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Li-ion Battery Separator Coating Alumina Nanopowder alpha Al2O3 Nanoparticle

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Li-ion Battery Separator Coating Alumina Nanopowder alpha Al2O3 Nanoparticle

Hongwu Nano supply high purity 4N Al2O3 nanopowder in alpha and gamma phase, both powder and dispersion forms are available. 

  • product origin:

    China
  • item no.:

    N611,N612
  • shipping port:

    China
  • color:

    Color
  • lead time:

    Depends on
  • payment:

    Inquiry
pPoduct Details

Li-ion Battery Separator Coating Alumina Nanopowder alpha Al2O3 Nanoparticle 

Specification of Al2O3 nanopowder:

Phase and size: 

alpha: 100-200nm, 0.3um, 0.5um, 1um

gamma: 20-30nm

Purity: 99.7%-99.99%

Color: white



The nano alumina ceramic coating provides a skeleton for the flexible seperator, improves the wear resistance of the seperator, prevents lithium dendrite from piercing, reduces heat shrinkage, improves temperature resistance, and the pores are stable with temperature, which can effectively improve the safety performance of the battery.

The main requirements fo rnano alumina powder for seperator ceramic coating are:

(1) High chemical purity (99.5-99.99%);

(2) The particle size is superfine, the particle size distribution is narraw, the deposited pores are uniform, and the pore permeability is high;

(3) The particle shape is like spherical, the crystallinity is high, the specific surface area is small, the oil absorption rate is low, the coating process is effectively improved, and the coating is thin and uniform.

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