Will fast charging technology harm the battery?

By huanggs
I believe that the mobile phone has become the favorite of most people nowadays, and if the power of the mobile phone drops below 20%, you will probably have some bad emotions, such as restlessness, after all, it seems that you have not brought your mobile phone with you when you go out. Just like wallets, mobile phones are easy to run out of power and become the object of everyone's anxiety nowadays. Mobile phone manufacturers naturally understand this, so they respond to the needs of the majority of users. After all, users are the fundamental. Without users, who would buy mobile phones? Therefore, the fast charging function came into being. It is not an exaggeration to say that fast charging is the greatest invention in recent years. Many people will never go back after using fast charging. This technology has been adopted, but another problem has arisen at this time. What is in front of people today may not be how fast the charging speed of mobile phones is. After all, Xiaomi has developed 100W fast charging, and 40W fast charging can be seen everywhere. Wireless charging has achieved 20W, and now even a thousand yuan Phones are starting to use fast charging technology. Under normal circumstances, the use of these once high-end technologies in thousand yuan phones can only show that their costs have been reduced, so these technologies can be popularized. And when the number of users increases, there will be another problem. The chargers that everyone used to use are basically 5V1A specifications. Not to mention Apple, 1A chargers have been used for several generations, but in the era of fast charging, the charging of various parameters With all the devices, consumers will inevitably have doubts at this time, will the parameters become larger, will it damage the battery? After all, the batteries of mobile phones today cannot be replaced, unlike the past. Here we will introduce several major directions of fast charging technology today.View more details:48v 200ah lithium battery Nowadays, there are two main ways to increase the charging speed, which are also the two major directions today:
  1. Increase the voltage. Increasing the voltage requires higher quality of the charger. During the charging process, the charger will generate a lot of heat, so if the charger does not meet the standard, it may be dangerous.
  2. Increasing the current means reducing the voltage to increase the current, but high current also has disadvantages, for example, it will accelerate the aging of the battery and bring certain safety hazards, and high current will also cause damage to the chemical substances inside the lithium battery. Irreversible loss, but it is also beneficial, that is, low heat generation, it depends on how the manufacturer balances the relationship between them.
But fast charging technology, all need to meet three conditions, that is, three indispensable links: charger, battery, chargeIC. The fast charging technology that increases the current usually requires additional customization of the charging line, because the current is large, and there is no certain standard specification, which will cause harm to the human body. At present, the fast charging technology of mobile phones is mainly divided into the following three categories:
  1. VOOC technology, its core is low voltage and high current.
  2. Qualcomm QuickCharge technology, its core is high voltage and low current.
  3. MediaTek PumpExpressPlus technology, which allows the charger to determine the voltage according to the current, which can be dynamically adjusted.
So in the final analysis, will this mobile phone fast charging technology affect the life of the battery? In fact, you can think about it, combining the two directions mentioned above, increasing the charging voltage or current to increase the charging speed. In fact, when the charging current increases, the material on the surface of the negative electrode of the battery will rupture. This material is called a semi-permeable membrane. It will rupture slightly, but the result is that the internal material will react, so it will cause irreversible loss. However, increasing the voltage will also increase heat generation, which is also the biggest killer of lithium batteries and will reduce the activity and capacity of the battery.Also read:48v lithium ion battery 200ah However, you don’t need to be pessimistic about this, or you don’t use fast charging because of this, or even use slow charging for your fast charging mobile phone, let’s not talk about the life of the battery itself. The damage caused by the battery, after all, cannot meet the charging standards of mobile phones, and the IC chip will naturally have to make different adjustments, so the battery is originally a consumable, and the lifespan of smart phones on the market today is very long, and the lifespan is generally at least 500 charging cycles, as long as we can pay attention to developing correct charging habits, it is completely possible to use it for about two years. After all, lithium batteries have existed for many years, and the technology accumulation is in place, and it will not break down soon.