Do you know the effect of low temperature on lithium-ion batteries

Current mobile phone batteries are generally lithium-ion batteries, and the chemical reaction speed of lithium-ion batteries is affected by temperature. If the mobile phone is exposed to low temperature for a long time, the chemical reaction of the battery will be slow, causing the battery discharge current to decrease, reducing the battery capacity, and it may happen that the battery is used up quickly, the screen is black, the machine freezes, the touch screen fails, and the Internet cannot be accessed. When entering a warm room from the cold outside, the temperature change may also cause condensation inside the phone, short circuit of the circuit board or other malfunctions. When you go out in cold weather, try your best to keep your mobile phone fully charged and reduce the running of power-consuming programs such as playing games, watching movies, and listening to music. It is best to put your mobile phone in a relatively warm place such as your pocket or backpack. You can use earphones to make and receive calls. Try to prevent the mobile phone from being directly exposed to cold air. Do not use the phone in a low temperature environment for a long time. After entering indoors from the outside, leave the phone for a period of time and wait for the water mist to evaporate before using it. If the mobile phone has a temporary failure when it is used in a low temperature environment, you can turn it off and suspend use, and then let the phone adapt to a slightly higher temperature environment for a while, and the situation will be improved. The working principle of lithium-ion batteries is that there is a potential difference between the positive and negative electrodes, thereby causing current. In a low temperature environment, the electrolyte moves quite slowly, which affects the transfer activity of lithium between the positive and negative electrodes, resulting in a decrease in battery charge and discharge performance. Simply put, in a low-temperature environment, it is not that the lithium-ion battery is really dead, but that it has electricity but cannot be discharged normally. According to analysis data, the capacity of a normal lithium-ion battery will be reduced by 20% when it is at zero degrees Celsius. When it reaches minus 10 degrees Celsius, the capacity may be only about half. The normal working range of most mobile phone batteries is between 0-35 degrees Celsius. If the temperature is lower or higher than this, it may be abnormal. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete it. Previous article: How to maintain a lithium ion battery that has not been used for a long time?