$\begin{array}{1 1}\text{Electrode of half-cell potential -0.76V serves as cathode}\\\text{Electrode of half-cell potential -0.76V serves as anode}\\\text{Electrode of half-cell potential -0.13V serves as anode}\\\text{Electrode of half-cell -0.76V serves as positive electrode and -0.13V as negative electrode}\end{array} $