Teslas battery packs are assembled from thousands of individual small cells each of which has a built in "pressure relief" feature which basicly ruptures the cell canister in a controlled manner and location.
It is not a resetable feature, its a safety relief to prevent a explosive failure, and it renders the cell effectivly permanently defective.
Think of it as like the "ring pull" on a soft drink or beer can,...but on a much smaller scale.
Most 18650, 21700, 26650, and similar cylindrical cells, have that type of pressure safety relief , designed into them.
https://batterybro.com/blogs/18650-...-battery-safety-101-anatomy-ptc-vs-pcb-vs-cid
It is not a resetable feature, its a safety relief to prevent a explosive failure, and it renders the cell effectivly permanently defective.
Think of it as like the "ring pull" on a soft drink or beer can,...but on a much smaller scale.
Most 18650, 21700, 26650, and similar cylindrical cells, have that type of pressure safety relief , designed into them.
https://batterybro.com/blogs/18650-...-battery-safety-101-anatomy-ptc-vs-pcb-vs-cid