One could argue they are using the horizontal orientation to reduce the footprint of the vertical case, they wouldn't be able to use those sense lead circuit boards if they set them up on their narrow edges. But perhaps to the detriment of cell life.
I don't think so wether the cell is laid flat horizontally or on edge horizontally the area would be the same I think it's purely down to a lack of knowledge/common sense and bad design and we're not just talking about detrimental to cell life were talking thermal runaway.
Its the same area but I don't think they wouldn't be able to wire them up as easily like they can on their wide sides:
Safety considerations for mounting configurations of LFP cells vary depending on manufacturer. Need to check data sheet to see what they recommend. Most EV grade cells can be mounted horizontal without issue. But you still need to check.
The central wiring channels would have to be placed horizontally, but if what I'm thinking is correct then the practicality of their wiring design is potentially dangerous so who cares about how easy it is for the wires to be run when the whole thing has a higher potential to go up in flames.
Surely prismatic cells are all essentially layers no matter what manufacturer if a whole cathode lacks electrolyte and your trying to charge the thing it's going to short at best or cause thermal runaway at worse.
It is fine to do that, but the cell holders need to fixate the cells nicely or there will be problems. It seems that there is a metal bar under the pcb. Looks fine.
Completely false. You are referring to an old diagram which is outdated and from old manufacturing methods. None of the cathode is going to be dry in new cells. And even if you cycle it in any orientation, it will not short or cause thermal runaway. You are wrong.
Thanks I was starting to freak out some.
Seems so after what Will said I took another look and in new prismatic cells they use a jelly roll(ovoid) shape so the plates are continuous but surely there's other manufacturers who use the old method same as Winston and people aren't necessarily checking about orientation, or even people buying used cells and using Seplos cases.I still think more people should be aware seems a important point.
the Nylon CALB's had the same restrictions, and while I cannot for the life of me remember where I read it, i was pretty sure that the same applied to the aluminum prismatic cells. could be wrong. the biggest issue I see is that everybody is ordering cells from various levels of resellers... who give you data sheets that they have created not ones that the actual factory have created. (yes some do, but many do not) I went with my last order of cells with winston as I could get all fo the data straight from the company that made the cells, not jimmy changs battery wholesale shop on the corner of Chiang Kai-shek & Mao Zedong street.
Think I'll just go back to searching for ess with that orientation in mind then who knows what batteries are supplied with them better to be safe than sorry, it's obviously going to be a while before the electrolyte drops to that level but I'd rather just have a lower output battery than a
