12+4um Ceramic Separator for Lithium Battery Raw Materials

12+4um Ceramic separator

Specification:

High purity aluminum oxide for lithium battery separator Technical indicators:

Model: VK-L500G

Appearance: White powder

pH: 6-8

Crystal type: a phase

Particle size, nm 0.5um

Purity %:99.999 or more

Table: m2/g 2-6

Surface treatment agent: 0.1% membrane specific active agent

Ceramic coated separator advantages:

High temperature resistance, reduce the thermal contraction of theseparator, enhance the safety performance of the battery.

Polyolefinseparators are prepared by stretching process. There is a certain internal stress in the separators. When the temperature rises, theseparators will shrink to a certain extent, especially when the temperature is high, the shrinkage phenomenon will be further intensified. Ceramic coatedseparator because there is a certain ceramic layer, and the ceramic layer does not have the property of heat shrinkage, it plays a skeleton role, and forms a "bone wrapped meat" structure with the membrane. Therefore, it can adhere to the polyolefinseparator to prevent thermal shrinkage, and even when the polyolefinseparator reaches the breaking temperature, the ceramic layer can keep the shape integrity of theseparator and increase the breaking temperature of theseparator. The ceramic coated separator can obviously enhance the safety performance of the cell.