What statement is NOT true about standard electrode potentials? The electrode in any half-cell with a greater tendency to undergo reduction is positively charged relative to the standard hydrogen electrode and therefore has a positive EĀ°. EĀ°cell is negative for spontaneous reactions. Electrons will flow from more negative electrode to more positive electrode. The electrode potential of the standard hydrogen electrode is exactly zero. EĀ°cell is the sum of the reduction potentials for the anode and the cathode.