“Lithiation Gradients and Tortuosity Factors in Thick NMC111-Argyrodite Solid-State Cathodes” Our new work in ACS Energy Letters. Spatial Li gradients change a lot in all-solid-state batteries with NMC loading.

By matching operando synchrotron diffraction data to a computational battery model, we back out the electrode tortuosity factor. In these cells it ranges from 7-25 (much larger than the 2-4 in typical Li-ion cell with liquid electrolyte).