EV battery

Do you know what kinds of effects the diaphragm has on lithium batteries in general?

by：Vglory 2021-03-20

The thickness of the diaphragm is thinner and the ion migration channel is shorter, the polarization phenomenon will be weakened to a certain extent, and the low-temperature voltage platform of the lithium battery will be relatively high. Excessive diaphragm holes will speed up the self-discharge process of the lithium battery, thereby reducing the voltage consistency of the battery. Impact on safety A thicker separator can better protect the internal positive and negative electrodes when the lithium battery is impacted by an external object, so a thicker separator also means better safety. Influence on internal resistance The air permeability of the diaphragm is proportional to the internal resistance of the lithium battery assembled with it, that is, the higher the air permeability of the diaphragm, the greater the internal resistance of the lithium battery. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What are the methods for testing lithium battery protection board?

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