Processing of Silicon Anodes by Aerosol Jet Printing

Abstract

Aerosol Jet® Printing is investigated as deposition technique for silicon as anode material for lithium-ion batteries. Binder free structures with silicon particles were deposited and galvanostaticly cycled. The morphological changes of the electrode were examined with SEM, Raman spectroscopy and x-ray photon spectroscopy (XPS). The fast degradation is explained with the huge amount of side reactions building LiF and the low conductivity of the intrinsic silicon particles. The addition of conducting carbon did not affect cycling stability.