What are the common problems of 14500 lithium battery?

3 common problems of 14500 lithium battery: 1. 14500 size purchase problem. Since the voltage of the lithium battery is (2.5V---3.7V), overdischarge or overcharge will damage the battery, so the battery with a protective plate can protect the battery. I don’t think so, because the 14500 battery with a protective plate is a few mm higher than the ordinary No. 5 battery, some cameras can’t be covered, and the battery contacts of the camera can be affected. The elasticity will be affected after a long time. Dropping will cause poor contact. Another protection board can't exert the energy efficiency of the battery. Since the protection circuit is automatically powered off at 2.5V, the camera will suddenly be powered off and will not automatically shut down, which may cause damage to the camera. 2. The 14500 capacity over-discharge problem has some details in the *voltage general question without the protection board: *The voltage range of the camera, the general camera voltage is 2.4V to 4.2V, so the camera will often go down when the voltage reaches 2.4V. When shutting down, the camera has a choice of battery type (alkaline, nickel battery, lithium battery), the shutdown voltage is different for different battery types, as long as the lithium battery is selected, its shutdown voltage is 2.6V. The 2.5V battery without a protection board is a safe voltage, so there is no over-discharge problem, and it can also exert battery* energy efficiency. (According to your own camera decision) 14500 lithium battery 3.14500 capacity overcharge problem After the lithium battery cell is overcharged to a voltage higher than 4.2V, side uses will begin to appear. The higher the overcharge voltage, the higher the risk. After the voltage of the lithium battery cell is higher than 4.2V, the number of lithium atoms remaining in the positive electrode material is less than half. At this time, the cell often collapses, causing a permanent decrease in battery capacity. If you continue to charge, since the storage cell of the negative electrode has been filled with lithium atoms, subsequent lithium metal will accumulate on the surface of the negative electrode material. These lithium atoms will grow dendrites from the surface of the negative electrode toward the direction of the lithium ions. These lithium metal crystals will pass through the separator paper and short-circuit the positive and negative electrodes. Sometimes the battery explodes before the short circuit occurs. This is because during the overcharging process, the electrolyte and other materials will crack and produce gas, which makes the battery shell or pressure valve swell and rupture, allowing oxygen to enter and react with the lithium atoms accumulated on the surface of the negative electrode. And then exploded. Therefore, when charging a lithium battery, the upper limit of the voltage must be set so that the battery's life, capacity, and safety can be taken into account at the same time. *The ideal upper limit of charging voltage is 4.2V. There is also a lower voltage limit when discharging lithium batteries. When the cell voltage is lower than 2.4V, some materials will begin to be destroyed. Also, because the battery will self-discharge, the longer it is left, the lower the voltage will be. Therefore, *do not stop when the battery is discharged to 2.4V. During the period when the lithium battery is discharged from 3.0V to 2.4V, the energy released only accounts for about 3% of the battery capacity. Therefore, 3.0V is an ideal discharge cut-off voltage. When charging and discharging, in addition to the voltage limit, the current limit is also necessary. When the current is too large, lithium ions will not have time to enter the storage cell and will gather on the surface of the material. 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: What are the factors that affect the service life of UPS maintenance-free batteries?