Comment Re:What about other places? (Score 4, Informative) 29
"Mature technology" can mean different things. Batteries hold a LOT of energy which can usually be released very quickly if the battery is damaged. We want batteries with more energy and less volume, so pack that energy tighter. And as time goes on, we get companies which... don't follow every single safety precaution (because that's expensive) in design and manufacture of the batteries, especially because the components of the batteries are made by many companies, then assembled by other companies, then sold to other companies for use in products which were ordered by Apple, Samsung, etc for sale to us. A few battery issues are hard to track back, and companies which ignore safety are usually happy to fold and reform with a different name when lawsuits appear.