Flexible hybrid capacitors based on transition metal composite electrodes

The shortage of fossil energy sources has lead to increasing requirements for the exploration of sustainable energy conversion and storage equipment. Supercapacitors (SCs) are a kind of energy storage device featuring high power density and long cycle life. However, the low energy density restricts their further practical application. Therefore, it is extremely important to develop high-performance electrode materials with excellent performance. Transition metal oxides are considered to be promising candidates for supercapacitor electrode materials.

Researchers led by Prof. Xiang Wu at Shenyang University of Technology (SUT), China, report on Co₃O₄@NiMoO₄ nanowire structures grown on porous nickel foam via a two-step hydrothermal method. With conductive nickel foam as the skeleton, this setup provides high capacitance electrode materials. When used as cathode material for asymmetric supercapacitors, Co₃O₄@NiMoO₄//activated carbon devices show a high energy density and long cycle stability.

The work entitled was published in Frontiers of Optoelectronics.

More information:
Yongli Tong et al, Co₃O₄@NiMoO₄ composite electrode materials for flexible hybrid capacitors, Frontiers of Optoelectronics (2022). DOI: 10.1007/s12200-022-00029-0

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