AEROXIDE® alumina increases performance and lifetime of battery cells
The Challenge
Cathode active materials (CAMs) and anode active materials (AAMs) are essential for the performance of Lithium-ion batteries (LIBs). The cathode is the positive electrode of a Li-ion battery, and the source of its energy. The higher the energy density of a LIB cell, the greater the stress on the cathode material and the shorter its service life.
Anode active material is the counterpart of cathode active materials and host the Lithium-ions on the negative electrode. Graphite is the most common AAM, but nowadays more silicon-based anode materials are used to increase the energy density and the fast-chargeability of Lithium-ion batteries. However, Si-based materials such as pure Si/C- or even SiOx/C-based composites have a significant drawback: their lifetime is limited, and the capacity of the battery drops quite fast.
Therefore, the LIB industry needs to improve these materials to extend the range for a single charge of battery electric vehicles.
