hillzofvalp said:
I have a relationship with these guys. I've machined their material for my motorcycle pack (below mb5 link). This material kinda kills two birds with one stone because you need some structure for large cylindrical cell arrays anyways to reduce vibrations which can undermine the nickel weld points.
The big downside is you have to double shrink wrap the cells and be very careful with your nickel terminations. It's not a HUGE deal, just have to take extra step in the assembly process. Once everything is all secured and taped up it becomes a non-issue.
Sleazy companies like AllCellTech exist thanks to customers like you. Or may be thanks to salesmen like you or that lester something guy. The line is getting blurred.
You repeatedly said 8C for the same Sanyo cell used in laptop computers for years. I have used those cells, both new and used. I would like to see you show everyone a graph of your 8C discharge with that cell.
You also claimed that this Sanyo cell is NMC, whatever the heck that is. Did you make that up? Because Sanyo never said it was NMC, not to my knowledge anyway. So prove me wrong, show me the Sanyo document and post your 8C discharge graph.
AllCellTech is already a shameless liar when it claims 2C continuous discharge. And you have the audacity to quadruple that!
hillzofvalp said:
Basically, the phase change material is graphite and wax based.. increases the peak C rate possible by the cells (around 8C I'd say). more info on technology here:
http://www.allcelltech.com/technology/thermal-management-with-phase-change-material/extend-cycle-life
I'm selling bare cells for him in another thread. http://endless-sphere.com/forums/viewtopic.php?f=31&t=42800
hillzofvalp said:
Circa 2006-07 cells. PCM machined I think in 2009. Tabbed in 2009. I cycled it once. That's all it has seen. If you want I can test it at 8C but I think it's fine,