摘要：AB<sub>2</sub>O<sub>4</sub>-type binary-transition metal oxides (BTMOs) of CuCo<sub>2</sub>O<sub>4</sub> and MnCo<sub>2</sub>O<sub>4</sub> were successfully prepared on ordered macroporous electrode plates (OMEP) for supercapacitors. Under the current density of 5 mA cm<sup>−2</sup>, the CuCo<sub>2</sub>O<sub>4</sub>/OMEP electrode achieved a specific capacitance of 1199 F g<sup>−1</sup>. The asymmetric supercapacitor device prepared using CuCo<sub>2</sub>O<sub>4</sub>/OMEP as the positive electrode and carbon-based materials as the negative electrode (CuCo<sub>2</sub>O<sub>4</sub>/OMEP//AC) achieved the power density of 14.58 kW kg<sup>−1</sup> under the energy density of 11.7 Wh kg<sup>−1</sup>. After 10,000 GCD cycles, the loss capacitance of CuCo<sub>2</sub>O<sub>4</sub>/OMEP//AC is only 7.5% (the retention is 92.5%). The MnCo<sub>2</sub>O<sub>4</sub>/OMEP electrode shows the specific and area capacitance of 843 F g<sup>−1</sup> and 5.39 F cm<sup>−2</sup> at 5 mA cm<sup>−2</sup>. The MnCo<sub>2</sub>O<sub>4</sub>/OMEP-based supercapacitor device (MnCo<sub>2</sub>O<sub>4</sub>/OMEP//AC) has a power density of 8.33 kW kg<sup>−1</sup> under the energy density of 11.6 Wh kg<sup>−1</sup> and the cycle stability was 90.2% after 10,000 cycles. The excellent power density and cycle stability prove that the prepared hybrid supercapacitor fabricated under silicon process has a good prospect as the power buffer device for solar cells.
