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LiFePo handle temperature extremes much better than Li-ion, have many times the cycle life, and can be more deeply discharged and charged. The downside is th
by danans 4y ago
LiFePo handle temperature extremes much better than Li-ion, have many times the cycle life, and can be more deeply discharged and charged. The downside is the increased weight.
- jacquesm 4y agoIndeed they do. My personal favorite is Lithium-Titanate but they are still a bit expensive. https://en.wikipedia.org/wiki/Lithium-titanate_battery https://en.wikipedia.org/wiki/Lithium-titanate_battery These are not very good for mobile applications such as vehicles due to the lower energy density but for stationary applications they hold a lot of promise and they are in production already. The volume is still too low though, once that goes up this will be a serious contender for things like home batteries. They have some really interesting properties, one of which is a very long predicted life span (30 years!!).
- danans 4y agoNifty chemistry. It seems to have half the energy density of LiFePo4, but double the lifespan. Titanium seems like an expensive cathode material though. Their other standout property seems to be fast charging, which alas would be most useful in vehicles.
- jacquesm 4y agoQuite interesting indeed. For RVs they are already used, but not so much in regular EVs for obvious reasons. The perfect battery will probably never become a reality, but the incremental changes may get us specialist solutions that are good enough for all practical applications. Titanium isn't all that expensive in raw form, it's when you start machining it that it gets expensive quickly. Typically it's about 1.5 times whatever the going rate for Aluminum is.