Part of ‣ and Cell degradation.

Details are in the paper. The basic idea is that if we know the half-cell OCVs of the given pristine chemistry/process of cathode/anode manufacturing, we can fit the sum of the two half-cell OCVs by contracting them and shifting against each other (relative to the shift in a pristine cell/pristine cell OCV). By knowing how much we contracted each half-cell OCV and how much we shifted we can derive whether the cell degradation is due to Loss of active material: cathode loss, anode loss, or Loss of lithium inventory (which can be both due to Lithium plating and the growth of SEI layer on anode).