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While li-ion is widely used in practice, I don't think it's fair to say it is a mature technology (as a sibling commenter points out, there are still lots of re
by fzzzy 10y ago
While li-ion is widely used in practice, I don't think it's fair to say it is a mature technology (as a sibling commenter points out, there are still lots of research papers coming out in the field) or that it is well understood.
For example, Boeing had problems with battery fires on the 787 in 2013 and 2014. "The causes of the battery failures are still unknown."[1]
[1] https://en.wikipedia.org/wiki/Boeing_787_Dreamliner_battery_problems https://en.wikipedia.org/wiki/Boeing_787_Dreamliner_battery_...
- Animats 10y agoLi-ion is a widely deployed technology that isn't very good. Like coal. This battery chemistry is inherently fragile. Drive a nail through a Li-ion battery and it will explode. Tesla had to put a titanium plate under their battery after some fires from punctures by road debris. If a Li-ion battery overheats, it will go into thermal runaway and increase its temperature until it catches fire. Overcharging alone is sufficient to do this. It takes about six safety devices to make a Li-ion battery reasonably safe. Leave some of them out, and you get the hoverboard debacle. There are safer battery chemistries, such as LiFePO4, but you give up about 14% energy density.
- LeoPanthera 10y ago> Drive a nail through a Li-ion battery and it will explode. It's misleading to say that it "will" explode. As the following video shows, they don't always. https://www.youtube.com/watch?v=pqPFuzRIANs https://www.youtube.com/watch?v=pqPFuzRIANs
- th0br0 10y agoThat's LiPo though, not Li-Ion