Lithium-ion batteries do not need more than 10 hours to charge and activate

f you buy a new phone or laptop, do salespeople often tell you to charge your phone or computer for more than 10 hours before you go home for the first time to activate the battery? Is that right or not? With the spread of knowledge about lithium-ion batteries, many people should know the answer. No, this is the traditional saying of nickel-metal hydride batteries. But do you still have a question: doesn't the new lithium-ion battery need to be activated? The following will reveal the mystery.

First, the answer to the question of whether lithium-ion batteries need to be activated is yes. But the activation of the new lithium-ion battery is not the responsibility of the user, but the manufacturer completed this process before it was delivered. We know that lithium-ion batteries are composed of positive poles and electrolytes, and that positive poles and negative poles can work better only after they are fully moist in the electrolyte. Therefore, the activation problem of lithium-ion batteries is mainly to make electrodes in the electrolyte. Fully moisten, To get the best job possible.

The specific process is as follows: the lithium ion battery shell indoctrinate the electrolyte -- the seal -- into a constant pressure charge, and then discharge, so that several cycles are carried out, so that the electrode is fully penetrated and the electrolyte is fully activated until the capacity reaches the required level. This is the activation process-The capacity, In other words, after the factory, lithium ion batteries have been activated to the user's hand. However, since the battery is from the factory to the user's hand, there is a period of circulation in the market, ranging from a few months to a year or two. Therefore, after the user gets the battery, the battery should be fully charged and discharged several times to make the battery work. The best state. However, the complete charge and discharge here does not require more than 10 hours of charging. Instead, the battery indicates that the battery needs to be charged and then the charging process ends after filling. In addition, lithium-ion batteries must not be overcharged and overcharged, otherwise it will greatly reduce the service life of the battery.

Fig. 1 Lithium-ion batteries

Here's an extension of the true and false lithium-ion battery: first, the battery you buy looks at the length of its standby time. The actual battery should be the same as the logo on the manual, and the fake one is only half. It is generally assumed that the core is made of used battery cores and assembled in new packaging. Therefore, standby time is greatly reduced; Secondly, looking at the weight of the battery, because the current lithium ion battery is generally composed of several batteries similar to the size of No. 5 or No. 7 equipped with a switch device and a protective circuit, it has a certain weight, and the lithium battery core is generally 900mAh. 35g, Therefore, if the battery plus switch equipment and circuit devices are less than 35g, it is likely to be false; Thirdly, from the perspective of the appearance of the battery, the original battery generally has the following characteristics. The battery label adopts secondary printing technology. In a certain light, from the slope, the color of the bar code part is significantly darker than that of the other parts. And feel it with your hand, it feels more convex than the other parts. The surface of the real battery is white, crossed with metal, and there are traces of pencil strokes. Battery cases are generally made of special materials, are very strong, easy to damage, and are generally not easy to open battery cases. The appearance of the battery is neat and there are no unnecessary burrs. The outer surface has a certain degree of roughness and comfortable feel. The inner surface feels smooth, and the vertical scratches can be seen under the light. In addition, there are many features that can distinguish between true and false, and they will not be repeated here.

In summary, lithium-ion batteries have been activated before they are shipped. We do not need to activate for more than 10 hours of continuous charging. We only need to charge and discharge the battery normally. Do not overcharge and over discharge to make the battery function best.

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