Cleaning disc having sacrificial electrolysis cell and corresponding mobile floor cleaner

A scrubbing disc comprising:

• a backing having a front face;
• bristles attached to the front face;
• and
• first and second electrodes permanently attached to the backing and being spaced from one another by a gap so as to form an electrolysis cell on the scrubbing disc, the electrolysis cell having a liquid inlet and a liquid outlet, which enable liquid flow through the electrolysis cell toward the bristles.

The mobile floor cleaner of claim 17, further comprising:

• a frame;
• at least one wheel connected to the frame and enabling movement of the cleaner relative to a surface;
• control electronics configured to generate a voltage potential;
• and
• an electrical connection, which passes the voltage potential from the control electronics to the electrolysis cell.

A mobile floor cleaner comprising:

• a liquid source;
• a cleaning head;
• a scrubbing member carried by the cleaning head, which is rotatable in a plane parallel to the surface and comprises an electrolysis cell that is removable from the cleaner with removal of the scrubbing disc;
• and
• a liquid flow path from the liquid source to the electrolysis cell.

A method comprising:

• removing a first scrubbing disc from a mobile floor cleaner, the first scrubbing disc comprising a first, sacrificial electrolysis cell;
• retaining a control circuit for the first electrolysis cell on the mobile floor cleaner during the step of removing;
• and
• after removing the first scrubbing disc, attaching a second scrubbing disc comprising a second sacrificial electrolysis cell to the mobile floor cleaner such that the second electrolysis cell becomes electrically connected to the control circuit.