In-situ Growth Self-woven NiCo₂O₄ Nanosheet Multi-channels and its Capacitance Properties

A kind of novel self-woven NiCo₂O₄ nanosheets of multi channels on the nickel foam was successfully obtained through an in-situ hydrothermal method and by means of coprecipitation of homogeneous phase, so the the NiCo₂O₄-nickel foam composite electrode was obtained. According to electrochemical tests, the capability retention rate of the composite electrode was 89% when the electric current density increased from 1 to 20 A/g; and the cycle stability could reach 85% retention after the 5000 cycles of test at 0.5 A/g. The excellent electrochemical performance of composite electrode is attributed to the special self-woven multi-channel structure of the electrode. The structure provides more active sites for electrochemical reactions, effectively improves the electrolyte ion penetration and electron transfer rate, and increases the structure stability of the electrode material. This method can significantly improve the electrochemical performance of NiCo2O4 and increase the application potential of the electrode material in the energy storage market.