Why can't the phone battery increase capacity?
Today, with the rapid development of science and technology, all kinds of science and technology that we never thought of have gradually appeared around us. But for the mobile phone industry, which is also developing with the same development, although the configuration is getting higher and higher, the performance is getting stronger and stronger, and the development of mobile phone battery seems to be a problem. So many years still stay at around 3000mAh.
Speaking of the problem of mobile phone battery, many intelligent computer users are also very concerned about it. After all, there is a one-day charging phenomenon for smart phones currently on the market. For those who use frequently, they even need to charge two times a day or even multiple times. Is it really that the battery development has encountered a bottleneck, and there is no good solution for major manufacturers?
Three mobile phone battery types
Nickel-cadmium batteries are used in the earliest mobile phones. Nickel-cadmium batteries have a serious memory effect. They must be fully charged before they can be fully charged. Otherwise, the battery will be shortened for use, and the cadmium is poisonous. The nickel-cadmium battery is in use. It will also deform after heat for a long time.
Early mobile phone battery (picture cited from Baidu)
Since then, nickel-metal hydride batteries have been used in mobile phones. Compared with nickel-cadmium batteries, it is lighter, thinner, no longer toxic and has an increased energy density. At the same time, the memory effect of the battery is greatly reduced (20 full charge and discharge is still required), but the problem of heat distortion still exists.
Current mobile phone battery (picture quoted from Baidu)
The use of lithium-ion batteries is a milestone in the mobile phone battery revolution. Its weight is very light, compared with nickel-metal hydride batteries, the energy density is increased by 30%, no longer has a memory effect. With the release of technology, lithium polymer batteries have emerged, which are not only smaller in size but also higher in capacity. (Of course, it is still in the category of lithium batteries).
Why mobile phone battery capacity can not be greatly improved
In the final analysis, the battery capacity is not improved much or technical reasons (of course, it will be complicated from the technical level. Simply put, the current technology can only achieve a level proportional to the volume and volume, and want to achieve a larger capacity in the same volume. Technically it is indeed a bottleneck). In addition to the technical factors, the main reason is that users prefer lighter, thinner and larger screen mobile phones. If you simply pursue the standby time, the battery will increase in size, which will inevitably affect the user experience. After all, no one wants to hold it. A brick walked away everywhere. (Although the Jinli M5 broke the capacity record of the mobile phone battery with a capacity of 6020mAh, it was basically assembled from two batteries.)
Gionee M5 with battery capacity of 6020mAh
The conversion rate problem is also a factor that affects the development of mobile phone battery capacity. Although the large-capacity battery can certainly extend the battery life, when the battery is dead, the charging becomes a long and afflicting thing, just like I used it. Like a charging treasure with a capacity of over 10,000, although it can charge the phone many times, it takes a long time to charge it.
The most important thing is the safety issue. The battery technology with the capacity below 3500mAh is relatively mature. As the battery capacity of mobile phones continues to increase, the security risks brought by it are also increasing. In essence, a battery is a device that converts chemical energy into electrical energy, which inevitably has instability with respect to the chemical reaction itself. This is why there are always some natural explosions in charging treasures.
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