Progress in preparation methods and modification of NiCo2O4.

The preparation methods of NiCo2O4 materials are introduced, including hydrothermal/solvo-thermal method, sol-gel method, electrospinning method and so on. The existing problems and modification methods of NiCo2 O4 materials in the application process are described. Poor cycle stability, low energy density and functional density limit its practical application to a great extent. Therefore, many modification methods have been studied, mainly by changing the material structure and coating and doping conductive substances, and the development and application of NiCo2O4 materials are prospected. [ABSTRACT FROM AUTHOR]