Wriggles wrote: https://files.exro.com/technology/cell-driver/Exro-Cell-Driver-Catalog.pdf
Pandora. The confusion is in the terminology. It keeps changing. Link is a description of the Cell Driver.
You know what a coil driver is.
The Exro Cell Driver™ is a fully integrated energy storage system (ESS) equipped with its proprietary Battery Control System™ (BCS).
The Battery Control System controls batteries down to the cell level. This is unique according to EXRO.
The cell driver currently uses LFP batteries...new, used or a combination thereof, but is agnostic to cell type. From Link, page 10:
" Lowest cost commercial LFP based, fully integrated energy storage system assembled in North America available in our power class. Additional cost savings by reviving and utilizing second-life batteries."
I suspect that the superior certification results (thermal) for the ESS were based on LFP batteries. My understanding is that certification is granted for a specific battery type.
The evTS uses LFP batteries and is a supply for cell driver extended life use.
My understanding is that the same or smilar control mechanisms used in the cell driver are also used in the onboard battery management system. Old news..no longer have a reference. But is the only thing that makes sense. As previous suggested, control down to the cell level helps mitigate thermal runaway/fire.