Additionally, as we can see from Figure (c), the current contribution from graphite exceeds 100%, while for Si it drops below 0%. This implies that some extra lithium exchange is happening between graphite and Si phases. Even if at 1C this effect is not visible through global averages such as the one of Figure (c), it still happens locally as can be seen in Figure (a), where negative (positive) values represent lithiation (delithiation) zones. Of course, this same effect is also visible in the case of 0.1C. This lithium crosstalk between graphite and Si phases is recognized as an additional degradation mechanisms for the composite electrodes, and has recently been observed experimentally . Which further strengthens the validity of our reported model.