Talking about two kinds of attenuation of power lithium-ion battery

There are two attenuation methods for power batteries and their impact on electric vehicles. There are two types of power lithium-ion battery attenuation for electric vehicles: one is the attenuation caused by the power lithium-ion battery cycle, and the other is the power lithium-ion battery in a low-temperature environment. Under the attenuation. The former is the upcoming performance of the power lithium-ion battery's service life, and the latter is the performance of the power lithium-ion battery in a low-temperature environment. Both have a huge impact on electric vehicles. Power lithium-ion battery is the power source of electric vehicles. After attenuation, the energy storage and charging power of power lithium-ion battery will be directly affected. In the case of electric vehicles, the mileage decreases and the charging speed slows down. The normal use of electric vehicles will be greatly affected. Let's take a look at the specific conditions of these two attenuations. As the number of cycles increases, the energy battery will decay. To a certain extent, the power of the battery will drop a lot, and generally need to be replaced. The current replacement standard is to reduce the function of the power lithium-ion battery to 80% of the original. The current mainstream lithium iron phosphate batteries and ternary lithium batteries have been reduced to 80% of the standard replacement amount: the average number of cycles of lithium iron phosphate batteries is between 1500 and 2000. The number of cycles of a ternary lithium battery is generally between 1,000 and 1,500. The number of cycles from one charge to one drain. For example, you can complete 5 cycles every month. We use 1000 cycles. The battery life is about 200 months. The method of judging the attenuation of the power battery: In the use of the car, if there is a significant drop during driving, and the charging or virtual power is serious, then it may be a problem with the power battery. Just like our mobile phones, there is often a phenomenon in the use of late return. Continuous charging is not enough, or it seems to be full, but the power will quickly be lost. The same is true for electric vehicles. If there is a problem with the battery, similar things will happen. From these abnormal aspects, you can roughly determine the degree of attenuation of the power lithium-ion battery. Low temperature decay of power lithium-ion battery: The external environment temperature is low in winter, and the chemical reaction of lithium-ion battery power for new energy electric vehicles will slow down. This will cause the charging speed to become slower, the journey becomes shorter, the external temperature is about minus 10 degrees Celsius, and the battery's cruising range will be shortened by 30%. The lower the temperature, the more the battery decays. This situation is a phenomenon of low temperature attenuation, and the use of electric vehicles will also cause great inconvenience. To sum up: the above points are the attenuation of lithium-ion batteries for electric vehicles. As far as electric vehicles are concerned, no matter which way, the impact is huge. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.