I don't think you can conclusively say "Modern batteries should never swell" since there's always the possibility of manufacturing and design defects in new batteries too.
It's the battery equivalent of the halting problem in software.
No manufacturing and design process is perfect, there will always be errors. If you do find a perfect design and manufacturing process, I think you wouldn't be posting here on hackers news but would be drinking champaign with Bill Gates and Warren Buffet.
It's the battery equivalent of the halting problem in software.
No manufacturing and design process is perfect, there will always be errors. If you do find a perfect design and manufacturing process, I think you wouldn't be posting here on hackers news but would be drinking champaign with Bill Gates and Warren Buffet.