Key technology of fuel power battery system -Lithium - Ion Battery Equipment

The key technology and development trend of vehicle fuel power battery system -Lithium - Ion Battery Equipment

In the future, the development of cars is considered the diversification of energy. In terms of energy diversification, the electrification of electric vehicles or cars must be the future development trend of the future. I want to say that from two aspects, we can say that the driver's electrification is in the first aspect. We understand that after using the driver's electrification, it automatically gives back, so that the driving efficiency can be greatly improved.

Then the second aspect is the diversification of energy. Everyone understands that because the dependence of our country's foreign oil resources is getting higher and higher, the energy security of the country is becoming more and more important. It is the diversification of energy. So for the diversification of energy, it is necessary to find a middle carrier and middle energy for the automotive industry. This will be very important about the development of the automotive industry. The current carrier of the ideal middle is electricity. Hydrogen, so the current pure electric vehicles and fuel power battery vehicles have become the focus of domestic and foreign development.(Lithium - Ion Battery Equipment)

Today, we will focus on the fuel power battery system, especially the key components and a key technologies in the fuel power battery system. The gap between key components, key materials and foreign countries in our national fuel power battery technology is still relatively large. The most important part is the electric pile of fuel. In order to make it normal, it is necessary to continuously supply air and hydrogen, so we want a hydrogen supply body, so we need an air supply body. In addition, we say that we say The fuel power battery reacts with hydrogen and oxygen reactions when working. On the one hand, this water may be blocked, and on the other hand, it also plays an electrolyte in a moist fuel power battery pile, that is, the use of the membrane. Therefore, for the electric pile, it is essential and harmful, so the water thermal management system of fuel power batteries, cooling the electric pile, the second aspect of water recycling and hydrogen to the air to humidify the air to the air to the air to the air to the air. This is an important principle of fuel power battery system.

Introduce some of the key components in the fuel system, which is especially hopeful to provide reference for companies that can provide related companies. We believe that there are 4 key components of the fuel power battery system. The first is the electric heap. We say that the fuel power battery system and the fuel power battery engine are the heart of fuel electric vehicles, and the electric pile is the fuel power battery system The key point, we say that the electric heap is to chemically reacts the electric reactions of the air system and the hydrogen system input. This is an important electric heap in our domestic and foreign. For the electric pile, his electric pile volume ratio has reached 3.1 kilowatts per liter. About 1.2 kilowatts of product -level products in China are about 1.2 kilowatts. The gap with abroad is still relatively large. In addition, in such a key component, many key materials are involved, which is important to catalyst, membrane, carbon, GDL (sound). The research and development of individual companies, the reliability durability of the product and the gap between foreign countries are relatively large. Basically, there are relatively few in applications. Most of the key materials are foreign products, which also leads to the cost of fuel power batteries in our country. It is much higher than abroad.

The second part is a hydrogen circulation system, or a hydrogen circulating pump. We all know that the fuel for fuel power batteries is hydrogen, so in order to improve its chemical reaction speed, the electric pile of hydrogen is added to the concentration of hydrogen in the electric heap to add its pressure. The hydrogen circulation in the pile of electric heaps will bring a lot of benefits. One is that one is that the first is that it can improve the power density, and the other is to reduce hydration. Therefore, the hydrogen supply system and hydrogen circulation pump are very critical components. At present, there are about several cases of the hydrogen cycle. The first is not circulating. This is mostly used in the most of our country's 11th, fifteenth and twelfth fifteenth. Pumps, this is an important feature. In the future, it should be said that it is mainly based on hydrogen circulating pumps. In some cases, the spierator and the hydrogen cycle pump are combined in some cases.

The third key component is the humidifier. It has just been mentioned that the electrolyte in the electric heap is a proton exchange film. When working, this film must be kept moist. On the one hand, it is hydrogen supply for proton transmission purposes. On the other hand Dynamic balance, improve the performance and durability of electric heaps. This part is a humidifier. The development of the humidifier has gone through many processes. In the past, the use of cold method and used water spraying and humidification. Now it is used to use exhaust to humidify the air. At present, this one in China is basically blank. It is important among American companies and South Korean companies. This is the specific requirement for the humidifier to give the humidifier.

The following key components are air compressors, or we are special compressors we call it fuel power batteries. Its use is very simple, that is, air with a certain temperature, a certain pressure, and a certain flow for electric heaps. Our domestic compressor industry should be said to be relatively complete. Why can't we apply it in fuel power batteries? There is a special requirement for fuel power batteries, that is, no oil, that is, the oil in the air does not allow the oil. In this case, the current traditional compressor cannot be used in the fuel power battery system, so we need to develop fuel power batteries. Special oil -free compressor. The so -called oil -free high -speed compressor, for the sake of the car, we say that the compressor of the fuel power battery must be small and light weight, so in order to meet this requirement, we use a centrifugal compressor. The motor adopts high short speed, with a short speed of 100,000 rpm. Basically, the domestic ones are between 100,000 and 150,000. Relatively large.

The fuel power battery has just mentioned 4 technologies. The first is the water thermal management technology. The electrolyte proton switching membrane in the fuel power battery should be kept moist when working, otherwise the transmission of this hydrogen ion will be difficult to pass, and another one will be passed. In terms of resistance, the internal resistance will increase. On the other hand, hydroxide reactions will generate water. If the management is not managed properly, this flow channel will be blocked. The goal of water thermal management is to ensure that this membrane is moist, and the possibility of blocking water in cathode and anode has since ensured. Among the recently announced car of Mirai, Toyota should say that its core key technology is to work in its water management. This work should be announced after the announcement. Specifically, he canceled the humidifier. It turned out that the air system was humidified. He canceled this. The purpose of Toyota was to reduce the cost. Without this humidifier, his cost would be greatly reduced. How did he do it? Woolen cloth? It should be said that a few key technologies have been used. One key technology is that he has done this film very well. The original is above 20 microns, and Toyota’s film uses 10 microns. This is the first measure that is conducive to the transmission of cathode water to the anode water and the anode -to -cathode water. The second measure is that the air and hydrogen use the method of reverse flow. The flow is exactly the opposite. The third measure is to control this thermal management on the air entrance. The temperature is relatively low and the temperature of the exit is relatively high. At the time, because the air is not humidified and the temperature is relatively low, as the evaporation decreases, the membrane is not easy to dry. This is the third. The fourth key technology is that the hydrogen uses a large circulation volume to circulate. After doing this technology, the so -called self -humidified technology is achieved. How can it be achieved? I can talk briefly.



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