If you buy a new mobile phone or a new laptop, does the salesperson often ask you to charge the mobile phone or computer for more than 10 hours to activate the battery before going home for the first use? Is this statement correct? With the popularization of lithium-ion battery knowledge, many people should know the answer. No, this is the traditional Ni-MH battery. But do you still have a question: Does the new lithium-ion battery need not be activated? The following will reveal the answer to this mystery.
First of all, the answer to the question about whether the lithium ion battery needs to be activated is yes. However, the activation of the new lithium-ion battery is not the responsibility of the user, but the manufacturer completes the process before leaving the factory. We know that lithium-ion batteries are composed of positive and negative electrodes and electrolyte, and the positive and negative electrodes can only work better when they are fully wetted in the electrolyte. Therefore, the activation problem of lithium-ion batteries is mainly to make the electrodes fully in the electrolyte. Wetting to achieve the best working condition.
The specific process is as follows: the lithium ion battery case is filled with electrolyte-sealed-formed, that is, constant voltage charging, then discharging, and so on for several cycles, so that the electrode is fully immersed in the electrolyte and fully activated until the capacity reaches the required value. This is activation Process-capacity separation, which means that the lithium-ion battery is already activated in the user's hands after leaving the factory. However, since the battery is in the market for a period of time from the factory to the user, ranging from several months to one or two years, the user should charge and discharge the battery several times after receiving the battery to make the battery reach The best working condition. However, the complete charging and discharging here does not require more than 10 hours of charging, but when the battery indicates that it needs to be charged, the battery is charged, and then the charging process ends when it is fully charged. In addition, lithium-ion batteries must not be overcharged or overdischarged, otherwise the service life of the battery will be greatly reduced.