Precautions and matters for storage of lithium-ion batteries

Storage of lithium-ion batteries: The self-discharge of lithium primary batteries is very low and can be stored for 3 years. If stored under refrigerated conditions, the effect will be better. It is a good way to store lithium primary batteries in a cold place. Lithium-ion batteries can be stored for more than half a year at 20°C because of their low self-discharge rate and most of the capacity can be recovered. The self-discharge phenomenon of lithium-ion batteries, if the battery voltage is kept below 3.6V for a long time, it will cause the battery to over discharge and destroy the internal structure of the battery, reducing the battery life. Therefore, long-term storage of lithium-ion batteries should be recharged every 3-6 months, that is, charged to a voltage of 3.8-3.9V (the best storage voltage of lithium-ion batteries is about 3.85V), and it is not suitable to be fully charged. The application temperature range of lithium-ion batteries is very wide. It can still be used outdoors in winter in the north, but the capacity will be much lower. If it is returned to room temperature, the capacity can be restored. Precautions Lithium primary battery: Unlike lithium-ion batteries, it cannot be charged and it is very dangerous to charge. Other precautions are equivalent to lithium-ion batteries. Maintenance instructions: The charging voltage must not be higher than the high charging voltage, and the working voltage must not be low when discharging. The lithium-ion battery should be kept above the small working voltage at any time. Overdischarge or self-discharge reaction of low voltage will cause the decomposition and destruction of lithium ion active materials. , It may not be possible to restore. Any form of overcharging of lithium-ion batteries will cause serious damage to battery performance and even explosion. Lithium-ion batteries must be prevented from overcharging during the charging process. Do not often deep discharge and deep charge. However, after about 30 charging cycles, the power detection chip will automatically perform a deep discharge and deep charge to accurately assess the battery's status. To prevent high temperature, it may shorten the life span, or cause an explosion in severe cases. If possible, store in the refrigerator. If the notebook computer is using AC power, please unplug the lithium-ion battery bar to avoid being affected by the heat generated by the computer. Prevent freezing, but the freezing point of most lithium-ion battery electrolyte solutions is -40°C, which is not easy to freeze. If you don't use it for a long time, please store it with a charge of 40%~60%. When the battery level is too low, it may be over-discharged due to self-discharge. Since the lithium-ion battery will naturally age when not in use, it should be purchased according to the actual quantity, not excessive purchase. 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: Briefly describe the current status of electric vehicle battery technology