Hi there! I'm hoping for high quality feedback for this topic, so if you don't know very much about contractor alloys and have never worked with pressure contact design, unless you can state some industry materials related to the project, then that's not the kind of intel. i'm interested in!
It's an incredibly technical project, focusing on a small number of pieces, to tweak them for absolute maximum performance and safety, robustness, easy of use, so a lot cool tweaks will happen prior to the final version.
I'm aiming for a box cost of $30/KWh of cells for home-made versions, to $70/KWh if you glue the factory kit yourself.
It can be completely air-tight, for humidity and splashes, using 50 PSI rubber seals and a 15 PSI pressure equalization valve and color changing silica gel, for those that live in jungles as dry as a shower cubicles.
It's going to be open-source. Everyone can 3D print boxes components of and every every size enclosure using the box STL generator...
Other companies can make make their versions, I'll try and subsidize solar for DIY'ers from the Phillipines, Cambodia, Bolivia, faraway places.
Maximum electrical output is 100A for the big box from the video, when it's configured to 12V, and only 50A @ 24V.
The springs are not electrical, the current goes through 8AWG Copper busbars and 20mm2 Aluminium-Nickel contacts compressed by 2KG force springs.