Electrical plug-in connection that can be quickly disconnected, fixable plug-in connection, and method for establishing contact between an electrical contact element and an electrical

An electrical plug-in connection for a high-current vehicle application which is fixable and disconnectable, the electrical plug-in connection comprising:

• a first coupling part comprising:
• a first electrical contact element which comprises a base region and an outer region, the outer region comprising an edge region, an external shell surface and at least one slot which extends from the base region to the edge region of the outer region opposite the base region,
• an electrical cable which comprises an electrical conductor, a connection region and an insulation which sheathes the electrical conductor, the electrical conductor comprising an end region which protrudes out of the insulation and which is connected to the base region of the first electrical contact element to allow an electrical conduction,
• an insulating sleeve which surrounds the outer region of the first electrical contact element and which comprises an external shell surface and an internal shell surface, the internal shell surface being spaced from the external shell surface of the outer region of the first electrical contact element, and
• a first housing which surrounds each of the base region of the first electrical contact element, the external shell surface of the insulating sleeve, and the connection region of the electrical cable;
• a second coupling part comprising,
• a second electrical contact element comprising an external shell surface over which the outer region of the first electrical contact element can be slid, and
• a second housing which encloses the second electrical contact element and which, together with the second electrical contact element, forms an annular space into which the first housing can be inserted;
• and
• a retaining clip configured to fix the first housing to the second housing.