Battery-Grade 99.95% High Purity Alumina Powder with Excellent Dispersibility for Li-ion Ceramic Separator Coating

Enhance Li-ion battery safety and performance with our 99.95% high-purity alumina powder. This specialized material offers excellent dispersibility, reduces diaphragm blockage, and improves high-temperature resistance.

Engineered specifically for the demanding requirements of next-generation lithium-ion batteries, our 99.95% ultra-pure alumina powder is the optimal coating material to significantly boost battery safety, performance, and longevity. Its superior dispersibility and controlled particle morphology make it an indispensable component for high-quality ceramic separators.

• Enhances Battery Safety: Improves the high-temperature resistance of separators, reducing the risk of thermal runaway.
• Optimizes Coating Quality: Excellent dispersibility in water-based slurry systems ensures uniform coating thickness, a smooth film surface, and minimal heat shrinkage.
• Improves Production Efficiency: Small specific surface area reduces slurry water content and extends coating roller life by minimizing wear.
• Ensures Consistent Performance: Narrow particle size distribution reduces diaphragm blockage, maintaining excellent air permeability for optimal ion flow.

While specialized for Li-ion battery ceramic separators, this high-purity alumina also serves as a critical material in:

• Advanced Ceramics: Electronic ceramics and synthetic aluminum nitride raw materials.
• Optical & Lighting: Phosphors and high-pressure sodium lamp tubes.
• Advanced Materials: The base material for growing artificial crystals.

In ceramic separator coatings, the physical properties of the alumina powder are as important as its chemical purity. Our product is engineered to address key production challenges:

• Good Dispersibility ensures a stable, homogeneous slurry, preventing agglomeration that leads to defects and blockages in the final separator film.
• High Purity (≥99.95%) minimizes metallic impurities that can catalyze unwanted side reactions within the battery, compromising cycle life and safety.
• Controlled Particle Size (Narrow Distribution) is critical for creating a uniform porous structure in the coating, which is essential for high electrolyte uptake and low ionic resistance.

We offer multiple grades (LA-T, LA-T01, LA-TX, LA-B) with subtle variations in purity and particle size to meet your specific slurry formulation and performance requirements. Contact our technical team to request detailed datasheets and discuss how our alumina powder can optimize your battery components.