Long-term storage method of disposable lithium battery and rechargeable lithium battery
As lithium batteries become more and more widely used in our lives, how much do you know about the long-term storage methods of disposable lithium batteries and rechargeable lithium batteries? Let the Xuanli battery introduce you a simple movement!
1. Lithium primary battery
is also called a primary lithium battery. It can be discharged continuously or intermittently. Once the electricity is exhausted, it can no longer be used. Currently, it is widely used in low-power electronic products such as cameras. The self-discharge of lithium primary batteries is very low, and can be stored for 3 years, and the effect will be better if stored under refrigerated conditions. It is a good way to store lithium primary batteries in a cold place. Note: Lithium primary batteries are different from lithium ion batteries. Lithium primary batteries cannot be charged and charging is very dangerous!
2. Lithium ion battery
is also called secondary lithium battery. It can be stored for more than half a year at 20°C. This is because its self-discharge rate is very low and most of its capacity can be recovered. The self-discharge phenomenon of lithium 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 batteries should be recharged every 3 to 6 months, that is, charged to a voltage of 3.8 to 3.9V (the optimal storage voltage of lithium batteries is about 3.85V), and it is advisable to maintain the discharge depth at 40%-60% , Should not be full. The battery should be stored in a dry environment at 4°C~35°C or in moisture-proof packaging. Keep away from heat sources, and don’t place it in direct sunlight. The application temperature range of lithium battery is very wide. It can still be used outdoors in winter in the north, but the capacity will be reduced a lot. If it is returned to room temperature, the capacity can be restored.