Have you considered the feeling of the mobile phone battery?

Many people find that after some days of use, the battery of the mobile phone is charging faster and faster, and the standby time is getting shorter and shorter. In order to make your mobile phone battery more durable, many people choose to turn to the network and follow the tips on how to extend battery life. Can you know? Many charging methods on the Internet are wrong, and you have been pitted for so many years.

After the battery is completely drained, recharge it?

No! "Deep discharge" can damage the battery

In the past, there was a saying that the battery has a memory function. You must wait until the phone battery is completely drained before charging the phone to 100%. Otherwise, the battery will “remember” the proportion of the battery that needs to be charged, so that the battery needs to be charged before it is used. And the charging will not be full.

"Now the smartphones are all using lithium-ion batteries. The technology and structure of lithium batteries have undergone tremendous changes. It is wrong to recharge the battery after the battery is completely exhausted." New Energy Power Battery Leading Enterprise, Tianneng Lithium Battery Development Engineer Wang Yonggang told the Science and Technology Daily reporter that the so-called "deep discharge" of exhaustion of electricity may have an irreversible effect on the internal material structure of the battery and shorten the battery life.

When charging, positive lithium ions "jump" into the electrolyte from the positive electrode, "crawling" through the curved hole in the diaphragm, "swim" to the negative pole, and combine with the electrons that run from the positive electrode early; in contrast. Dr. Zhang Hua, who graduated from the Department of Materials Science and Engineering at the University of California, Los Angeles, made an analogy: whether it is discharging or charging, lithium ions have to get out of the original structure, a bit like moving a pile of things from one room to another. room. Therefore, the understanding of battery life should be based on the understanding of the battery structure.

That is to say, during the charging and discharging process, the less lithium ions involved in the movement each time, the less damage to the structure; the slower the lithium ions participating in the movement, the less damage to the structure. If the lithium ion runs almost the same, it will be "deeply discharged", and the lithium ions will continue to be extracted from the inside, which will damage the battery.

Do you want to end charging immediately?

No need! The battery has "overcharge protection"

When the network is charging the mobile phone, the battery will be charged immediately after the battery is charged to 100%, otherwise it will damage the battery life.

In this regard, Wang Yonggang said that there is no need to worry too much. Lithium batteries generally have "overcharge protection". When the battery is fully charged, it will automatically convert to trickle charge, that is, the charge is very slow and the current is very small. When the battery is fully charged, it will automatically power off. Will continue to overcharge, so a single rush to 100% will not have much impact.

Many people like to charge their mobile phones for one night before going to bed. In this regard, Wang Yonggang said that when the mobile phone is turned on at night, there will be power loss, and how much power is consumed, the charger will continue to fill the mobile phone with a small current. “However, cycling for so long will have an impact on battery life.”

Sporadic charging can damage the battery?

error! "Shallow filling and shallow release" is good for the battery

"The life of a typical lithium-ion battery can reach several hundred charge-discharge cycles. The charge-discharge cycle here refers to the process of charging the battery after it is used up, instead of the battery being plugged in and then unplugged." Wang Yonggang said Lithium-ion battery is “shallow-filled and shallow-discharged”, that is, it is charged at a sporadic time, so that the structure of the positive and negative materials is less affected, and the life is not affected. "So, we usually emphasize that the charge and discharge of lithium-ion batteries should be shallow and shallow, and do not challenge the 'limit' of the battery." Zhang Hua said.

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These practices also affect battery life

Charging different types of mobile phones with non-original chargers has their own matching chargers. With non-original chargers, the current of the chargers used may be too large, which may have an irreversible effect on battery performance.

While charging, using a mobile phone to make calls, play games, watch videos, etc., is a large current consumption. The current supplied by the charger is less than the current consumption of the mobile phone. While charging, the mobile phone needs to output current from the battery. That is to say, at this time, the battery is not being charged, but is being discharged, and even the battery capacity is quickly "depleted". The life of a lithium battery is closely related to the number of charge and discharge cycles. When using a mobile phone while charging, the battery is quickly switched between charging and discharging, which will affect the battery life.