High capacity Li-ion
High capacity Li-ion
(OP)
I need to make a large capacity li-ion battery (60Ahr.) However, I do not need a large discharge rate. I will probably make three 20Ahr cells and switch them in and out as need.
2.6Ahr 18650s i've found to be the easiest to purchase, but I'd rather not have to solder 8 or 9 of these together so a cell with a higher capacity (at least 4Ahr) and light weight would be nice. Can anyone recommend a good, reliable, high capacity cell to construct these batteries with, as well as a good retailer?
Currently I'm looking into what SAFT has to offer.
Thanks!
Peyton
2.6Ahr 18650s i've found to be the easiest to purchase, but I'd rather not have to solder 8 or 9 of these together so a cell with a higher capacity (at least 4Ahr) and light weight would be nice. Can anyone recommend a good, reliable, high capacity cell to construct these batteries with, as well as a good retailer?
Currently I'm looking into what SAFT has to offer.
Thanks!
Peyton





RE: High capacity Li-ion
RE: High capacity Li-ion
I'm looking for higher capacity cells.
RE: High capacity Li-ion
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: High capacity Li-ion
RE: High capacity Li-ion
I think that you're going to run into all sorts of problems with parallelling batteries on your own. The weakest cell in the stack will vampire the stronger ones.
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: High capacity Li-ion
I agree about the downside to parallelling a lot of cells. That's another reason I don't want to go the 18650 route. I really just need a proof of concept for what I'm building so it's not something that needs to be (or will be) in operation a while. The cells I would really go with are made by Quallion, but it looks like they couldn't produce enough in the time I need.