| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1295371 | Solid State Ionics | 2014 | 6 Pages |
•The Li-O2 battery based on the La0.6Sr0.4CoO3/Super-p electrode was fabricated and measured.•The electrochemical performance was analyzed by the electrochemical impedance spectroscopy (EIS) change of battery.•The cycle life of battery could be improved by controlling the depth of discharge.
The La0.6Sr0.4CoO3 (LSCO) perovskite oxide has been synthesized by a dry gel combustion method and characterized by TGA, XRD, SEM and BET. The initial discharge capacities of LSCO/super-p electrode were 3672.1 mA h · g− 1(carbon), 1418.4 mA h·g− 1(carbon) and 1237.5 mA h · g− 1(carbon) at the current densities of 30 mA · g− 1 50 mA · g− 1 and 80 mA · g− 1 respectively. The discharge capacity was maintained 16 times when the cut-off capacity was set as 500 mA h · g− 1(carbon). The electrochemical impedance spectroscopy (EIS) data revealed that the impedance of battery would increase more quickly if the current density became larger after the same cycles.
