What kind of damage does high temperature and low temperature do to lithium batteries?

High temperature damage to lithium-ion batteries: the temperature drops, and the electrode reaction rate also drops. Assuming that the battery voltage remains unchanged, the amount of charge and discharge current decreases, and the power of the rechargeable battery decreases. From the perspective of various environmental factors, temperature is more harmful to the charging characteristics of rechargeable batteries. The electrical level is closely related to the electrochemical corrosion of the lithium-ion battery electrolyte page and the working temperature. The lithium-ion battery electrolyte page is felt It is the cardiovascular of rechargeable batteries. On the contrary, it is the temperature rise, that is, the power of the lithium polymer lithium ion battery rises. In addition, temperature will continue to endanger the transportation rate of lithium-ion battery electrolyte. The temperature rise will accelerate, the transportation temperature will decrease, and the transportation rate will slow down, and it will continue to harm the charging characteristics of lithium-ion batteries. However, a high temperature exceeding 45°C will destroy the balance of chemical reactions inside the rechargeable battery and cause adverse reactions. Low temperature damage to lithium-ion batteries: When used in a low-temperature natural environment for a short time, or when the temperature is not low enough, lithium-ion batteries only temporarily harm the battery power, but it is not easy to cause permanent damage. However, long-term application in a low-temperature natural environment, or application in a low-temperature natural environment of -40°C, is likely to cause freezing of the lithium-ion battery and cause permanent damage. In addition, when a lithium-ion battery is charged at a low temperature, lithium metal will be dissolved on the anodic oxidation surface of the rechargeable battery, and the whole process is irreversible. This will cause permanent damage to the rechargeable battery and reduce the safety factor of the rechargeable battery. Therefore, many lithium-ion battery equipment will have protective equipment, so that the battery cannot be charged at low temperatures. 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 post: How is the principle of lithium iron phosphate battery protection circuit?