Why nickel for joining lithium cells?

While we are it, it does seem like nickel plated iron may be the norm. The electrical conductivity of iron and nickel are fairly similar. Nickel is 1.43 x 10 to the 7th. Iron is 1.00 x 10 to the 7th.
Then we have "stud" copper which is 5.96 x 10 to the 7th. Why not copper plating for joining lithium cells? Or aluminum? Or lead? All more conductive than nickel and iron.
Pretty sure spot welding works on other conductive materials. Why do they use nickel/nickel plated iron for joining lithium cells?
Then we have "stud" copper which is 5.96 x 10 to the 7th. Why not copper plating for joining lithium cells? Or aluminum? Or lead? All more conductive than nickel and iron.
Pretty sure spot welding works on other conductive materials. Why do they use nickel/nickel plated iron for joining lithium cells?
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It is also relatively corrosion resistant.
Here is an 80 page booklet on Nickel plating:
https://www.nickelinstitute.org/media/2323/nph_141015.pdf
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Perhaps almost all of it is simply nickel plated iron. That would be super cheap. Plating is cheap. Even gold plating is surprisingly cheap. They can plate down to a micron or so.
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Lithium titanate may some day be practical for solar. Some day. Handles freezing weather very well. Very safe. Very expensive. Inefficient when discharging though. Big and heavy - almost seems like a LA hybrid in its characteristics.
Many of the LFP batteries meet this at cell level but they are not listed as a battery system.
I can't use them for my clients because I could be sued. My clients would probably have their fire insurance denied in a claim for this reason. It is a fine thing to build a lithium battery system as long as your eyes are open to what you are doing.
I use LFP that are listed as a battery system. About 4 makes now in the US. If they do not sell it in the store here you should beware and research the company.
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