Why are batteries not durable in winter?

Maybe many people have encountered this problem when using mobile phones in winter or cold environments. The battery is particularly not durable. It turns out that a mobile phone can carry 8 hours of full load time. Why can it only be used for 6 hours in winter? In winter, If students with iPhones stay outside for half an hour, they will feel cold. The following Anhui lithium battery manufacturers will answer this question for you. In the cold, the battery capacity drops! Generally speaking, the battery capacity of our mobile phones, such as 3000 mAh, is only a theoretical value. It is usually measured under ideal conditions at 25°C. In fact, battery capacity is largely affected by temperature. The following is the working principle of a lithium battery: This is actually a chemical reaction. Charging: Lithium ions escape from the positive electrode lattice, reach the negative electrode through the electrolyte, and are embedded in the negative electrode graphite lattice. The remaining electrons reach the positive electrode from the external circuit and discharge: Lithium ion From the graphite lattice to the cathode polymer lattice, you know the rate and temperature of the chemical reaction. The higher the temperature, the more intense the reaction, and the lower the temperature, the slower the reaction. Electrolyte is a pond reaction. Different media have different reactions and different performance risks. Do you remember Samsung explosives? Liquid electrolytes, liquid electrolytes and solid electrolytes are currently available, of which liquid electrolytes and gel electrolytes have certain Security Risk. Having said so much nonsense, I haven't got the point yet. High school physics has always asked us to find the internal resistance of the battery. I don't know how many people will now. The physics teacher sees qi and vomits blood. Anhui Lithium Battery Processing Company summarized the reasons for battery instability in winter: the temperature in winter is low, the chemical reaction of the battery itself is slow, and the power supply capacity is low; in winter, when the temperature is low, the internal resistance of the battery becomes larger. When the battery consumes the same current, the reduced voltage becomes more pronounced. Battery aging is more obvious. 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: The basic composition of electric vehicle power lithium-ion battery