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Author ：Iflowpower – Portable Power Station Supplier
The battery needs to be resolved, but this is not what the user wants, but the lithium-ion battery plus manufacturers must do, why? Because the lithium-ion battery is in the factory in the factory: the new mobile phone battery lithium-ion battery shell instills the electrolyte sealing - constant, then the constant voltage is charged, then discharge, so that the electrode is sufficient to infiltrate the electrolyte, sufficient activation, With the capacity to reach the requirements, this is an activation process - the points, that is, the capacity of the detection battery is selected to classify different performance (capacity) for classification, dividing the battery level, performing capacity matching, etc. Thined lithium ion batteries to users The hand is already activated. The commonly used nickel-cadmium batteries and nickel-hydrogen batteries are also produced in the future.
Some batteries are activated, and the battery is in the open state. After activation, then the sealing, this process is only possible Make a lithium-ion battery cell plus manufacturer to do. There is a problem here, that is, the battery factory factory is shipped to the user.
This time is sometimes very long, short for 1 month, long for half a year, this time because of the battery The electrode material will passivate, so the manufacturer suggests that the battery is preferably used for 35 fully charge and discharge processes to eliminate the passivation of the electrode material to achieve the maximum capacity. Three related nickel-hydrogen batteries issued in 2001. Nickel-cadmium batteries In the national standard of lithium ion batteries, the initial capacity test has clearly defined, and the battery can be carried out 5 times, and when there is a regulation, the experiment will stop.
This is a good explanation. This phenomenon. So, the second activation is also possible.
The new battery used by the user is as deep as much as possible. This problem is the battery activation problem in the tightness, and the factory battery to the user The upper electrode passivation phenomenon is 3 times in order to activate the battery. In fact, this problem is transformed into a deep charge to charge 12 hours.
Then my other articles on the mobile phone battery's charging time has been answered This question is. The answer is not charged 12 hours. Early mobile phone nickel-hydrogen batter batteries must reach the most perfect full of full fill because of the supplement and trickle charging process, but should not be about 12 hours.
The constant current constant pressure charging characteristics of the lithium-ion battery determine its deep charge time without 12 hours. Since there is a person in the lithium-ion battery, since the current of the lithium ion battery during the constant pressure phase gradually decreases, whether it is small When it is infinite, it is a real deep charge. I used to draw the current curve of the constant pressure phase, and the curve is combined with it.
It is found that this curve can be proximally related to zero. Due to the actual detection, this zero current is never arrived because the lithium-ion battery itself is never arrived. Taking a battery of 600mAh as an example, set the current of 0.
01c (ie 6mA), its 1C charging time does not exceed 150 minutes, then set up as at 0.001c (ie 0.6mA), its charging time may be 10 hours–This is not accurately obtained because of the problem of instrument accuracy, but the capacity obtained from 0.
01C to 0.001C is calculated only 1.7mAh, and for more than 7 hours of use, this is only three thousandths of the capacity.
There is no practical meaning. What other, there are other charging methods, such as pulse charging methods to reach a limit voltage of 4.2V, which does not have the minimum current judgment phase, which is generally 100% filled after 150 minutes.
Many mobile phones are used in a pulse.
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