nice, that material is quite robust in high temperatures, great idea.
kapton, also called polyimide is used in all sorts of builds.
1mil is pretty paper thin, and wrinkles easily with my clumsy application
2mil much easier to apply and feels much more robust to me. would recommend 2mil if can find.
CATL 302Ah Datasheet
diysolarforum.com
View attachment 78362
View attachment 78363
207.2mm tall (8.1 inch tall, need 8.1 inches width total of tape)
173.93mm wide
71.65mm deep
to wrap one cell around the sides, this requires at minimum 4 faces, preferably 5 so there's no gap at the start/end.
counting distance around the cell...
left side + front + right side + back + left side
71.65mm + 173.93mm + 71.65mm + 173.93mm + 71.65mm = 388.88 mm length of tape per cell.
freedom time, 15.31 inches of tape per cell;
1 yard is 36 inches. 1 inch is 25.4mm. 1 yard is 914.4mm.
this beautiful roll of polyimide/kapton tape is 36 yards, or 1296 inches or 32918.4 mm.
View attachment 78366
https://www.amazon.com/Polyimide-Tape-Temperature-Electrical-Application/dp/B07HB9XKSD/
View attachment 78367
since that roll is 3inches wide and the cell is 207.2mm or 8.1 inches tall, we will need at least 8.1 inch / 3 inch = 2.7 and round up to 3 parallel runs of tape around the cell. so we need 3x the length of tape to cover the entire height of the cell.
recap!
15.31 inches of tape per cell
1296 inches of tape per 36yard roll.
1296 / 15.31 = 84.6 loops around the cell
84.6 loops around the cell / 3 strips wide = 28.2 cells worth of tape
28.2 cells worth of tape in the 17.95 usd roll of 1mil kapton/polyimide.
17.95 usd / 28 cells = 0.64 usd per cell for tape
64 cents per cell to wrap with polyimide/kapton seems rather affordable to me in my humble opinion.
just another option.