Just wanted to make a post about these as I haven't seen them mentioned much (I happened across them in another thread here) and they are pretty awesome if you ask me!
They basically make the copper/nickel sandwich spot welding technique a total breeze. I didn't have anywhere near the current requirements these offer, but just really liked the clean look, and hey - more overhead in a design the better!
The above is a pic from the listing here: https://www.aliexpress.com/item/1005005988896958.html - I actually ordered 9x2 strips after discussing with the seller.
The copper strips sit on top of standard battery holders, and the connectors themselves drop low enough to account for the plastic tops. Here is a pic of my battery being built:
The construction of them is basically 0.3mm copper sheet with the squares cut out completely, then the part that connects to the battery is nickel that is directly laminated to copper, the total thickness of this bit is also 0.3mm, I'm not sure quite how thick the nickel layer is, but these strips welded easily with 1200A at 50j creating welds that tear.
They also do end pieces to connect to the end P group that have an extra width of copper than folds down over the edge ready for connecting the main leads to.
The big disadvantage I suppose is a moderately higher cost, but this wasn't a big deal for me in the scope of the project. $64 including shipping for 14x of the 9x2 and 2x of the end pieces. IMO well worth it.
They basically make the copper/nickel sandwich spot welding technique a total breeze. I didn't have anywhere near the current requirements these offer, but just really liked the clean look, and hey - more overhead in a design the better!
The above is a pic from the listing here: https://www.aliexpress.com/item/1005005988896958.html - I actually ordered 9x2 strips after discussing with the seller.
The copper strips sit on top of standard battery holders, and the connectors themselves drop low enough to account for the plastic tops. Here is a pic of my battery being built:
The construction of them is basically 0.3mm copper sheet with the squares cut out completely, then the part that connects to the battery is nickel that is directly laminated to copper, the total thickness of this bit is also 0.3mm, I'm not sure quite how thick the nickel layer is, but these strips welded easily with 1200A at 50j creating welds that tear.
They also do end pieces to connect to the end P group that have an extra width of copper than folds down over the edge ready for connecting the main leads to.
The big disadvantage I suppose is a moderately higher cost, but this wasn't a big deal for me in the scope of the project. $64 including shipping for 14x of the 9x2 and 2x of the end pieces. IMO well worth it.
