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The purpose of the separator
2023-05-15
The purpose of the separator
1. It serves as electronic insulation between the positive and negative electrodes: the separator with good insulation provides a good safety guarantee for the battery, and the good puncture strength and tensile strength can prevent the separator from being broken by burrs and dendrites. cause a short circuit inside the battery. In addition, the thickness and thermal stability of the separator are also important factors affecting the safety of lithium-ion batteries.
2. Supply migrating microporous channels for lithium ions, which determines the charge-discharge and cycle performance of the battery. Therefore, the separator must have a high porosity and a uniform distribution of micropores.
