How to use the new energy car lithium battery?

　　Author ：Iflowpower – Portable Power Station Supplier

The current power lithium-ion battery is currently two kinds: lithium iron phosphate and three yuan lithium. Lithium iron phosphate is longer than life and safety, while three-dimensional lithium is longer than low temperature performance and capacitance of unit cells. About battery life, lithium-ion battery on ordinary electronic products is about 5 to 20 years, with an average of 8 years.

However, with the current technology level, the life of the lithium-ion battery in electric cars is approximately 3-5 years. The reason why the electric car battery life is short, and the reason is nothing is affected by the working environment and causes the large-scale charge and discharge. The number of three yuan lithium is about 500 to 1000 times, and lithium iron phosphate is around 2000 times; with the least 500 times as an example, Chery EQ is 200 kilometers, and the comprehensive condition is 160 kilometers according to 80%.

500x160 = 8 Wan, that is, under normal circumstances, Chery EQ actually drove about 80,000 kilometers, battery capacity will attenuate to 80%; if the phosphate is calculated by 220,000 kilometers, if the battery is 400 The km is 640,000 kilometers. If the battery capacity on the electric vehicle is attenuated to 80% of the initial capacity, the renewal mileage of the electric vehicle will be significantly reduced, and when the battery capacity is attenuated to 70% or less, it must be replaced. Regarding many pure electric vehicles, the cost of the battery accounts for about 40% of the total cost of the car, that is, replacing the battery is equivalent to changing the half a car.

We understand that electric cars are different from traditional cars. They don't use engine without burning gasoline. They use power lithium batteries and motors.

Dynamic lithium battery as the core components of electric vehicles, many problems such as large life, durability, and damage, etc. More fearful, new energy automotive battery components can occupy more than about 30% of the vehicle cost, and the actual replacement cost of the car battery assembly is as high as 5-6 million, which means that the car mainly pays a lot of costs to replace or repair the battery. Too high cost.

Therefore, the most important factor in the life of electric vehicles is the condition of its power lithium battery. So, how long is the life of electric car battery? In fact, the manufacturer's battery quality assurance policy is enough to explain this problem. After all, there is a problem with the battery in the warranty period.

So today, let's analyze the battery warranty policies of the major new energy vehicles, and thus calculate the battery life of their products. Beiqi new energy in pure electric cars, Beiqi is definitely my brother in my country. The 2017 electric vehicle EC series sales exceeds 70,000, the strength is amazing.

At present, the Beiqi battery uses a three-dimensional lithium-ion battery, which is longer than the previous compared. Official data shows that the battery is full of more than 3,000, and the battery capacity attenuation rate is less than 15%, which can be used for 10 years. At the same time, Beiqi new energy also supplies 8 years / 150,000 kilometers of warranty policy for all vehicle (battery, motor, vehicle controller, etc.

). If you think about it, after 8 years or 150,000 kilometers, even if the car is not bad, it also replaces new. It seems that Beiqi is a very conscientious company.

Teslatsla can be said to be a star company of new energy cars, not only models, model3 and modelx are very popular in our country, but also the price is generally higher. In terms of quality assurance, Tesla's Models as an example, the vehicle warranty is 4 or 80,000 kilometers. The warranty period of the driving device and the battery pack is not limited to the number of kilometers in 8 years, and the number of car is 557 kilometers, and the battery capacity is 90 degrees.