againstButton batteryIs there any need to exist? This question makes people feel that today's lithium batteries, mercury rechargeable batteries, and mobile power supplies should be able to meet our needs, and the number of places where button batteries are used in daily life is getting lower and lower. .

Some people say: "Those who know more about rechargeable batteries should understand that the advantage of button batteries compared to other rechargeable batteries is the extremely low lithium battery life. For example, I use a 1000 mAh lithium battery and a 50 mAh The coin cell battery serves as a low power device. If my device is in sleep mode most of the time, working every few seconds with only uA levels, a 50 mAh coin battery costs less and takes longer because A 1000 mAh lithium battery will not last long, and self-discharge will make its lifespan expire earlier. How can it be used for a long time?

In fact, a person who knows the subdivision of the industry should know the necessity of button batteries, just like the emperor of the Jin Dynasty said "Why not eat minced meat" during the famine. Existence is reasonable, and everything always has it The rationalization of existence has irreplaceable uses in various aspects.

There are many kinds of batteries, such as several ordinary batteries and extended products mentioned by the landlord. They are just a small corner of the battery field and there are still errors. What is a "mercury rechargeable battery".

Solar cells, batteries, air batteries and fuel cells are irreplaceable and will not be commented on for the time being. As for button batteries, they are small in size, high in specific capacity, and require no charging design (including rechargeable button batteries), and their circuits and functions are Its advantages over rechargeable lithium batteries. Designers always tend to design circuits with lower power consumption. In the future, button batteries will develop faster. In fact, in the past ten years, the output of button batteries has increased And sales increased more than ten times. Don't ask where the data comes from. I'm one of the practitioners.

As long as applications requiring small-capacity batteries exist, coin cells will be necessary.