Abstract In this work we study heat-treated FeCu-phthalocyanine (FeCuPc) complexes as the catalyst for oxygen reduction in non-aqueous electrolyte Li/air cells by supporting the catalyst on a high surface area Ketjenblack EC-600JD carbon black. It is shown that the resultant FeCu/C catalyst not only accelerates the two-electron reduction of oxygen as “O 2 + 2Li + + 2e → Li 2 O 2 ”, but also catalyzes the chemical disproportionation of Li 2 O 2 as “2Li 2 O 2 → 2Li 2 O + O 2 ”. In Li/air cells, the catalyst reduces polarization on discharge while simultaneously reducing the fraction of Li 2 O 2 in the final discharged products. In a 0.2 mol kg −1 LiSO 3 CF 3 7:3 (wt.) propylene carbonate (PC)/tris(2,2,2-trifluoroethyl) phosphate (TFP) electrolyte, the Li/air cells with FeCu/C show at least 0.2 V higher discharge voltage at 0.2 mA cm −2 than those with pristine carbon. By measuring the charge-transfer resistance ( R ct ) of Li/air cells at temperatures ranging between −30 °C and 30 °C, we determine the apparent activation energy of the discharge of Li/air cells and discuss the effect of FeCu/C catalyst on the oxygen reduction in Li/air cells.