White Fused Aluminum oxide Powder 1-2um for lithium batteries separator

The coated separator is an important inner component of lithium batteries. It is used to separate the positive and negative electrodes and prevent short circuits in contact between the two poles. The performance of the separator has a significant impact on the storage and safety performance of the battery. Lithium battery coated separators need to have good mechanical tensile properties and strength, good thermal and chemical stability, uniform thickness, and certain breathability. White Fused Aluminum oxide powder 1-2um works as a toughening material for coating the separator. There are several advantages:

1. White corundum micro powder is non-conductive and has insulation properties. In addition, the electrical conductivity of the fused alumina micro powder W1.5 is very low. At the same time, the PH value is neutral. It will not affect the insulation performance of the diaphragm.

2. White fused aluminum oxide powder 1-2um undergoes water washing treatment, with minimal impurities and dust. That is beneficial for improving the flowability of wear-resistant fillers and can be well compatible with polyethylene.

3. The particle size of white aluminum oxide ultrafine powder 1-2 micron is very small and will not affect the thickness of the coated diaphragm.

4. As the solvent of the electrolyte is a highly polar organic compound, the separator must be resistant to electrolyte corrosion and have sufficient chemical and electrochemical stability. White corundum micro powder is an alumina powder that has been melted at high temperature, and has good high-temperature resistance and excellent chemical stability.

5. The hardness, compressive strength, and toughness of fused white corundum micron are high. It can improve the puncture resistance and mechanical strength of the diaphragm.

6. White fused aluminum oxide powder is inert to chemical reactions in lithium batteries. Moreover, it doesn’t join in electrochemical reactions. That helps maintain the stability and safety of the battery.

7. White alumina powder 1-2um has good thermal stability. Thus, it can resist high temperatures during the operation of lithium batteries.