Why does the innovation technology of improving smart phone batteries haven't come along?

Battery has become the most important bottleneck to limit the development of mobile phones. Modern smart phone batteries account for 40 % of the volume space of mobile phones, and the lack of power still troubles us. Mobile phones still fill up every day.

Imagine that if the phone did not have the power limit, CPU would no longer be limited by power consumption, the phone would be made thinner and thinner, and mobile phone manufacturers would have bolder attempts to innovate.

But why haven't cell phone batteries made substantial progress over the years?

After the capacity of mobile phone batteries was increased to 3000 mAh, it was difficult to progress. Before that, the main battery development was due to the use of new materials. When the material was converted from nickel to metallic lithium, The battery life of consumer electronics has greatly increased. Professor Yuehan·gudeyi, the father of lithium iron phosphate and an important scientist in the development of modern batteries, said that the current research focuses on improving the life span of lithium batteries. "The periodic table is very limited," Gudeyifu said, making progress and ascension increasingly difficult.

At present, lithium battery is still the most suitable choice for mobile phones. It is safe, light weight, and strong memory. At present, the method of increasing cell phone battery capacity is mainly to increase the density of lithium battery and increase the battery volume, but this is not a long-term plan. After all, the density of lithium batteries is now close to its theoretical maximum density.

In short, the periodic table of elements has become a bottleneck in cell phone battery upgrading. People have not yet been able to find more suitable elements than lithium to replace it.

However, in order to solve the pain of electricity, mobile phone manufacturers have used all the tricks they can use. For example, dynamically adjusting SoC's core operating frequency, PSR self-refresh, Nega negative liquid crystal, coprocessor, and fast charging technology. 10Nm or higher processes of CPU and so on.

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