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Home> Articles>News>How to determine whether the quality of 3.7v polymer lithium battery is qualified

How to determine whether the quality of 3.7v polymer lithium battery is qualified

From:CTECHI GROUP Limited     Release time:2019-10-18

Overview:The 3.7v polymer lithium battery has floating powder on the pole piece. After winding into the battery and injecting the liquid, the floating powder will move in the battery with the movement of the electrolyte, and move to some places where problems are easy, such as the diaphragm is defective. Places, there will be problems such as micro-short circuit and large self-discharge of the battery.

The following are the criteria for determining whether a 3.7v polymer lithium battery is qualified:

First, what is the problem with floating powder on the pole piece of the 3.7v polymer lithium battery?

The 3.7v polymer lithium battery has floating powder on the pole piece. After winding into the battery and injecting the liquid, the floating powder will move in the battery with the movement of the electrolyte, and move to some places where problems are easy, such as the diaphragm is defective. Places, there will be problems such as micro-short circuit and large self-discharge of the battery.

Second, what is the problem with the pole piece thickness and the thinning of the 3.7v polymer lithium battery?

The thickness of the 3.7v polymer lithium battery does not meet the requirements. The thickness of the battery will not be required first. In addition, the thickness of the pole piece is different, and the micropores in the active material will be different. The amount of electrolyte absorbed by the pole piece during injection is different, which may cause a difference in battery performance.

Third, what effect does the short circuit of the 3.7v polymer lithium battery have on the battery?

The short circuit of the 3.7v polymer lithium battery will cause the battery to be formed, and the battery can only be scrapped.

Fourth, what effect does the 3.7v polymer lithium battery have on the spiral?

The 3.7v polymer lithium battery has a spiral shape, which affects the size of the battery core. It is difficult to packaging film and may cause a short circuit.

Fifth, what is the impact of the pole piece of the 3.7v polymer lithium battery on the battery?

The pole piece of the 3.7v polymer lithium battery has a cloak that may pierce the diaphragm, causing the positive and negative electrodes to contact, causing a short circuit inside the battery.

The above points are only preliminary judgments. For more details, please contact us.


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