1. An implant having a coating (23) that releases silver ions into the human body and, as a result, has an antimicrobial effect, characterized in that the first portion (28) of the coating surface (23) is formed by a silver-containing anode material (25) so that cathode material (26) is provided on a second surface section (29), which is spatially separated from said first surface section (28), wherein said cathode material (26) is higher in the electrochemical voltage range than anode material (25), and that cathode m The material (26) and the anode material (25) are connected to each other in a conductive manner. 2. An implant according to claim 1, characterized in that the anode material (25) is pure silver. An implant according to claim 1, characterized in that the standard electrode potential of the anode material (25), which is based on the release of silver ions, is less than +0.8 V. 4. An implant according to claim 1, characterized in that the standard electrode potential of the cathode material (26) is greater than +0.8 V. 5. An implant according to claim 4, characterized in that the cathode material (26) is gold. An implant according to any one of claims 1 to 5, characterized in that the standard electrode potential of the cathode material (26) is at least 0.3 V, preferably at least 0.5 V, and more preferably, at least 0.7 V above the standard electrode potential of the anode material (25) .7. An implant according to any one of claims 1 to 5, characterized in that the cathode material (26) is embedded in the anode material (25) in the form of zones. An implant according to any one of claims 1 to 5, characterized in that the first surface portion (28) formed by the anode material (25) occupies more than 50%, pre1. Имплантат, имеющий покрытие (23), которое выделяет ионы серебра в организм человека и, в результате, оказывает противомикробное воздействие, отличающийся тем, что первый участок (28) поверхности покрытия (23) формируется серебросодержащим анодным