Hi,

 

I make some battery packs where the cells are connected by spot welding 3mil
nickel strips to the cells. I also have some wiring that needs connecting
and I was considering the use of a small PCB.

 

The idea is to spot weld nickel  strips from the required battery terminals
to the PCB. I could solder but the nickel strips can be difficult to solder
and spot welded connections are easy, fast and reliable. 

 

My question is: What is the best finish for the PCB to support the spot
welding of the nickel strips AND for attaching soldered wires?

 

I would guess a Nickel finish though I don't know how thick. 

 

I am using a Sun Stone Dual Pulse spot welder and I know it can, and will,
blast away a spot of copper foil if the current is set too high. I will
probably need a minimum of 2oz copper to support the spot welding. 

 

Any ideas or suggestion on thickness or materials?

 

Thanks,

Bob K.



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