So this is pretty cool, as a GT alum. Caveats are: - The article contrasts the price of iron and cobalt. It’s true, but fluoride is more expensive than iron. S

So this is pretty cool, as a GT alum. Caveats are: - The article contrasts the price of iron and cobalt. It’s true, but fluoride is more expensive than iron. Still cheaper than cobalt, though! - This is a very new chemistry, which means a lot of scale-up work will have to be done before it becomes commercial. Other technologies have stalled at this phase, like nanostructured Si anodes and S cathodes. In particular, polymer electrolytes can be easy to manufacture or not. - Li-ion batteries typically perform better at higher temperatures. The tests in this article were performed at 50 C, which may not translate to practical performance in an environment which is often below 0 C. Also, 300 isn’t really that many cycles.