The significance of the emergence of fast charging technology for lithium battery technology

Looking at the changes in mobile phones over the past few years, mobile phone screens are getting bigger and bigger, from 3 inches to 6 inches, the resolution is getting higher and higher, and the CPU of mobile phones is from single core to eight cores, but the progress of battery technology is not very Big, mobile phone life is currently a shortcoming in the development of mobile phones. The emergence of fast charging technology temporarily solves the shortcomings of lithium battery technology.

At present, it is an effective method to increase the battery capacity from the hardware side to increase the battery life. The chip of the mobile phone is getting smaller and smaller, but the size of the battery is really difficult to compress. Therefore, under the current technical conditions, mobile phone battery technology is difficult to make a revolutionary breakthrough in a short time. Therefore, the emergence of fast charging technology solves the urgent need.

What is fast charge?

To understand this problem, we should first look at the charging principle of the battery. During the charging and discharging process of the battery, the cathode and the anode release and absorb ions. The oxygen generated by these positive electrodes can be absorbed by the negative electrode through the diaphragm and the gas chamber, and the entire chemical reaction forms a cyclic reaction form, which is a simple charging process.

What is the difference between Qualcomm/OPPO/MediaTek's three-package fast charge? Is there any harm to the battery?

The three basic ways to realize fast charging of mobile phones are: constant voltage, increase current; constant current, increase voltage; voltage and current are improved. But to really achieve fast charging, not only to improve current and battery, fast charging technology is a complete system, including fast charge adapter and intelligent power management system. This is like pouring water into a pool. Increasing voltage and current is like increasing the speed of water flow and the amount of water per unit time. When the parameters are increased, the speed of filling the water (full charge) will also be significantly improved.

Currently, mobile phone factions that can achieve fast charging include oppo, Qualcomm, and MediaTek. OPPO is to improve the battery and interface of the mobile phone, increase the contact pin interface of the battery; Qualcomm is to add the power management module that supports fast charging to the Soc (processor) to achieve fast charging; MediaTek's Pump Express fast charging technology is Pump Express.

The innovation of mobile phone battery technology is imperative, but the advancement of technology still takes time. The emergence of fast charging technology has delayed the pressure on the battery life of mobile phones. In a short period of time, fast charging is an effective way to solve the problem of poor mobile phone life. When the battery technology has a breakthrough fast charge will also help its better development.

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