6 ms·
Taking the Hyundai Ionic 5 as an example you have 3 capacities 58.2kwh, 72.6kwh and 77.4kwh with 114s2p, 180s2p, 192s2p. These have nominal voltages of 523v, 65
by VBprogrammer 2y ago
Taking the Hyundai Ionic 5 as an example you have 3 capacities 58.2kwh, 72.6kwh and 77.4kwh with 114s2p, 180s2p, 192s2p. These have nominal voltages of 523v, 653v and 697v respectively.
Even for the same car it's not trivial to use these all in the same system. It might even make most sense to couple them on the AC side but that would mean a lot of small expensive inverters.
- pjc50 2y agoI'd assume the plan is not "use pack as is" but to split it into constituent 18650 cells and build a mega-pack. I'm not sure how reliable that would be..
- VBprogrammer 2y agoYeah, even that is tricky. Every different manufacturer has different packaging for the cells. The Nissan Leaf for example uses a pouch style cell rather than 18650 cells. Even if you stick to say Tesla batteries you have to undo the wire bonding and probably spot weld each battery back together, then balance and charge the pack ensuring you don't have any duff cells. It's a lot of work for reclaiming batteries on an industrial scale.
- trainsarebetter 2y agoHmm do you have any reference material stating they are in fact different series groups? that’s a odd way to do it, generally you just add more cells in each parallel group Regardless most hv solar inverters are 600v or 800v so all those packs would work fine