Abstract：Using foamed nickel as the current collector to directly grow active materials to prepare electrode materials had the advantages of increasing conductivity and avoiding binders. In this paper, nickel nitrate hexahydrate was used as the nickel source, and nickel foam was used as the current collector. A nickel oxalate/nickel foam (NiC2O4/NF) self-supporting electrode was prepared by a hydrothermal method. The electrochemical performance test showed that when the molar ratio of nickel nitrate hexahydrate to oxalic acid was 1:5 and the current density was 0.5 A/g, the mass-specific capacitance of the NiC2O4/NF self-supporting electrode was up to 2 027.78 F/g. After cycling 3 000 times at a scan rate of 100 mV/s, the mass-specific capacitance of the electrode increased to 113.36%. The high mass-specific capacitance and good cycle performance revealed the good application prospects of NiC2O4/NF self-supporting electrodes in the field of energy storage.
CHEN Qing,ZHANG Jiali,LI Shuai et al. Preparation and Electrochemical Performance of Self-Supporting Nickel Oxalate Composite with Nickel Foam[J]. Chemical Reaction Engineering and Technology, 2022, 38(6): 552-559.
