Characterization of Electronic and Ionic Transport in Li[subscript 1-x]Ni[subscript 0.33]Mn[subscript 0.33]Co[subscript 0.33]O[subscript 2](NMC[subscript 333]) and Li[subscript 1-x]Ni[subscript 0.50]Mn[subscript 0.20]Co[subscript 0.30]O[subscript 2](NMC[subscript 523]) as a Function of Li Content