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5 Factors Affecting the Life of Lithium Batteries
751 2022-09-19
Lithium-ion batteries are widely used in electric vehicles, model aircraft, stabilizers and other equipment due to their high energy density, long cycle life, moderate manufacturing cost, and low environmental pollution. What are the five major factors that affect the life of lithium batteries?
1. The ambient temperature
Lithium batteries are afraid of cold and heat, so try not to use them in harsh environments. The migration rate of lithium ions in the electrolyte and the electrode sheet is closely related to the temperature. Overheating or undercooling will affect its movement rate. In practical applications, the operating temperature of lithium batteries is between 5°C and 35°C. Therefore, users in the north should store lithium batteries at home as much as possible in winter, and do not put them outdoors. Users in the south should avoid exposure to the sun in summer.
Second, the length of charging time
Many friends like to continue to charge the battery for another hour as a "supplement" after the battery is fully charged, because they think that the longer the charging time, the more full the battery will be. In fact, this method may reduce the life of lithium batteries, and even cause safety accidents in severe cases! Correct way: unplug the power immediately after charging!
3. The length of discharge time
Nowadays, many young people often wait until the mobile phone has only one or two bars of power left, or even run out of power, and then use it to recharge it, which will cause great damage to the battery. Since the lithium battery has no memory function, it can be charged when the discharged power exceeds 80-90% of the battery capacity, and it is not necessary to recharge after deep discharge.
4. Whether the charger matches
A matching charger is also very important. The use of brand-name chargers or unsuitable fast chargers will not only affect the service life of the lithium battery itself, but will also cause an explosion due to damage to the diaphragm due to overheating.
5. Storage method
For lithium battery products that are not used for a long time, the voltage should be guaranteed to be around 3.7V, and the power should be maintained between 40% and 60%. In this range, the performance of lithium batteries is relatively stable.