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Fumed Alumina
High-purity fumed alumina particles deliver superior performance benefits for cathode active materials (CAM) coating.
SpectrAl® fumed alumina products provide distinct advantages due to their exceptional crystallinity and high purity, making them exceptional coating additives for cathode active materials and separators in lithium-ion battery applications. As a coating additive, SpectrAl® fumed alumina increases the cathode particle stability and separator thermal properties, enhancing cell cycle life and battery safety.
Cathode Active Material (CAM) surface coating
A coating acts as a barrier between the CAM and electrolyte to mitigate side reactions and improve particle stability. SpectrAl® fumed alumina can be applied to the CAM particle surface using a dry process, reducing CAM and electrolyte decomposition, which results in improved cell capacity retention, leads to longer battery cycle life, and enhances overall performance during high-temperature storage and voltage conditions.
SpectrAl® fumed alumina is used in ceramic-coated separators, contributing to improve battery safety and durability. SpectrAl fumed alumina coatings can significantly improve the thermal shrinkage, oxidation resistance, heat resistance, mechanical stability and wettability of the ceramic layer’s porous structure, which brings enhanced lithium-ion battery performance and safety.
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