About PD power adapter, some secrets you don't know

I believe that everyone must have used the PD power adapter to charge the mobile phone. In recent years, the topic of mobile phone fast charging has become very popular. Some mobile phones with a asking price of 1,000 yuan support fast charging technology. Join if you can’t beat it. Even Curry, who has always insisted on Wufu Yian, has begun to adopt 20WPD fast charging. It can be said that now is the era of fast charging for all. It is no longer a dream to charge for 5 minutes and talk for two hours. Fast charging seems to be possible with just a PD charger. But about fast charging, there are some little secrets that you don't know.
When those big and small mobile phone manufacturers talk about fast charging, why don't they mention battery life? Because no matter what kind of PD power adapter is used, it will affect the normal service life of the battery. Whether it is Qualcomm's QC3.0/QC4.0 or PE, PD fast charging, these fast charging technologies are nothing more than high voltage, low current and low voltage. High current, but these are interface technologies. Fast charging must ultimately be achieved with a high current, but high current charging is harmful to the battery.
Because when the current increases, a semipermeable membrane on the surface of the negative electrode of the electrode will be broken to a certain extent, causing the electrode material and the electrolyte to react with each other. In addition, the increase in temperature will also cause side reactions inside the battery to destroy the chemical substances on the battery. , leading to a reversible reduction in battery capacity will continue to decrease. If you are using a PD power adapter to charge your mobile phone, compared to charging with a normal charger, after a long time, you will feel that the power consumption of the PD fast-charged mobile phone is much faster than the normal one, which means that the capacity of the battery is reduced.
Although there are some devices equipped with fast-charging mobile phones with improved battery materials and designs, this kind of battery loss is still unavoidable. Only by improving the performance of the battery can it withstand high charging rates. However, because of the current fast charging, there are some agreements between the fast charging mobile phone and the PD power adapter, and they will try their best to protect the battery in the fast charging mode. For example, when we use the PD power supply to fast charge the Apple, we will find that when the power of the mobile phone reaches about 70%, the charging rate will slowly decrease, which is also a means of protecting the battery. Although fast charging technology will cause some damage to the battery, in general, the advantages outweigh the disadvantages. After all, our time is more precious than the life of the battery.