When we talk about BYD, what do you think of? BYD car? BYD battery? Or is it BYD hybrid car, BYD pure electric car?

BYD, originally a manufacturer of fuel vehicles, however, many people do not know that BYD actually started with battery business. It is also not easy for a company to straddle two industries. With the development of fossil energy and environmental protection in recent years, new energy vehicles have suddenly become hot. With batteries as the pillar industry of new energy vehicles, BYD has also become a representative automobile company in the automotive industry.

China’s automobile policy has now shown signs of new energy vehicles. On the one hand, because it is still in its infancy, the production cost is high, and the car population is still waiting to see it. We will strongly support the new energy industry in a policy-inclined manner to transform our country’s energy industry. The adjustments made, on the other hand, are also due to the fact that China’s auto market is getting larger and larger, the use of fossil fuels is increasing, and the pollution generated is also becoming more and more serious. In order to protect the environment, it is also a trend to promote electric vehicles. Imperative.

So, what advantage does BYD have to sit on the top spot of China's new energy auto market? Let's explore it together. Although new types of new energy vehicles such as hydrogen fuel cells and methanol engines have appeared on the market, for now, the highest share of the market is pure electric vehicles, and pure electric vehicles rely on the ability to store electric energy. battery.

At present, the power battery of mainstream electric vehicles on the market is nothing more than the following: three yuan lithium batteries, lithium manganese batteries, lithium iron phosphate batteries. Each of the three types of batteries has advantages and disadvantages. Different manufacturers chose different types of batteries for different considerations. BYD's original battery was the official lithium iron phosphate battery in these three types of batteries.

The well-known Tesla pure electric vehicle uses a three-element lithium battery in its Model series. As for other car companies, BMW, GM, Nissan, and others use lithium manganese batteries. The core part of a pure electric car is a battery. If you want to compare good and bad, you know better than a battery. So to measure the quality of a battery, you can compare energy density, safety, cycle life, cost, and temperature.

BYD's lithium iron phosphate battery is not dominant in terms of energy density. It is 100 Wh/KG, but its safety is the best. The cycle life is also the best, and the cost is centered, although the capacity is at low temperature. The attenuation is too severe, but its charge and discharge temperature can reach 800 degrees Celsius without decomposition, and the normal working temperature also reaches 200 degrees Celsius. From this point of view, lithium iron phosphate predominates in terms of safety and longevity.

Lithium-ion battery, which is a type of battery that Tesla is very fond of at present. Its official name is nickel-cobalt-aluminum-lithium battery. It has a great advantage in terms of energy density and is currently in a leading position, reaching 170Wh/KG. However, the safety is relatively normal, and the cycle life is also at a general level, and the cost is the highest compared with the other two kinds of batteries, and the high temperature is more easily decomposed. 200 degrees Celsius is already the limit, and the normal working environment is around 95 degrees Celsius.

Lithium manganate battery, although its current market share is relatively high, but has escaped the dilemma of being replaced by the other two products, although the cost is the lowest, the best high temperature stability, but its energy density, The performance of safety and cycle life can only be described in general, and the market share in the new energy electric vehicle industry is not high.

Through the comparison of these three kinds of batteries, we will find that BYD's lithium iron phosphate battery has advantages in terms of safety and service life. The ternary lithium battery leads the other two types of batteries in terms of energy density. The LiMn2O4 battery does not perform well in any respect. Of course, it has the lowest cost. (Here we have only conducted comparative evaluation of mature electric vehicles for sale.)

The development of the battery industry has been driven by the fire in the new energy market. BYD's excellent safety and service life of lithium iron phosphate batteries have occupied a place in the new energy automotive market and have gradually grown and expanded. BYD, which started with a lithium battery, took the lithium battery business to bring the auto business to the fast track of rapid development. It was really unintentional.

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