Development of a water based process for stable conversion cathodes on the basis of FeF3
By Pohl, Alexander; Faraz, Mohammadkazem; Schr
Published in Journal of Power Sources
2016
Abstract
Abstract A facile water based synthesis method for HTB-FeF3/rGO and r-FeF3/rGO composites was developed using FeF3 nanoparticles prepared by ball-milling and aqueous graphene oxide precursor. Electrodes of HTB-FeF3/rGO were cast in ambient air and the calendered electrode shows a stable specific energy of 470 Wh kg?1 (210 mA h g?1, 12 mA g?1) after 100 cycles in the range 1.3-4.3 V with very little capacity fading. The good cycle stability is attributed to the intimate contact of FeF3 nanoparticles with reduced graphene oxide carbon surrounding. Using a combination of in situ XRD, {XAS} and ex situ M