The energy density of supercapacitors (EDLC) is low (nearly 10Wh/L) and needs to be enhanced to further expand their range of applications. A promising route to fulfill this goal is to design hybrid supercapacitors where an activated carbon electrode is combined with a large capacity faradic (pseudocapacitive or battery-like) electrode, increasing the energy density compared to conventional EDLC. In this work, the synthesis of active materials by the mean of an ultracentrifugation process has been explored to further extend the performance of high-rate and pseudocapacitive materials such as Li4Ti5O12, TiO2(B), Li3VO4, LiFePO4, and Li3V2(PO4)3. We have conducted the electrochemical characterization of hybrid capacitors based on such newly-synthesized nanomaterials in a lab-scale laminate type cell and successfully demonstrated the increase of energy density for EDLC to more than 3-fold per active material weight.