I actually experienced this some 18635 batteries I use for my high powered flashlights.
some had swelled.
Tossed me and got new ones.
The issue seems to be how often they are used and charged.
Saw this happen in a camera, a mini jumpstarted and a Chromebook. The starter and camera were stored in my truck so subject to wide variation of temperatures. The tell on the Chromebook was that the batters stopped taking a charge.