Continuing the discussion from Balancing/Equilibrium Board vs BMS. Whats the difference?:
This is how we are currently assembling our packs. This is just a basic mockup, we also apply a strip of fish paper over the brass strips before sealing the packs in heat-shrink for added electrical insulation. Nickel tabs are spot welded to the li-ion cells and the fuse wires are soldered onto the the tabs allowing for a serviceable connection. I’ll post more photos with greater detail while we complete our latest build.
Cell level fusing is probably the best way to insure a failing cell does not take out an entire parallel pack of cells throughout the lifetime of your pack. This allows us to string together huge links of paralleled cells and build battery systems with incredible range without worrying if a faulty cell will ruin someones day a few years down the road.
All together the packs measure under 22mm after heat-shrink is applied.
If anyone is interested in these feel free to send us a message.
.stl file on thingiverse: http://www.thingiverse.com/thing:1712459