I'm looking for some SMD shims or something to solve this problem. We have a coin cell on a PCB and the side that contacts the PCB also has traces under the cell that don't connect to the cell.
So I'm after some small dots of something suitable for contacting the cell which can be placed by the pick snd place machine and soldered like any other component, just a bit thicker than the surrounding tracks or solder mask.
I envisage placing three of these in a triangle to ensure contact with all of them.
They would need to be plated suitably to work as a battery contact.