<p>Disclosed is a capacitor having excellent withstand voltage characteristics and durability, wherein graphite which hardly causes intercalation is used for a positive electrode. Specifically disclosed is a capacitor comprising a positive electrode containing a graphite material, a negative electrode containing a non-graphite carbonaceous material and a nonaqueous electrolyte solution. This capacitor is characterized in that the solvent of the nonaqueous electrolyte solution contains ethylene carbonate.</p>
