Alumina Powder For Lithium Battery Diaphragm

The alumina powder for GM series lithium battery diaphragm produced by Xiangrun is mainly coated on the surface of the separator to form a uniform ceramic coating, which significantly improves the heat resistance, mechanical strength and electrolyte wettability of the diaphragm, plays the role of heat resistance, high temperature resistance and insulation, and prevents the power battery from overheating due to high temperature and diaphragm short circuit. This layer of alumina coating can effectively prevent the diaphragm from shrinking or rupturing at high temperature, enhance the thermal stability and safety of the battery, and improve the cycle performance and rate performance of the battery. It is one of the key materials for high-performance lithium battery diaphragm.

(1). All inorganic ingredients, high purity, non-toxic and harmless, green and environmentally friendly, in line with national standards and international environmental protection requirements.

(2). It has good high temperature resistance, and it is a ceramic separator with excellent insulation performance.

(3).The particle size is moderate.  The average particle size is about 500 nanometers. After applying this release agent, it can not only withstand high temperature and insulation, but also block the film hole. And it does not affect the back and forth movement of the lithium battery between the positive and negative electrodes and never shortened the service life of lithium batteries.

(4). Good dispersion performance and good suspension performance.

Qualitative   data

BR-GM-01R

BR-GM-01MR

 Chemical

Composition 

   L.O.I

 (%) 

 0.1 

0.1

  SiO₂  

 (%) 

0.05

0.05

  Fe₂O₃     (%)

0.02

0.02

  Na₂O    (%)

0.04

0.04

MgO

(%)

-

0.05

  Al₂O₃    (%)

＞99.9

＞99.9

Size   of  α-crystal 

(um)

0.3~0.4

0.3

Mean   Particle Size  (um)

0.35~0.55

0.35~0.55

BET(m²/g)

3~5

3~5

α- Al₂O₃(%)

＞95

＞95

Green Density  (g/cm³)

2.22

2.22

Green Density  (g/cm³)

3.88

3.88

Linear Shurinkage  (%)

17

17

Water Contant (ppm)

＜3000

＜3000

Alumina Powder For Lithium Battery Diaphragm is specially applicable to lithium battery ceramic diaphragm, it can also be widely used in fine ceramics, more than 99.5% ceramics and honeycomb ceramics; This alumina powder is high-performance refractory materials and grinding & polishing materials.

Disperse our high purity aluminium oxder powder with high-speed stirring first, then adjust the adhesive and apply it to the lithium battery separator. The thickness of the coating is generally 2-3um.

1. How long do you produce  Alumina Powder For Lithium Battery Separator?

   --It is about 7 years in this filed. 

2. Could you guarantee the quality of Alumina Powder For Lithium Battery Separator?

   ---Yes, for sure! 

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