I had to think about what "battery ribbon" is. I presume you mean the ribbon for ejection of batteries from a compartment/holder?
I've never designed that into anything myself, as most of my designs use rechargeable batteries, but I'd suggest a mechanical fastener.
Of the products I've seen, they are typically held between two plastic parts that screw together, maybe with a sewn/fused loop, or in one case actually moulded into the plastic (not sure how that was done).