The Tesla 2170 cell has a big hole down the middle of it...
That seems like a missed opportunity for a watercooling pipe, or anything else to use that space effectively.
That seems like a missed opportunity for a watercooling pipe, or anything else to use that space effectively.
Performance assessment of a passive core cooling design for cylindrical lithium-ion batteries https://doi.org/10.1002/er.4061
You can only have a roll that long before tension from anode expansion will start mechanically damaging it.
Manufacturers intentionally leave some free space to let the roll expand, and shrink