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release time:2023-02-21 Hits: Popular:AG11 battery
Trust now that mobile phones have become the favorite of most people, and if we drop the power of mobile phones to less than 20%, we will probably have some bad mood, such as fidgeting and so on. It is just like going out without a wallet. The simple lack of power of mobile phones has become the object of our simple anxiety. Mobile phone manufacturers naturally understand this, and all of them meet the needs of a wide range of users, After all, users are the bottom line. Who will buy mobile phones without users? So the fast charging function came into being, and it can even be said that the fast charging is the greatest creation in recent years. Many people can't go back after using the fast charging. Now the 1000 yuan machine starts to be equipped with this skill as standard, but another problem appears at this time.
What people are facing now may not be how fast the charging speed of mobile phones is. After all, Xiaomi's 100W fast charging has been developed, and 40W fast charging can also be seen everywhere. Wireless charging has reached 20W, and now even 1000 yuan mobile phones are beginning to use fast charging skills. Under normal circumstances, the use of these former high-end skills by the thousand-yuan machine can only show that its cost has been reduced, so these skills can be spread everywhere. There will be another problem when the number of users increases. The chargers we used in the past are all 5V1A specifications, let alone Apple, 1A chargers have been used for several generations, but in the era of fast charging, chargers with various parameters are available. Customers will inevitably have questions at this time, will the parameters become larger, and will damage the battery? After all, mobile phone batteries can't be replaced now, unlike before. Here we will introduce the main directions of fast charging skills.
Now there are two ways to improve the charging speed, which are also the two main directions:
1. Progressive voltage. Progressive voltage has higher requirements for the quality of the charger. The charger will generate a lot of heat during charging, so if the charger is unqualified, there may be risks.
2. Progressive current means to reduce the voltage to improve the current. However, large current also has disadvantages. For example, it will accelerate the aging of the battery and bring certain potential safety hazards. Moreover, large current will also cause irreversible loss of the chemical substances inside the lithium battery, which is also advantageous. It is low heat. It depends on how the manufacturer balances the relationship.
However, fast charging skills all need to meet three conditions, which are the indispensable three links: charger, battery and chargeIC. In general, the charging line needs to be rated and customized to improve the fast charging skills of current. Due to the large current, there is no certain standard specification, which will cause harm to human body.
At present, the fast charging skills of mobile phones are mainly divided into the following three categories:
1. VOOC skill, its center is low voltage and high current.
2. The core of Qualcomm QuickCharge technology is high voltage and low current.
3. MediaTek PumpExpressPlus technology, which allows the charger to determine the voltage according to the current, can be dynamically adjusted.
In the final analysis, will this mobile phone fast charging technology affect the battery life?
In fact, we can think about how to improve the charging speed by improving the charging voltage or current in combination with the two directions mentioned above. In fact, when the charging current increases, the material on the surface of the negative electrode of the battery will break. This material is called semi-permeable membrane, which will break slightly, but the result is that the internal material will react, so it will form irreversible loss. However, improving the voltage will also increase the heat, which is also the biggest killer of lithium batteries, and will reduce the battery's activity and capacity.
However, we don't have to be pessimistic about this. Maybe we don't use fast charging, or even use slow charging for our fast charging mobile phone. Let's not talk about the life of the battery. In fact, many times when you use slow charging, it will damage the battery. After all, if it doesn't meet the charging standard of the mobile phone, the IC chip will naturally make different adjustments, so the battery is originally a consumable, And now the life of smart phones on the market is very long. Generally, the life is at least 500 charging cycles. As long as we can pay attention to the correct charging habits, it is also possible to use it for about two years. After all, lithium batteries have existed for many years, and the skill accumulation is in place, which will not appear to be broken soon.
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