Simple question, has anyone here used copper strips instead of nickel for increased current capacity and less voltage drop when spot-welding cells together? I found a scientific paper by the name of "'Spot welding' of thin copper sheets" authored by D F Dance and C Duncan but it's behind a paywall. Not sure why copper isn't being used, although I've considered of a few possible hangups:
--more power needed since copper has more thermal conductivity
--time-sensitive oxide removal could be necessary, or highly recommended for highest quality welds
--copper-stainless joining may have compatibility issues (assuming the battery casing is stainless). I know they can be tig / explosion welded though so hopefully this isn't a problem.
--more power needed since copper has more thermal conductivity
--time-sensitive oxide removal could be necessary, or highly recommended for highest quality welds
--copper-stainless joining may have compatibility issues (assuming the battery casing is stainless). I know they can be tig / explosion welded though so hopefully this isn't a problem.