flippy said:Ham said:The resin, so I am advised, will turn softer and much more pliable in a thermal run away event and thus not be an issue for venting.
your normal 2 part resin you buy at your local store will not do that.
please dont forget that the resin does not give you structural strength and adds a considerable amount of weight wich still needs to be supported and needs more shock absorbing materials and so on. its a circle that just adds more problems then solutions.
most people that think they need resin simply dont. its like the "fuse wire" BS that pops up constantly. people think they need "fuse wire" to protect cells when its just something they saw tesla do and want to copy it. completly ignoring it that its not even fuse wire in tesla packs. its just the cheapest and fastest way to have a robot make thousands of battery connections an hour. i talked to tesla people and they simply stopped correcting people when they kept calling it fuse wire.
Thanks Flippy,
How does it not add structural strength, that seems counter intuitive?
I am not sure what type of resin the builder uses but I have a sample and have been advised to pop it in boiling water to see how much softer it becomes. I’ll have a play this afternoon I think just for interest.
The grin drop tests seemed to show significant cell protection in potted vs unpotted from a non builder perspective but am happy to be educated if there is something missing from my perception of that?
The weight element does seem like a negative, agreed. I am not sure how much weight penalty there is on a 70 cell pack. Part of me wants as light as possible, the other part of me thinks worrying about an extra 500g to a kg on an ebike is silly.
Have you ever seen inside a levo or other brand pack too see how they make them so weather and shock proof, I’d love to see inside of one?