What are the basic misunderstandings of lithium battery charging for the first time?

What are the basic mistakes of the first charging of lithium batteries? Myth 1: Do you want to activate the mobile phone battery for the first charge? First of all, this sentence itself is a problem. Just imagine that you bought a mobile phone and the power bank is not activated. So why should you buy these with power supply? That's because the test number has been activated before leaving the factory. So don't activate. In fact, the sentence of the first three charging for 12 hours is obviously a continuation of the early nickel batteries (such as nickel cadmium and nickel metal hydride). Modern industry has turned to lithium batteries, which have very different characteristics from nickel batteries. So you just charge it and unplug it as usual. Early nickel-cadmium rechargeable batteries and nickel-metal hydride rechargeable batteries attacked a phenomenon called the memory effect. When charging in an incompletely discharged state, the battery is overcharged, which will cause the growth of crystals on the electrode plate for a long time, blocking the electrolyte and the The contact of the electrodes causes the voltage of the battery to drop, causing the user to attack the battery and quickly run out. Misunderstanding 2: The battery must be used up before it can be charged? Will overcharging cause the battery to burst? Lithium batteries have high energy density and high voltage (the voltage of lithium batteries before the onset alone can reach 4.2V, and ordinary nickel-based rechargeable batteries are 1.2V) , The oxidation-reduction reaction with low-voltage batteries and lithium battery electrodes is very serious, so the use conditions of lithium batteries must be strictly limited, overcharging, overdischarging and short-circuiting, high temperature can cause cell damage, and even fire and explosion attacks. However, in practical applications, lithium batteries encapsulate multiple batteries in a panel, and are equipped with a set of safety maintenance circuits and various safety devices. These safety designs ensure that the circuit of the battery is automatically blocked in the event of overcharge, overdischarge and short circuit; excessive internal pressure of the battery will also trigger the decompression of the exhaust device; overheated battery will trigger the hot melt maintenance device to prevent the movement of lithium ions, Then stop the electrochemical reaction of the battery. Therefore, as long as you do not use counterfeit batteries of unreliable quality, the battery will not burst if the phone is fully charged and the plug is not unplugged in time. Misunderstanding 3: The battery can extend battery life by reducing the number of recharges? Digital equipment manufacturers can charge hundreds of times of charge. In fact, this is an environment detected in deep discharge, that is, the battery is fully charged and used up. Then charge, this cycle, continuous deep discharge has an impact on the battery. 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: The emergence of new lithium batteries solves the shortcomings of traditional lithium batteries that explode and catch fire