Electrolytic capacitor and manufacturing method

The present invention provides an electrolytic capacitor using an electrically conductive polymer and having even better capacity, and a manufacturing method. The electrolytic capacitor comprises an electrolyte layer containing the electrically conductive polymer and a plastic crystal. The manufacturing method for this electrolytic capacitor includes an electrolyte layer forming step for forming the electrolyte layer between a pair of electrodes. An electrolyte forming step includes a polymer attachment step for attaching the electrically conductive polymer to one or both of the pair of electrodes, and a plastic crystal attachment step for attaching the plastic crystal to one or both of the pair of electrodes.