Evonik provides many different production solutions in the form of minute additives that yield large improvements in productivity and processability of lithium-ion batteries used in the electric vehicle industry. Our process enablers contribute to further improvements in the production process of lithium-ion batteries, as well as increasing yields for better electrical performance and lower overall costs.
Evonik’s high-quality and pure AEROXIDE® fumed metal oxides and AERODISP® alumina dispersions play a crucial role in Lithium-ion batteries.
The dry coating of cathode active materials (CAMs) with AEROXIDE® leads to the formation of a protective layer around the CAM particles, resulting in a significant increase of the battery lifetime.
On the separator, AEROXIDE® and AERODISP® are used to coat the polymer-based membrane with a very thin ceramic layer as safeguard against the thermal runaway of a Li-ion battery. In addition, AEROXIDE® can be used as ceramic filler inside of the separator to realize the design of even thinner separators, while maintaining a very high safety.