flippy wrote: ↑Sep 19 2019 7:57am
your solution depends on too many different materials to keep their factory properties wich simply is too much of a variable in batteries where you dont want them.
its also restrictive in form factor and power density in comparison by using simple honycomb cell holders and spot welding and the cost advantage is simply not there. a replacement for spot welding needds to be superior otherwise it will not change.
your take on thsi is fine for DIY tinkerers, not "proper" commercial batteries that need to work for decades without fail.
My solution does not rely on many materials, not many more that of a spotwelded pack.
I thought the talk was about our builds of the batteries and not commercial so lets compare apples to apples.
Density is not always a thing, its more of a mindset in most cases.
Its possible to build dense pack using my method using staggered approach but that would be financially unwise for me, hence the form factor that is less dense but suitable for larger audience. My shout was challenging your saying that there is no solution when there is. It may not satisfy your needs but it works for thousands and so far 3 year reliability is not a bad start on compression based battery pack.
I have seen professionally made segway batteries which are spotwelded, and seen some failing cause of spotwelding. When you say "decades" in DIY context, you start to look like a naysayer and you will dismiss any valid argument thrown at you just to prove your unproven point.
I can guarantee you that someone who is coming to DIY solution that does not require welding will be times and times better, cheaper and far more enjoyable, and for those who done welding and use something i have, they wont wont to comeback and that is a feedback i get. Then there is power. I will do comparison between spotwelded and compression pack sometime to show the benefits.