Analysis of influencing factors of lithium battery life

According to the research statement, it is found that the number of recharges is related to the depth of discharge. The deeper the depth of discharge of a lithium battery, the fewer the number of recharges. The researcher came up with a calculation formula as the number of rechargeable times * depth of discharge u003d the number of completed charging cycles. The higher the total number of completed charging cycles, the higher the battery life, that is, the number of recharges * depth of discharge u003d actual battery life. But the ideal formula is obtained without calculating other factors. Lithium battery influencing factor 2: overcharge, overdischarge, and large charging and discharging currents. During the use of power lithium batteries, we must be wary of overcharging the battery. Any form of overcharging of lithium batteries will cause serious damage to battery performance. , And even an explosion. Beware of deep discharge below 2V or 2.5V, because this will quickly and permanently damage the lithium battery pack. Internal metal plating may also occur, which can cause a short circuit, making the battery unusable or unsafe. However, most lithium battery packs have electronic circuits inside the battery pack. If the battery voltage is lower than 2.5V, exceeds 4.3V during charging or discharging, or if the battery current exceeds a predetermined threshold, the electronic circuit will disconnect the battery. Protect the battery, beware of danger. Influencing factor 3: Overheating or undercooling is well known, and temperature has a greater impact on the life of lithium batteries. The sub-zero environment may cause the lithium battery to burn out when the electronic product is turned on, and the overheated environment will reduce the battery capacity. Therefore, if the notebook is used for a long period of time without removing the battery from an external power source, the battery will remain in the high heat discharged from the notebook for a long time and will soon be scrapped. 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 post: Comparative analysis of lithium battery pack and lead-acid battery pack