-What is the reason for the short life of lithium-ion batteries

What is the reason for the short life of lithium-ion batteries
author:enerbyte source:本站 click381 Release date: 2023-02-16 11:24:45
abstract:
The life of lithium-ion batteries is not very long. Although the memory and life of lithium-ion batteries are much better than that of traditional Ni-MH batteries, about 20% of them will be lost after about 500 times of charging and discharging, and the activation has not changed significantly...

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The life of lithium-ion batteries is not very long. Although the memory and life of lithium-ion batteries are much better than that of traditional Ni-MH batteries, about 20% of them will be lost after about 500 times of charging and discharging, and the activation has not changed significantly. Recently, scientists from the Western Pacific National Laboratory of the United States successfully observed the real-time state of lithium ion battery charging and discharging using a powerful microscope, and found the cause of this phenomenon.

Physical pressure will occur when the battery is in use, resulting in electrode breakage. Each charge-discharge cycle will also leave traces of lithium outside the electrode. These dead lithium can no longer be used in future charging, and will cause the reduction of battery capacity.

So the question is, how to deal with this phenomenon? The method given by scientists is to find more stable metals such as magnesium, aluminum or copper to replace them, but the performance is not as good as lithium ion batteries, so we need to continue to find the answer.

In fact, people have never stopped working on battery technology. On the one hand, they need to find ways to improve 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 problem of power consumption of mobile phones and other electronic devices will be solved.

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