I've a question about how are made batteries connector of smartphones. I've tried to find images of an opened battery, but with no result. In particular this image:
This connector is a module? How it's soldered internally?
Also, It can be a pcb attached to plastic with gold plated pads?(or in case of no, it's possible to do something like this or will result unreliable contacts?)
EDIT: I mean gold pads on PCB and not on plastic.