Worst they can do is leak caustic goo, which will mess up the battery compartment of your electronics. That dent doesn't look piercing - it'll be fine. Don’t do it. Our exactly identical battery must have had a dent in it new out of the package. Immediately affected the light we put it in.
Shortening of the battery cells above the punch tip vs. the indentation distance of the punch is shown in Fig. 17, in which three different stages of the battery cell deformation can be more clearly distinguished. At the first stage, the battery is shortened slightly.
That dent doesn't look piercing - it'll be fine. Don’t do it. Our exactly identical battery must have had a dent in it new out of the package. Immediately affected the light we put it in. I looked and 4 days later corrosion and nasty.
Crack propagation in the armor plate goes through circumferentially around the punch tip, leaving a cap on the punch tip and a hole in the armor plate. Further indentation of the punching object enlarges the diameter of the punctured hole and deforms the plastic enclosure of the battery module.
However, from the point of view of energy, as shown in Fig. 27 b, shortening of the central battery cell in the dynamic case becomes smaller than that in the quasi-static case when dissipation of the reaction force work exceeds a relative low value, saying 1 kJ. This can be explained with the deformation profile comparison in Fig. 28.
The gradually concentrated indentation from the punch tip and the resistance from the floor panel cause compression and shortening of the cells exactly above the punching tip. It can also be noticed from the last frame in Fig. 16, that the upward moved battery cell finally punctured the floor panel.
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