Why is the life of lithium batteries not long?

Nowadays, the battery of our most commonly used electronic equipment is lithium ion or lithium polymer battery, but this battery is not the most ideal. Although the technology is quite mature, the life, capacity and safety of the battery can be widely accepted by consumers. But the problem of longevity and aging has been plaguing us. What is the reason?

Lithium battery life is not long, although the memory and lifespan is much better than traditional nickel-metal hydride batteries, about 20% of charge and discharge will be lost, and the activation has not changed significantly. Recently, scientists at the Western Pacific National Laboratory in the United States have successfully observed the real-time state of lithium battery charging and discharging using a powerful microscope, and found the cause of this phenomenon.

The battery generates physical stress when it is used, causing the electrode to rupture. Each charge and discharge cycle also leaves traces of lithium outside the electrodes. These "dead" lithium can no longer function in future charging and cause a drop in battery capacity.

Then the question is coming, how to solve this phenomenon? The solution given by scientists is to look for more stable metals such as magnesium, aluminum or copper, but the performance is not as good as lithium batteries, so you need to continue to find the answer.

In fact, people have never stopped talking about battery technology. On the one hand, they have to find ways to increase battery capacity and charging speed. On the other hand, scientists have been looking for low-power electronic materials. I believe that in the near future, the power consumption of electronic devices such as mobile phones will be solved.

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