Influence of Environment

With the coming of winter, as the temperature gradually cools down, there is a low temperature of more than ten degrees below zero in the north, which is also a test for electronic products in this cold environment.

We all know that electronic products are most afraid of high temperature, which can even directly burn the equipment. But in fact, the low temperature will cause more damage to the equipment. In fact, it is not only mobile phones, but also electronic products we usually carry when we go out, such as laptops, tablets, etc., will be affected by the low temperature weather.

In the cold winter, have you ever encountered such a situation that the cell phone is still full when you go out, and the power drops very quickly after using it outdoors for a while; There are also lithium batteries for electric vehicles, which can be used for a week in general, but can only last for two or three days in winter. So, do you know why the colder the weather is, the faster the cell phone loses power?

In fact, this is related to the characteristics of mobile phone batteries. In short, our mobile phone is actually a kind of cold-proof battery - lithium-ion battery. The working capacity of lithium-ion battery depends not only on the positive and negative electrode materials and electrolyte solution, but also on the discharge temperature and current of the battery. According to the test, the lithium ion battery discharge normally at normal room temperature, but at minus 20 ℃, the discharge capacity of the lithium ion battery is only about 30% of that at normal room temperature. Therefore, in the cold winter, the use of mobile phones indoors is relatively normal. In the cold outdoor, the battery power will drop quickly.

In order to ensure that the electronic products we use can be used normally in different environments across the country, manufacturers will conduct reliability environmental tests. If there are problems with the products in the test, various environmental tests must be carried out to speed up the occurrence of these failure mechanisms, and then solve the possible problems of the products.

What testing equipment will be used for reliability environment testing? Next, let's get to know each other, as shown below:

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