Alumina For Lithium Battery Separator

1. Alumina for lithium battery separator has high purity.

High alumina content, low content of harmful impurities such as silicon, iron, sodium, calcium, high product purity, no impurities introduced during use, and will not affect the internal environment of the battery.

2. Small particle size and narrow distribution

Ultrafine alumina particle size control and concentrated particle distribution will not block the separator gap of lithium batteries.

3. Good shape and structure

Alpha-alumina grows uniformly in 3D through structural control, in the form of microcrystalline spheres. After surface modification, the powder is well dispersed. Good compatibility with electrolyte and high liquid absorption rate.

Alumina can be used in lithium battery separator coating raw materials, microcrystalline ceramics, precision ceramics, foam ceramics, cables, paint fillers, heat-resistant flame retardants, integrated circuit chips, aviation light source devices and other fields.

Alumina-coated lithium battery separators have been favored by many industry leaders over the past few years. Its superior thermal stability and high specific surface area powder materials have good wetting and liquid retention properties for electrolytes, which make ceramic-coated separators have good prospects. However, in 2018 when diaphragm prices fell, many diaphragm companies did not struggle. The competition in the diaphragm industry has entered the Red Sea, and industries such as serious homogenization, fierce price wars, and structural excess capacity have gradually erupted. Wet + coated diaphragms and alumina for lithium battery diaphragms have become one of the mainstream. Domestic enterprises are developing towards high-end diaphragms.