| 摘要 |
PROBLEM TO BE SOLVED: To provide a hybrid capacitor which is further increased in capacity density.SOLUTION: A hybrid capacitor comprises: porous carbon as a positive electrode material, of which the volume ratio of pores of 3.0 to less than 4.0 nm in pore diameter to a total pore volume is between 0 and 30 vol.%, exclusive, and the volume ratio pores of 4.0 to less than 50.0 nm in pore diameter is 30 vol.% or more; a combination of porous aluminum foil and lithium foil as a negative electrode material; and a separator disposed between the positive and negative electrode materials, and impregnated with an organic electrolytic solution. In the hybrid capacitor, the negative electrode material is arranged by laminating the lithium foil on a face of the porous aluminum foil on each side, and the ratio (T/T) of the total thickness Tof the lithium foil to the total thickness Tof the porous aluminum foil is 0.50-1.50.SELECTED DRAWING: Figure 1 |
