Rechargeable iron/air cells employing bifunctional oxygen electrodes of oxide pyrochlores

Official URL: http://dx.doi.org/10.1016/0378-7753(91)80028-V

Prototype secondary iron/air cells comprising pressed-type iron electrodes and oxygen electrodes of some oxide pyrochlores have been assembled and subjected to electrochemical charge/discharge tests for over 150 cycles at various load currents. The cells are found to exhibit little deterioration in performance. Oxygen electrodes using $PbBiRu_2O_7_-_y$ oxide pyrochlores are superior to those with $Pb_2Ir_2O_7_-_y$, except under high-load currents.