Stack type solid electrolytic capacitor packaging structure and manufacturing method thereof

The invention discloses a stack type solid electrolytic capacitor packaging structure. The structure comprises a capacitive unit, a packaging unit and a conductive unit. The capacitive unit comprises multiple sequentially stacked first stack type capacitors. Each first stack type capacitor is provided with a first anode portion and a first cathode portion. The packaging unit comprises a packaging colloid completely wrapping the capacitive unit. The conductive unit comprises first conductive terminals and second conductive terminals. The first conductive terminals are provided with first inner embedding portions and first bare portions, and the second conductive terminals are provided with second inner embedding portions and second bare portions. The outer surface of the first stack type capacitor at the outermost layer is provided with multiple first exposed welding micro grooves in contact with the packaging colloid, and the first exposed welding micro grooves are recessed towards the directions of the first inner embedding portions of the first conductive terminals. The invention also provides a manufacturing method of a stack type solid electrolytic capacitor packaging structure.