**6. Conclusions**

In this chapter, electrochemical performance of selected ferrites (CoFe2O4, MnFe2O4, ZnFe2O4, and NiFe2O4) and their nanocomposites with conducting carbon network for supercapacitor has been reviewed. Their synthesis process was also highlighted. The surface morphology of these materials plays an important role in supercapacitor. These materials store the charge by redox process. However, poor electrical conductivity is the main limitation to be used them in fast charging/ discharging supercapacitor. In this regard, their nanocomposites with graphene enhanced the electrochemical performance. Nano-flakes type structure with graphene exhibited great electrochemical performance in supercapacitor.
