Core, high-voltage-resistance laminated solid aluminum electrolytic capacitor and preparation method of core and high-voltage-resistance laminated solid aluminum electrolytic capacitor

The invention relates to the technical field of solid-state aluminum electrolytic capacitors, in particular to a core, a high-voltage-resistance laminated solid-state aluminum electrolytic capacitor and a preparation method of the high-voltage-resistance laminated solid-state aluminum electrolytic capacitor. A rectangular hollow part is arranged in the middle of each insulating thin plate; a conductive polymer layer, a conductive carbon paste layer and a conductive silver paste layer are sequentially arranged on partial surfaces, corresponding to the hollow parts, of the two side surfaces of the aluminum foil from inside to outside; when the core is prepared, the insulating film material with the hollow part is used for shielding the periphery of the formed aluminum foil, and the cathode layer is prepared on the exposed area of the center of the aluminum foil, so that the cathode layers on the two sides of the aluminum foil are not coherent, and therefore, cathode and anode zoning can be realized; and the pro