Operating temperature range of conventional lithium batteries

The working temperature of conventional lithium battery: -20℃~60℃, but generally below 0℃, the performance of the lithium battery will decrease, and the discharge capacity will also decrease, so the performance of the lithium battery is generally 0~40℃ . The temperature of lithium batteries varies with the environment, and some batteries have operating temperatures as high as hundreds of degrees Celsius. Generally speaking, polymer batteries whose operating temperature is lower than -20°C are called low-temperature polymer batteries. Low-temperature polymer batteries are divided into ordinary low-temperature polymer batteries with a minimum operating temperature of -40°C and ultra-low-temperature polymer batteries with a minimum operating temperature of -55°C. Generally speaking, the better the low temperature performance of the low temperature polymer battery, the worse the high temperature performance. These two requirements are contradictory. At present, many lithium battery companies have developed a low temperature battery with a wide temperature range of -40°C to 70°C, which is mainly used in products with special requirements such as automotive electronic equipment. For charging requirements, lithium batteries must be above 0°C, otherwise they will be charged frequently and the battery will be damaged quickly and there will be safety issues. The discharge is generally at -20~60°C. The battery is very sensitive to temperature during use. Currently, the operating temperature of lithium batteries is between -20°C and 60°C. Take lithium iron phosphate with the highest permeability in my country as an example. It becomes difficult to charge at sub-zero temperature. After charging, its capacity retention rate at 0°C is about 60~70%, and at -10°C it is 40~55%. , 20~40% at -20℃. However, when the ambient temperature of the battery exceeds 60, the lithium battery has the risk of overheating, burning and explosion during operation. Disclaimer: Some pictures and content of articles published on this site are from the Internet, please contact to delete if there is any infringement.