil will be depleted, that is, to find a substitute for the fuel tank, the battery is the moment, so the battery is the basis for the development of electric vehicles, if the level of battery energy reduction is restored, no matter how good Motors and electrical controls are also in vain.