Figure shows slurries containing a similar electrode formulation with 8% Si/83% Gr and different solid content percentages (24, 26, and 27). The solid content presented here were chosen allowed us to well-dispersed the selected formulation. Higher solid contents lead us to mushy-like slurries and lost fluidity. The viscosity changes when varying the solid content (Figure ). The viscosity of the suspension is decreased over the entire shear rate when decreasing the solid content (SC), from 27 to SC 24. This difference can be explained considering that additional particle agregation may occur at higher solid contents because of particle jamming and clustering. Thus, a supplementary shear force is necessary when friction appears. The decrease in viscosity is higher at lower shear rate rates when using lower solid contents (varying from 64 to 24 Pa s, for SC 37 to 24, respectively). In contrast, this decrease is lessened at higher shear rates, following other studies that compared the solid content in cathode slurries. Nevertheless, the coating of these slurries would be nearly identical; slurry casting with SC 24 should be more uniform because of its lower viscosity. Figure shows the frequency sweep by maintaining the strain constant as the applied frequency is increased. The frequency sweeps give information on the storage (G') and loss (G") modulus, also known as elastic and viscous modulus, respectively. For the three solid contents used in the slurry formulation, the obtained G" is larger than G' at the whole frequency interval until ~ 10 1 Hz, showing a predominantly viscous behavior. At this frequency, the tendency is reversed (G'> G"), indicating an elastic behavior. Indeed, when decreasing solid content, the frequency value, at which the tendency is inverted, is shifted to higher frequencies, given 8, 10, and 20 Hz for solid contents of 27, 26, and 24, respectively.