Comment on "In Situ Measurements of Stress-Potential Coupling in Lithiated Silicon" [J-Electrochem. Soc., 157, A1253 (2010)], "On Plastic Deformation and Fracture in Si Films during Electrochemical Lithiation/Delithiation Cycling" [J-Electrochem. Soc., 160, A1885 (2013)], and "Real-Time Stress Measurements in Germanium Thin Film Electrodes during Electrochemical Lithiation/Delithiation Cycling" [J-Electrochem. Soc., 162, A2840 (2015)]