AEROXIDE® as separator filler improves the safety of Lithium-ion battery cells
The Challenge
The separator is a crucial element in cells of Lithium-ion batteries (LIB): A porous, polymeric membrane made of PE or PP separates the electrodes from each other to prevent a short circuit.
A separator should be as thin and as safe as possible. Besides ceramic coating of separators, the LIB industry works on an alternative concept: the ceramic filling of separators. It is a way to design polymer membranes even thinner, while maintaining the good safety properties of a thicker separator. However, the nature of the ceramic filler is very important for the final performance of the separator.
