Will charging in a low temperature environment damage the lithium battery?

At present, the operating temperature range of general lithium batteries can be controlled between -20 degrees and -60 degrees, and low-temperature lithium batteries made of special materials can be discharged in -40 degrees Celsius. However, the voltage and capacity will be reduced. For example, the overflow battery of a polymer single-cell battery is 4.2V. When it is placed in an environment of -40°C, the voltage will quickly drop below 3.4V. The low-temperature discharge capacity of the battery we made can reach the standard. Said capacity is more than 80%. Low-temperature batteries can only be discharged in a low-temperature environment, but they cannot charge electricity. Because of the characteristics of lithium battery materials, charging in a low temperature environment can cause serious damage to the battery. As long as it is within a controllable temperature range, charging will not be a safety issue. In addition, the current batteries are subject to low-temperature and high-temperature charge-discharge detection before they leave the factory or during customer review. Batteries that fail to be detected are not allowed to enter the market (regular genuine batteries). The working principle of the lithium battery: It depends on the movement of lithium ions between the positive electrode and the negative electrode to work. In the process of charging and discharging, Li+ intercalates and deintercalates back and forth between the two electrodes: when recharging the battery, Li+ deintercalates from the positive electrode and inserts into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. Therefore, it is not that the battery is used quickly at low temperature, but because the low temperature reduces the activity of lithium ions in the lithium battery, and the power is relatively reduced. If you take it back to the normal temperature environment, it will return to normal soon. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Is there a bottom line for the energy density and cost of lithium batteries?