Why should the battery of a pure electric vehicle be warmed up?

Because the temperature is low in winter, the battery life of electric vehicles will generally be greatly reduced. This is mainly due to the increase in the viscosity of the battery's electrolyte under low temperature conditions. The electrolyte between the positive and negative electrodes of the lithium battery is used to conduct ions, and it is also the guarantee of the high voltage and high specific energy of the lithium battery. Therefore, the increase in electrolyte viscosity will cause the battery's charge and discharge function to decrease. At this time, the battery is warmed up, which can effectively alleviate this situation. Regarding battery preheating, each manufacturer has different skills. Some are to install heaters around the battery, and some are to heat the battery coolant to heat the battery, and the purpose is to keep the battery at a normal operating temperature. It should be noted that despite the preheating method under too low temperature conditions, charging and discharging will also cause certain damage to the power lithium-ion battery. However, in the process of using the car, the car owner does not have a clear demand for the hot car. However, in order to ensure the endurance, drive in low temperature conditions, try to develop a good driving habit, and beware of violent driving by stepping on the switch. Because this will not only reduce the battery life, but also cause damage due to the rapid discharge of the power lithium-ion battery, and then shorten the service life of the power lithium-ion battery. When the time comes to really replace the power lithium-ion battery, it will be a big loss because of small things. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to test the maximum failure temperature of lithium batteries